Simple webapp with BASIC authentication

To enable BASIC authentication in a webapp, one needs to
(1) configure roles and other security aspects in web.xml;

(2) administratively create the users in application server; and

(3) map the roles declared in step 1 to users created in step 2, with appserver-specific descriptor.

The following is a simple webapp that only contains 3 files: TestServlet class, web.xml, sun-web.xml.

package test;

import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;

public class TestServlet extends HttpServlet {
protected void processRequest(HttpServletRequest request, 
                              HttpServletResponse response)
               throws ServletException, IOException {
   PrintWriter out = response.getWriter();
   out.println("Hello from " + getServletName());
}

@Override
protected void doGet(HttpServletRequest request, 
                     HttpServletResponse response)
               throws ServletException, IOException {
   processRequest(request, response);
}

@Override
protected void doPost(HttpServletRequest request, 
                      HttpServletResponse response)
               throws ServletException, IOException {
   processRequest(request, response);
}
}

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="3.0">
<servlet>
  <servlet-name>TestServlet</servlet-name>
  <servlet-class>test.TestServlet</servlet-class>
</servlet>
<servlet-mapping>
  <servlet-name>TestServlet</servlet-name>
  <url-pattern>/TestServlet</url-pattern>
</servlet-mapping>

<security-constraint>
  <web-resource-collection>
      <web-resource-name>secure</web-resource-name>
      <url-pattern>/TestServlet</url-pattern>
  </web-resource-collection>
  <auth-constraint>
      <role-name>tester</role-name>
  </auth-constraint>
</security-constraint>

<login-config>
  <auth-method>BASIC</auth-method>
  <realm-name>file</realm-name>
</login-config>

<security-role>
  <role-name>tester</role-name>
</security-role>
</web-app>

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE sun-web-app PUBLIC "-//Sun Microsystems, Inc.//DTD GlassFish Application Server 3.0 Servlet 3.0//EN" "http://www.sun.com/software/appserver/dtds/sun-web-app_3_0-0.dtd">
<sun-web-app>
<security-role-mapping>
 <role-name>tester</role-name>
 <principal-name>joe</principal-name>
 <group-name>user</group-name>
</security-role-mapping>
</sun-web-app>

To create the user in GlassFish:

$ $GLASSFISH_HOME/bin/asadmin create-file-user --group user joe

Compile TestServlet class and jar up *.class and *.xml into a test.war:

WEB-INF/classes/test/TestServlet.class
WEB-INF/sun-web.xml
WEB-INF/web.xml

Copy it to $GLASSFISH_HOME/domains/domain1/autodeploy directory to deploy it. To run it go to the url http://localhost:8080/test/TestServlet. After entering the username and password, the following response is displayed:

Hello from TestServlet

Pour Your Heart Into It- A good book for your business and life

A book ''Pour Your Heart Into It'' by Howard Schultz - CEO Starbucks of writing only the principles shaped the Starbucks phenomenon, sharing knowledge, which he summarized from the journey turned into a delicious coffee an essential part of the American experience. Marketers, managers, and entrepreneurs will discover how to turn passion into profit in the chronicles of a company sign''has changed everything ... from our tastes, our language for the whole area to the face of Main Street.''

The success of Starbucks Coffee company is one of the most amazing story of the business throughout the decades. A small shop in Seattle river eventually grew and developed more than one thousand six hundred stores around the world and every day a new store coming up. Wonderful of all, Starbucks has succeeded in maintaining its commitment to product quality and excellent bring what is best for their employees.


"Pour Your Heart Into It''- a "white book" of the big boss and also the founder of Starbucks, Howard Schultz. Authors disclose no secret of the secrets has put Starbucks from a small coffee shop in Seattle to become one of the giant companies of the world today.

"Pour Your Heart Into It''not'' a book of normal business. The purpose of the book is not for the life of Howard Schultz nor to give advice what to do when the company is having problems or to use the material demonstrates the company's history Starbucks. Book review sections do not have dogma, no bullets for work, no theoretical framework analyzing why some businesses succeed while the other businesses failed. The book is about building a team of successful business based on shared values and operating principles rarely seen in American society and business. It tells of the journey down the Starbucks team learned important lessons about business and about life.

"Pour Your Heart Into" It is a book to inspire, lift morale for those who have passion, zeal and are pursuing their dreams. The book is not about coffee, but about leadership, passion, patience, commitment and love for everything that we do while others thought was impossible. "If you pour all my heart into every job we do or in any other business that properly, you can achieve the dreams that others think impossible. That is write the story to life with a happy ending. "

Anyone, whether they are preparing or have a startup business owners that will also find this book wonderful lessons about business and arts leaders are wrapped in an appealing story as a book novel. That was the lesson of building a business with true social responsibility, a topic being talked about in the business environment in Vietnam today. Social responsibility embodied in the story that Starbucks has done: with employees - "We never achieve their goals unless both companies share a common vision. To turn that ideal into reality, we need to create a business that respect employees, inspiring them to work and to share the results with those who work together to create a long value limited company ". With with customers - is committed to bringing customers the best coffee with the best quality and to give customers an amazing experience Starbucks, Starbucks cafes turn into" a place third place "outside the house and offices of customers. With the community - the policy to help farmers in coffee growing countries, with shareholders - always brings the highest benefit for their investment ...

You can find this book in Amazon : Pour Your Heart Into It: How Starbucks Built a Company One Cup at a Time

HTC HD7 Review- For people love Window Mobile platform

HD7 owners powerful configuration interface with new, flexible Windows platform Phone 7 but it is limited to use on many applications.

After a long development, this year, Microsoft has unveiled Windows Phone 7, serial Windows Mobile platform with numerous enhancements and entirely new, does not have much contact with older versions.

HTC HD7 is one of 10 model was first published, this is the first device using Windows Phone 7. Machine owned large screen 4.3-inch and design legacy of elder HD2, with a sturdy frame, thin and compact. No more upgrades, so easy to find the HD2 HD7 is a Windows platform instead Phone 7 to 10 years old

Here are the highlights in HTC HD7.

• 4.3 inch screen, 16 million color LCD technology, capacitive touchscreen, WVGA resolution of 480 x 800 pixels.
• Dual-band 3G support with HSDPA, HSUPA, 4-band GSM.
• Snapdragon 1GHz processor, 576MB RAM, 512MB ROM.
• 5 Megapixel Camera, support auto focus, LED flash two, filming HD.
• Connectivity: Wi-Fi b/g/n, Bluetooth 2.1 A2DP vwois, 3.5 mm port, microUSB, GPS.
• 8GB internal memory.
• Platform: Windows Phone 7.
• Support Office applications fully stand behind, Facebook integrated FM radio.

Design

With the size of this model is 122 x 68 x 11.2 mm and weighs 162 grams, this is not the right size for many people, but can see that look very nice, slim design and is compact in hand. HD7 covers the combination of a showy solid metal around, the window in front mixed with the softness of the plastic on the back battery cover.

The large size gave HD7 wide screen, 4.3-inch multi-touch support. Designed for the big screen this model brings to the already large icon of the Windows 7 Phone, this becomes larger. In addition, users can also comfortably to watch movies, play games, surf the web as well as reading the content experience.

Besides, the big screen HD7 also bring a larger virtual keyboard, which allows editing relatively quickly and accurately, even when placed horizontally or vertically.

Very good touch on the HD7. Microsoft has launched its largest hub, very gentle, you can touch up, go to applications, but shortcut with smooth precision. Activities such as sliding, scroll, zoom multi hardly meet with any difficulty.

HD7 screen's brightness and clarity, with a resolution of 480 x 800 pixel. Below the screen are three buttons Back, Start and Search, here are the keys are mandatory for all models running Microsoft Windows Phone 7 requirements. Keys using capacitance sensor mechanism, other than hard buttons as on HD2, if he takes him a little harder to hit, then this model is quite soft in touch to control. However, as to the horizontal, or user did not notice, they can click on this button touch.

Machine equipped with microUSB port and 3.5 mm headphone jack in front, while the reverse is the camera and two flash LED. HTC also stand up to the models equipped with a hard steel, strong, bracing around the camera, allowing up to watch movies, listen to music. The loudspeaker of the machine are arranged above and below the screen.

Interface and the limitations of the Windows Phone 7.

Phone with Windows 7 and a strong configuration, HD7 is expected that smartphone users are interested. However, ignore the flashy beginning, Microsoft's platform is very much limited.

Interface, HD7 really impressed. Home screen icons are large, display boxes or rectangles (greater than 2 times the square), lets go to the applications. When the slider to the right, or click on the arrow in the corner, the icon information (all applications and functions on the machine) is in a long list.

Easily observed, the large icon in Home screen is easy to put into their hands, however, due to large size, little icons will be put out. Meanwhile, in the second page, list of symbols arranged in alphabetical order, but this arrangement takes time to find than the grid icon on the Windows Mobile before.

Impressions on the Phone 7 Windows interface can also cited as the layout of text, images are very generous, and create a larger space. Silky touch combined with the flip open applications, making the soft  image HD7 easy to sympathize.

Meanwhile, Windows 7 Phone relatively limited, especially for those who love to install the application, mischief on the platform. Similar to the early iPhone, currently only able to install applications for the machine through the Marketplace, however, the only time this software is the free utility is installed, the application does not pay support payments in some country.

Also, do not take advantage of the benefits of Windows Mobile before, the new platform also lost a huge amount of software. HD7 and Windows Phone 7 is still not prepared to support all country keyboard.

Many restrictions on this model can not be continued after the file management system, Bluetooth file transfer may be. No multi-tasking machine, copy / paste, no video call, flash the browser.

Map of the machine is also used as Bing maps and software is limited a lot in some country, not rich as Google Maps. It also lacks handwriting recognition, Windows Mobile, does not support DivX / XviD video, ringtones also only allows downloads from the Marketplace.

Features

HD7 is the phone model possesses many features of fashionable mobile phones. Machines running on four-band GSM, speakerphone support, phone conversations, meetings and tools such as speed dialing, multimedia messaging.

Besides, apart from 3G support, the machine also integrates Wi-Fi b / g / n, Bluetooth 2.1 and GPS. A limitation of Windows Phone 7 tethering is not supported, users will not share the 3G to Wi-Fi for mobile devices such as Android 2.2.

Although HTC sealed interface, but also have added an application called HTC Hub. This new software upgrade last round, outside support showing more weather information, location, temperature. HTC Hub Upon entering, you will notice a new interface looks like Windows Mobile or Android Sense. Information such as clocks, weather displays quite lively with the accompanying effects (such as thunder, rain ... with sound).

HTC Hub also comes with many software utilities are available, when click, it will automatically link to the Marketplace for download. Unfortunately, some premium games, users in some country will not download, this time applied only support free applications and do not allow payment.

HTC HD7 16GB of internal memory and does not allow users to expand through external card. Capacity on relatively complete for users to download entertainment content for multimedia, game ...

HD7 camera is 5 megapixel camera, users can enter custom as six levels of resolution, effects, photos ... In addition, HTC is also fitted Photo Enhancer applications, this is free software that allows editing images with colors, different effects.

In fact, the picture quality on this model at a moderate level, quite in the picture and crisp, sharp pictures with flash in the night does not look nice, quite light in return. With HD video recording capabilities, the quality on the HD7 is in fairly.

Performance

Voice quality test showed very good HD7, machines for large and full sound.


One problem that many people interested in recent times is the quality wave on the HD7. In fact, the waves of this model are often unstable. The manual covers the back of the machine, the waves sometimes reduced. However, this phenomenon occurs only when set parallel to 3G and GSM. After turning off 3G, the waves of the HD7 has become a stable phenomenon. Besides, although the test waves decreased, but the call quality on stability and not having any problems like dropped calls ...

HTC HD7 uses 1GHz Snapdragon processor, memory of the machine is 576MB RAM, 512MB ROM, processor speed of this model is equivalent to HD2, however, the use of a new platform for that, HD7 runs very smooth, touch screen works well, is light touch and stroke can go into other applications without any difficulty.

HD7 uses 1230 mAh capacity battery, according to the manufacturer's notice, machines for continuous talk time of 6.5 hours, standby time is 14.5 days. Actual use facebook regularly connect, surf the web via Wi-Fi and 3G showed more than a day to recharge it. If disabling the connection mode, and user level called normal hearing, approximately 2 more days.

Rival HTC HD7 

Located high in the segment, HD7 model that possesses many rivals from Apple, Samsung, Sony Ericsson or even HTC.

HTC HD Desire

The HTC phones running Android more attractive to applications and other utilities for users such as Wi-Fi, customize the look and cheaper price of around 40$. Compared with the HD7, the machine can not stand, but the 8-megapixel camera, features the same connection.

iPhone 4

iPhone 4 HD7 has a higher price, but it is also attractive and equipment can eliminate all competitors in the senior group. In addition to the big screen and stand can be constructed, the HD7 lost in design, applications, software sharpness, especially the ability to attract.

You can find iPhone 4 in Amazon :  Apple iPhone 4 Black Smartphone 16GB


Samsung S Galaxy

Galaxy S screen is 4 inches smaller than the HD7, but thanks to an impressive Super AMOLED technology. It also more convenient thanks to the Android platform, but plastic is not designed to impress as the HD7.

Dell Streak

Dell's new streak on Android 2.2 and also a rival, this model can display up to 5 inches, the style of a mini tablet. However, comparison of styles, impressive in view, this model may be in HD7.

Sony Ericsson Xperia X10

X10 is now available in Android 2.1, this is a smartphone with a sleek, elegant and masculine with the HD7. The screen is 4 inches smaller than the HD7 and the interface is not impressive, however, like Desire HD, S Galaxy, the machine more attractive by applying

You can find this mobile in Amazon : HTC HD7 Unlocked Global Smartphone - Window 7, 1 GHz processor, GPS, WiFi (Unlocked T-Mobile Logo)

5 camera with unique feature in 2010

Not only has the function of photography, these machines possess many unique features, such as part-mini projector, and video capture or 3D Panorama.

Other features originally used to take pictures, camera manufacturers are now racing to supplement with as many unique features, provided for their products stand out on the market compared to competitors.

1. Nikon Coolpix S1100pj

Unique features: integrated projector.

Nikon is still maintained its top spot as the first camera in the world to integrate into the camera slide since version S1000pj back in October last year. Until now it has additional updates S1100pj with improvements such as touch screen, projector brightness and greater than can be projected from an external device (such as a computer via USB port).

You can find this camera in Amazon: Nikon Coolpix S1100pj 14 MP Digital Camera with 5x Wide Angle Optical Vibration Reduction (VR) Zoom and 3-Inch LCD and Built-in Projector (Black)




2. Sony Cyber-shot DSC-TX9

Unique features: cast machine to capture 3D Panorama.

Advantage: 3.5 inch touch screen, slim design, lightweight, wide-angle to 25mm pipe.

Disadvantage: The buttons are too small and the zoom button a little hard to adjust, in the angle 25mm tube distortion, some images tend to be handled a bit too hands.

Reviews: DSC-TX9 still a worthwhile version of the fashion and more advanced customized features.

You can find this camera in Amazon: Sony TX Series DSC-TX9/H 12.2MP Digital Still Camera with "Exmor R" CMOS Sensor


3. Fujifilm FinePix Real 3D W3

Unique features: 3D photography and filming.

Advantage: Picture quality good 2D and 3D, 3D high-resolution camera, support of 3D content through the HDMI port to display the 3D TV, more customized imaging.

Disadvantage: Zoom a short, loud and crude, 3D desktop does not fit many people.

Reviews: FinePix Real 3D camera W3 deserves two unique lens keep up with the current trend of 3D. Furthermore, image quality in both formats are every good.

You can find this camera in Amazon: Samsung ST600 - Digital camera - compact - 14.2 Mpix - optical zoom: 5 x - supported memory: microSD, microSDHC - purple


4. Samsung ST600

Unique features: Two LCD screens (one front, one rear).

Immediately after the launch last year, the ST550 has emerged as an independent hit the market with front screen makes shooting themselves or attract the attention of young children. So far, only Samsung is also still maintain this design on the market.

You can find this camera in Amazon:Sony TX Series DSC-TX9/H 12.2MP Digital Still Camera with "Exmor R" CMOS Sensor


5. Fujifilm FinePix Z800EXR

Unique features: hybrid system features and functions automatically identify animals.

Focusing System will automatically select the type of focus on the contrast  or by choosing the type AF phase  which is used on a DSLR to push faster.

Basic parameters of this version:

Resolution 12 million pixels.

5x zoom (36-180mm).

3.5 inch LCD touchscreen.

Video capture 1280 x 720 pixels @ 30 frames per second.

SD / SDHC.

Size / weight 98.1 x 59 x 20.3 mm / 141 grams.

You can find this camera in Amazon : Fujifilm FinePix Z800EXR 12 MP Digital Camera with 5x Periscopic Optical Zoom and 3.5-Inch Touch-Screen LCD (Red)

LG Optimus One reviews - Good smartphone for people love Android

Property Android 2.2 in the midrange price segment, LG Optimus One P500 is expected to be major competitors with the same many model range.


Start to join with GW620, followed by Optimus GT540, but with Optimus One, LG really into competition with the name on the popular smartphone segment.

If the luxury goods group, LG does not have a dominant model, the Optimus One that appears to be as uncomfortable with rival Acer, Sony Ericsson, HTC ... Manufacturers also have Android phone in the price range.


Also, Optimus One is running Froyo phones with good price, sturdy design and full ownership of many connection other advanced phones. In return, the small screen, medium speed is reduced to machine joined common goods.


Here are some notable features of the LG P500 One Optimus.

• 3.2 inch screen, capacitive touch, multi-resolution HVGA 320 x 480 pixel, TFT LCD technology.
• 4-band GSM support, 3G connectivity with HSDPA 7.2 Mb / sec
• Processor speed of 600MHz, 512MB RAM
• Android 2.2 Froyo
• Connectivity: Wi-Fi b / g, integrated Wi-Fi hotspot functionality, GPS with A-GPS
• Digital compass
• 3 Megapixel camera with auto focus, face recognition, smile, geotagging
• MicroUSB connector, 3.5 mm headphone jack, microSD card slot with 8GB card included
• Support video format DivX / XviD

Design
 
Machine made of plastic shell, the surface looks quite soft, smooth, but sturdy when holding, no leaving  fingerprints as many mobile plastic. Wrapped around the rim 4 edge is a sturdy metal lines, in which the buttons, ports are arranged solid hold.

One is the front of Optimus capacitive touch screen, 3.2-inch wide multi-point resolution of 320 x 480 pixel HVGA, quite bright and clear, better than many phones screen with touch Games prices by enough resolution to see the contents without aliasing. LG LCD technology uses ordinary.

Bottom of the screen, there are four buttons used by the Android operating system, however, Home and Back buttons are wrapped around in a metallic mirror surface, while the Search button and menu is separated into two sides.

LG rather save buttons for Optimus One by this factory only equipped with a volume up button on the right is the top. In addition, this model is equipped with microUSB port on the bottom and 3.5 mm headphone jack on top. Camera with 3 megapixel no flash of Optimus is alone in the back, under a lower surface grinding of metal, rigid. With dimensions 113.5 x 59 x 13.3mm and weighs 129gram, Optimus compact enough to hold in their hands, and shirt pocket.

Features
 
Visible, equip with the most highly Optimus One form is the factory preset Froyo Android 2.2. Not many other phones in this price range was updated to the new OS version of Google. With Froyo, users can experience the many features, especially in better performance and integrate Microsoft Exchange.

One is a smartphone, Optimus richly connected. This model supports HSDPA, Wi-Fi and Bluetooth. In fact, your Web surfing speed very quickly, both 3G and Wi-Fi, but can not be compared to model high-speed 1GHz.

It also integrated A-GPS, which allows applications using the Google Maps navigation map or maps that LG installed. However, the version we test, in some locations, wave speed is slow and GPS to locate long. We sold the commercial version, not seen many people complaining about this feature.

If anyone who uses Optimus GT540, may feel little real money on your keyboard stripes, with the traditional numeric buttons, then this model has improved, though still a little confused by the small screen. Users can select LG digital keyboard, or a full QWERTY characters with more options for displaying characters. Property capacitive screen, but not slippery, sliding, Optimus One touch right support and preparation.
Interface, from Android 2.2 Froyo, LG has a few small changes to increase the convenience for users.

Home screen is allowed to slip away into the icon level, however, standing below the Menu bar look much more intuitive than the four icons is a call, Contacts, messaging, browsing on both sides, between which go to the main menu with four dots, the other with an arrow Android is another slip up.

In the Main Menu, LG had collected applications to be downloaded from the Market on a separate section below. This is a lot different than other Android phone, which allows users to search more quickly, especially when the mobile is a lot of software installed.

In addition to Android Market, LG also equipped with a time applications for this device is called App Advisor. In essence, this is just a list of indicative utility, once installed, the machine will automatically link to the Android Market. App Software Advisor at the opening, will search the area of the country where you live.

3 megapixel camera support One of Optimus autofocus mode, but computer models have no LED flash light. The photographs are of moderate quality, enough for users to record the basic moments, share them with others through Facebook, Yahoo ...

The entertainment features are not strong One of Optimus, but users can still listen to music, catching a good wave radio. One noteworthy point is this model supports Xvid video formats, dvix code without having to transfer the high-definition video files.

Performance
Next to the screen with high resolution HVGA, prominent than QVGA  of multiple devices same price, this model also has pace, 600MHz, RAM up to 512MB. This gives the machine the ability to handle relatively stable, however, some applications like games Angry Birds also have time delay, however, tasks such as zoom, open the utility, surf web can accept .

1500 mAh battery on a good, regular use of facilities such as surfing the web, facebook updates, as well as voice, IM, open email, about 1.5 days to recharge. Meanwhile, normal use, less connected, more entertainment, you can use more 2 days.

Regarding call quality, Optimus One for quality rather, no wave phenomena dropped or missed, even where the cell is relatively weak wave.

Sound machine is not large, but relatively clear. Meanwhile, enjoy through headphones for better quality, meeting the basic entertainment, music, even though the effect was small.

Competitors
 
Sony Ericsson Xperia X8

Have lower prices, X8 from Sony Ericsson owns Timescape interface looks slick, plus many paths designed like seniors X10 did look more attractive  Optimus One model. Besides, the X8 can tell the same 600MHz speed, and take pictures quite entertaining.
However, the machine running the Android 2.1 (recently upgraded), smaller screens and other accessories not rich like Optimus One.

You can find this mobile at Amazon: Sony Ericsson XPERIA X8 (E15i) Unlocked GSM Android Smartphone with 3MP Camera, Touchscreen, Wi-Fi, Bluetooth and GPS--International Version with no US Warranty (White)

Samsung I5700 Spica Galaxy 

 Spica is also a model run Android 2.2 (the upgrade), 3.2-inch computer screen, and  many good software.
Both have their own strengths, the design of the Galaxy Spica somewhat troubled than Optimus One, smaller than the RAM, but 128MB is AMOLED display, support for brilliant display.

You can find this mobile at Amazon: Samsung Galaxy Spica GT-I5700 Black Unlocked

Acer BeTouch E400

Features and equipment of the E400 is almost no difference with Optimus One as RAM 512, a full connectivity, 3.2 inch screen, HVGA, 3-megapixel camera. However, the interface is pretty simple machine, the device has only 1100 mAh battery.

HTC Wildfire

Wildfire smartphone from a big brand and professionalism in the interface layout, entertainment with 5-megapixel camera, so the machine has a higher price.
Optimus One outstanding characteristic of the new operating system, HVGA screen displays detailed and beautiful.

Motorola backflip MB300

Motorola's backflip with a full QWERTY keyboard design with fold back looks quite unique. Computer ownership camera 5 megapixel, LED flash, these are parameters than Optimus One. In return, the ownership model has a simple interface, the old operating system, besides the speed of your RAM is less than the Optimus One.

You can find this mobile in Amazon : Lg P500 Optimus One Android PDA 3.15 Camera Mobile Phone 2gb (Black) - International Version w/ No Warranty

Canon PowerShot G12 reviews- wise choice for you

The next version of the G11 uses 10 megapixel CCD sensor, DIGIC 4 processor, 5x optical lens and LCD screen can rotate the flip.

Canon Powershot G12, the next version of the G11, the latest model in the line of "shooting" high-end G-series. It uses a 10 Megapixel CCD sensor, DIGIC 4 processor (High Sensitivity System), 5x optical zoom lens (equivalent focal length 28-140mm on a 35mm film camera). Real image stabilization eliminates blurry pictures up, the LCD screen is 2.8 inch 461,000 pixel can flip-rotate port HDMI video quality with compatible users (HDMI-CEC) and the ability to save images RAW + JPEG format.


The G12 includes improvements on the model disk controller, in front of the camera body, similar to Canon EOS Digital SLR line, the filter support the FA-DC58B conversion, allowing users to configure the Auto-ISO to the 1 / 3 stop , catching feature automatically detects and balanced electronics, the ability to customize rate images (including 4:3, 3:2, 16:9, 1:1, 4:5), shooting HDR and Smart Auto automatically selects one of 28 shooting situation and the default mode Eye-Fi connection. Besides, the standard VGA video mode on the Canon G11, G12 upgrades on income up to HD 720p stereo and  functional Miniature effects while recording.


Overview Canon G12.


Advance


- Folding rotation screen .

- Good design.

- Firm hand-held .

- There is a rotation adjustment ISO - EV.

- Easy to handle first rotation.

- A reasonable range of focus.

- Image Stabilization system well.

- IS system combines error correction edge and angle.

- Good macro mode.

- Support for RAW format, shoot a short time compensation.

- Works well in low light conditions.

- Easy to use menu system.

- My Menu can be easily installed.

- Customizable rotation mode is on.

- Show color accurately.

- Continuous JPEG shooting faster than G11.

- HD Video 720p with stereo.

- Less noise than usual.

- Use a lot of accessories.

- Optical Viewfinder.

- I-Contrast adjust the light / dark.

- Lot size AF.

- Zoom AF points.

- Detect AF.

- HDR mode.

- Good flash recharge time.

- True plug external flash hotshoe.

- Long battery life.

- Detection mode and the timer face.

- Support SDXC card.


Disadvantage


- Size large, thick, heavy.

- Controls are relatively hard.

- Actuating the shutter button and zoom.

- Set normal time.

- Optical Viewfinder coverage is low.

- Distortion at wide angle a lot.

- The average chromatic aberration at wide angle.

- Blur the average angle at wide angle.

- No noise reduction options.

- No optical zoom while shooting video.

- Flash automatically makes the camera more slowly.

Design.

Front layout editing mode rotation below the shutter button. Besides the lens is auto focus assist lamp / self-timer, viewfinder and flash the right (not the flash and and very close to the lens design should be easy to cause red-eye). Beneath the lens is the key to change the rotation pin and adapter for Teleconverter or filter 58mm. Bottom of the machine design the battery compartment and memory card with a large lid, convenient operation. Threaded tripod in the middle of the bottom but not coaxial with the lens. LCD lid is on the left speaker, the opposite side of the design of an HDMI port, remote control, AV with plastic cover.


Above the G12 is the custom mode: the shutter button located on the actuating zoom, easy to use. Power button with blue LED status indicator machines enabling / disabling. ISO is a rotation correction to one-third stops with custom mode above, together with orange LED indicator on the left and ISO modes are used, round face with EV adjustment via hotshoe 5 points exposed just above the viewfinder.


The back of your PC screen LCD 2.8 " resolution 461,000 pixel, optical viewfinder with 2 status LEDs located on the right, followed by the Playback button, set within short-sighted / long-sighted to the left then to Shortcut button / Direct Print. On the top right button is AE / FE lock, down a four-way navigation keys, with a rotation on the custom, in the middle of the button Function / Set. around the four other buttons: AF Frame Selector / Erase, Light Metering / Jump, Display and Menu. Dual function of the navigation of Up / Manual Focus, Down / Self-Timers, Left / Right Macro and / Flash.


The custom mode.

Basically, the Canon G12 with custom functionality through the roundabout. For example in the manual mode is possible to adjust aperture and speed through 2 roundabouts Control / Front. In the shooting aperture priority, second rotation function on the opposite change. However, users can change the functions accordingly.


Shortcut buttons to adjust the functions include Unassigned, i-Contrast, White Balance, Custom White Balance 1, 2 Custom White Balance, My Colors, Bracketing, Drive Mode, Flash Exposure Compensation / Output, ND Filter, Aspect Ratio, Raw or JPEG, Image Size / Compression, Quality Movie, Servo AF, Red-Eye Correction, AF Lock, Digital Teleconverter and Display Off.


Lens.


Focal length of the Canon G12 is 6.1 to 30.5 mm (equivalent 28-140mm on a  film 35mm) for 5 times magnification. Machine focus from about 5cm to infinity at wide angle and 30cm to infinity when the zoom all sizes. Macro focus mode for about 1 to 49cm. Also can auto-focus for about 1 cm to infinity.


At the corner, sharpness of detail may seem soft on the whole focal range. When shooting wide angle, the phenomenon of chromatic aberration is well controlled, distortion is somewhat higher than normal embodied in the line, but still within acceptable limits.


Shooting modes.

Full manual.


Roundabout of the front machine also adjust the shutter speed and ring adjustable aperture. This is one feature makes the names of senior shooting line G-series. Aperture of the G12 allows for adjustment of about f/2.8-f/8 f/4.5-8 when shooting wide angle and distance, and speed is from 1/4.000 seconds to 15 seconds.

Program.


Program Shift function when the AE Lock button is pressed and rotated at the controls, digital display aperture and speed up the display.


Auto (or Smart Auto).

Allowing automatic identification of shooting situations and optimization options, face detection auto focus and find fault.


Lowlight.


For small image size 1824 x 1368 pixels at high ISO, minimizes blur caused by vibration or motion.


Quick Shot.


Pressure parameters and aperture when shooting speed respectively, using the LCD screen to quickly change options. These options include shutter speed, EV, White Balance, My Colors, Histogram, Self-Timer, Aperture, Flash EV, AE lock, FE Lock, Aspect Ratio, ISO Speed, Flash Mode, i-Contrast, Image Type, Image Quality , Image Size, Drive Mode, Camera Orientation, Image Stabilizer, Recordable Shots, Battery Charge, Red-Eye Correction, Date, Eye-Fi transmission.


Scene.


Including Portrait, Landscape, Kids & Pets, Sports, Smart Shutter, Super Vivid, Poster Effect, Color Accent, Color Swap, High Dynamic Range (HDR), Nostalgic, Fisheye Effect, Miniature Effect, Beach, Underwater, Foliage, Snow, Fireworks, and Stitch Assist.


Movie mode.


Canon G12 with HD 720p24 video recording capabilities with H.264 format and stereo sound effects Miniature Effect, Color Accent, and Color Swap, but only use digital zoom.


Menu system.


System of the Canon G12 engine is relatively easy to use, especially for those who use your PowerShot line. Users can use the main menu via the Function button or press the Menu button, with the card function and a list of choices.


Storage and battery.


Canon G12 camera can use SD / SDHC / SDXC / Eye-Fi / MMC, MMC + and HC MMC +. With 4G memory card storage, users can store about 1,400 photos rate 4:3 or 25 minutes a HD format video 1.280x720.


It uses a lithium-ion battery NB-7L (7.4 V; 1.050mAh) that captures 370 pictures in the status screen on, or standby mode for 7 hours continuously.


DIGIC 4 image sensor.


DIGIC 4 image processor uses algorithms to minimize false color, still light, long exposure noise reduction as well as when shooting at high speed, and display high-definition signal on LCD screen. Identification technologies such as context capture, advanced video features, face detection and motion are also integrated into the DIGIC 4.

Photo zoom from 28mm to 140mm from the G12.

At wide angle (28mm), G12 for a good photo results, the average blurry in corners, especially compared to the lower left corner in the center. At the 140mm focal length, better image quality, sharp corner only slightly blurry. The computer can evaluate the image quality is quite good.


G12 distortion at higher than average when shooting at wide angle (0.9%) and almost did not appear when shooting telephoto.


When shooting at wide angle, chromatic aberration in the average number per pixel, although not easily seen with the naked eye. When shooting telephoto, though less distortion, but easy to find the wrong pixel color to red and blue.


Saturation on the G12 performed well, however, the region dominant color such as red, green, brown and blue is the color of the medium over saturation. Bright yellow, blue lost a little detail. Background color to show through the color shift, for example, from blue to blue, orange and red to yellow to green. Light skin color are shown correctly, but is a bit cold, while the dark color shown is the warm, golden mean better.


For outdoor shooting modes like this, the machine works well under conditions of strong sunshine, a good reproduction of detail, although the relatively high default contrast. Need average exposure compensation (+0.7 EV) model to keep the skin should be light brown highlights on the shirt and flowers. Good color when using auto white balance, tone images of cold air when shooting portraits. Contrast can be customized to show better shadows.


The test images retain higher resolution details from 1,400 to 1,500 line for approximately 1,700 line JPEG and RAW images for viewing on your computer. If you use Adobe Camera RAW RAW image analysis taken from the analysis, the resolution is increased to 2600 to 2700 line.


Machine reproduce fine details in the ISO 80 to 200, there appear traces blur at ISO 400. Yellow and purple noise appear at ISO 800 in dark areas. Increased noise reduction at high ISO means less detail. However, image quality can still get above average.


In fact, at ISO 80 to 100, good print size 16 x 20 inches, good sharpness but still lost slightly. Color and edges show good. So at this ISO, so printing at 13 x 19 inch size.


At ISO 200, 13 x 19 inch prints for good detail but still appears in the shadow noise.


At ISO 400 images in the same size as the still used even though it was lost and noisy, so be reduced to 11 x 14 inches.


ISO 800 images are soft at 11 x 14 inch size, but not too much noise. However, the reduction in size 8 x 10 inches better.


At ISO 1600 and ISO 3200, good prints in sizes 5 x 7 inches.


Thus, to assess the quality of printed images from the G12 as well, showing the colors match, the more dark areas showing good to make up ISO, image size reduction.

You can see more detail this camera in Amazon : Canon G12 10MP Digital Camera with 5x Optical Image Stabilized Zoom and 2.8 inch Vari-Angle LCD

5 models 2D LED most prominent in 2010

Sony  NX800 and Samsung C6900  is the  LED with prominent form of design, while the Sharp model LE820 impressed at the technology Quattron "billion colors."

In 2010 saw the widespread use of model HDTV  screen with LED technology. This year, Samsung, LG and Sony continue to increase the number of its LED model, while Panasonic, Toshiba .... also introduce products using LED screen HDTV in the first. In addition, Sharp also particularly impressive when Quattron LED TV launched the first line in the world with the ability to recreate the state billions of different colors, making images come alive and more realistic.

Here are 5 models 2D HDTV use LED technology of the most prominent in 2010 through our evaluation. The order does not reflect ranking.

Samsung C6900

Although a 2D model but C6900 own slim design and stylish design with X-shaped base made of shiny metal as the 3D model of the Samsung C7000 and C8000. Although not possess the ability to perform well but the sample image will remain segment LED products and expensive high-end manufacturer of  Korean TV.
Samsung C6900 is equipped with LED edge lighting LCD display with a resolution of  1920 x 1080 , property 100Hz scan speed comes with the features Dolby and SRS Pulse Theater Sound help simulate surround sound effects are quite impressive. In addition, features Internet @ TV also offers users a series of TV applications and online services useful, is provided free.

Sony Bravia NX800

As the C6900, the first impression in the form of Sony LED NX800 is in style. Monolithic style design that gives the Sony Bravia HDTV slim design, fashion, but strange and different from most other slim TVs are available in the market. The screen is coated with a glossy mirror does not make sense to border edge. This design can help break the TV after about 6 degrees tilt and comes with a base as long dock is made of metal.

Although not equipped with 3D features, but Sony NX800 also apply the technology's most advanced 2D images such as scanning technology Motionflow 240 Hz, light sensor Generation Light Sensor, along with the screen edge lights LED Full HD 1080p support and Bravia Engine 3.


Toshiba Regza XL700

Although the model is Toshiba's first LED but the XL700 is one of the HDTV 2D model won the hearts of many users from design to image quality. Substitute for polished style in the old LCD, new Toshiba's LED models use styling rugged and modern. The edges are beveled diagonal screen on the outside comes with long strips of metal to create focal points.

Located in the high segment's of Toshiba, of course, the product is equipped with many features trendy as the ability to transfer content multimedia DLNA, proprietary technology AutoView, Resolution +, comes with antenna reception techniques Digital services Web-based entertainment ... Comes, XL700 also owns Full HD resolution, image processor 14-bit color, 100Hz ClearScan technology and contrast up to 3.000.000:1.

Sharp Aquos LE820

If you talk about technology, the Sharp Aquos LE820 LED will be the most prominent form this year. This is a typical pattern for HDTV display technology Quattron manufacturer from Japan. With the added yellow to the basic RGB color filters, LED of the Sharp models have the ability to replicate and show the state billions of different colors, making images and vivid colors similar to realistic as possible.

With Full HD LED screen, 100 Hz scan speed, the Toshiba LED TVs are also equipped with surround sound system with SRS TruSurround HD 15 Watt subwoofer.

Contrary to Toshiba, Sharp design are now softening of the form of thin HDTV LED screen with a typical series at LE820. Shrug style of heavy and coarse LE700M or LB700M, LED LE820 Quattron own polished style, with soft edges and the four screen corners are not rounded, tapered design makes thin and neat.

Sony Bravia EX710

Not only do the TV is thinner than the size, strength in LED display technology is also in the energy savings compared to LCD or Plasma technology. And samples of Sony Bravia EX710 LED HDTV is a form to take advantage of the advantages that a most effective way. Model TV "green" quality of Sony is very low power consumption with only 63 Watt mode use (32-inch model), only two-thirds compared with many other LED of the same size.

LED technology gives EX710 design compact design and slim. Although not own borderless glossy display, but reducing the thickness at the edge of the screen helped EX710 borders become more beautiful and fashionable, but still retain strong design characteristics of the Sony Bravia.

On specification, equipped with TV screens Full HD LED edge, image processing system Bravia Engine 3, support wireless connectivity Bravia Internet Video, presence sensors intelligent automatic light adjustment monitor and save energy use.

You can find this products in Amazon. End of the year, Amazon bring more program for saving money for customers as .  Top holiday DEAL or Save on the 3D experience with bundles from top manufacturers: Sony, LG, Samsung, Toshiba and Panasonic will run promotions before year's end


Hope you can choice a products for your family in the Christmas and New Year. Cheer :)
 

+  Sharp LC40LE820UN 40-inch 1080p 120Hz LED Edge-Lit LCD HDTV

+ Sony BRAVIA KDL32EX710 32-Inch 1080p 120 Hz LED HDTV, Black

+ Sony BRAVIA NX 800 Series 52-Inch LCD TV, Black

+ Samsung UN46C6800 46-Inch 1080p 120 Hz LED HDTV (Black)