From the G1 in 2000 to G11 in autumn of this year, Canon G Series unknowingly accompany with us 10 years.G11 gives us a good first impression is that – flip screen come back! Exactly say that flip screens disappeared from the Canon G6, in the after the G7, G9, and G10, finally resurrect in G11. Canon PowerShot G11 used a small 10 million pixel sensor. Compared with G10, G11 cost nearly five million pixels, in exchange for a more powerful ability to control noise.

Full manual exposure mode, the button body surrounded by dense classical ,28-140mm focal range of high-quality lens, practical “dual noise reduction” technology. In the G11, the Canon finally out of the high-resolution, big zoom and other “stereotypes”, forward with the goal of a low-noise and high-quality flagship of DC.

In the overall appearance, Canon PowerShot G11 basically followed the style of the G10, but at the corner handling, G11 a bit less angular, more rounded. In working, the flagship Canon G11 will undoubtedly have the highest level of small DC, wide body is similar in size with some have been Micro 4 / 3 type single-lens reflex, you can feel a good texture when griping in the hands.

A lot of users quite please with the flip LCD on the G11. A 2.8-inch, 46-megapixel hardware parameters of the camera in this grade can be said that there is no counterweight. Compared with Canon SX20 IS 23 million pixels on the flip screen, G11, 46 million pixel screen is no doubt to be fine. In the flip way, G11 is the same as other Canon cameras which use of flip LCD.

Canon G-series camera has a very powerful battery life. G11 also uses the same level camera batteries like SLR, although the NB-7L can not be directly inserted in the EOS SLR cameras, but the 1050mAh, 7.4V for the ultra-large-capacity Canon G11 has a very strong endurance. After the G11 in a single charge you can shoot a lot of photos, and refeo to specific shooting situations, if you do not open the flash, G11 with at least 550 of the endurance capacity, if less open the flash, then the G11 take more than 400 photographs shot is absolutely no problem.

Canon G11′s lens ring although not like the S90 to rotate, but we could be screwed down so as to install a variety of additional mirrors. Of course, the price of G11 attached mirror is very expensive, and even set up the camera’s optical image stabilization mode before and after installation .

Canon G11 has a new features fast shooting mode, in this mode, the camera will not use the LCD viewfinder in favor of single-lens reflex cameras, as did the use of the top of the optical viewfinder for composition. The so-called fast-shooting, in this mode, we can use G11 to complete a faster focusing shooting.

In turn the camera’s rapid shooting mode, the screen becomes the SLR like interface, only the shooting parameters, and the viewfinder does not show the contents. At the same time, Canon G11, conduct real-time focus, in order to fast shooting. Canon G11 also supports single-lens reflex cameras, as well as the common single-servo AF auto-focus in the process of AE metering, which enable us to capture moving objects more handy. However, compared to single-lens reflex cameras, G11 in the Servo AF accuracy on the reaction rate still has some gaps.

Canon G11′s sensitivity dial up the sensitivity is only available to the ISO3200. For DC, this level of sensitivity has been finished basically able to meet daily needs, but G11 which with a “double noise reduction” technology, there is another feature to improve sensitivity. In the camera, there is a low-light mode, in this mode, the camera’s sensitivity will be controlled at between ISO320-ISO12800. And in order to better control noise, this time around recorded with 2.5 million pixels. However, when the sensitivity is automatically adjusted to the ISO6400, the pictures that took by Canon G11 bare already out of the high-quality areas.

Canon G series incorporates a lens with high optical quality, while the continuation of the classic from the G10 design in 5 optical variable G11 also be complete with him. In the wide-angle end and telephoto end, Canon G11 camera showed a top resolution for the ability, as a 10 million pixels DC, G11 imaging capability over the actual number of 12 million-pixel products. Especially in the telephoto end, G11 up to 2200LW/PH results have also been more than four-fold or even three times as many low-magnification optical zoom camera. Canon G11 at F5.6 will be able to show when a hexagonal star Mount effects, and even bright direct injection lens, the camera photos are no spots, fogging and other negative phenomena.

Thanks to “Double Noise Reduction” – large-size sensor noise + DIGIC4 processor noise, Canon G11 has a better ability to control noise than G10. Especially in ISO200 or less, we are even in the larger photo under the premise of the camera almost do not see a decline in quality. As the sensitivity to ISO400, Canon G11′s image began to appear slightly fuzzy noise and detail. The ISO800, although there have been visible quality declined, but compared to other consumer-level cameras, G11′s ISO800 photo has a very high availability.

When the sensitivity up to ISO1600 and ISO3200, apparently even a double noise reduction technologies can not stop the G11 image quality dropped significantly. But this time the pictures did not appear mottled, so after reduce the size of the photos are still good.

Summary
Classical Return
Speaking of G11, the first is reflected on the word “return”, have to say, Canon G11 is a classical return product. After a pixel size of a strong return after the upgrade flip screen, low-pixel density, return to high-quality CCD sensor, and has been done before the manipulation of customary shape and … … before substantial price cuts of the SLR, once vested with the high-end DC, seems to come back!

Breakthrough Innovation
G11 is a “breakthrough” camera, first of all, it broke through the high-resolution, large zoom ratio of the cycle. Dare to abandon the mentality of the pixels on the radical, dare not to use large zoom lens choices than high-quality imaging. Of course, in G11, we have not seen a practical high-definition camera function, it would be a sort of a small regrets. But in the G11, we still see some breakthrough to the camera market hidden rules, in particular the negative effects from some of the quality of the “hidden rules” (for example, more and more high pixels).

Unique Positioning
While the G11 is available now, we see the classic Canon G10 still do not withdraw from the market, not even reflect the slump. The coexistence of two generations of Canon’s flagship DC looks unreasonable, but the G10 and G11 are respectively represent two different pictures of style trends – high-resolution photos and high ISO low noise pictures. This is not only the Canon G11′s unique positioning, but also the main reason for a lot of canon fans pursuit this camera.
Advantages:

noise-control;
Lens optical quality of the superior;  Well-structured professional,
sophisticated manufacturing processes;  Flexible operation, fast, battery durability

Disadvantages:

does not have the high-definition camera function,
too large ,
general portability

iPhone OS 3.1update was released earlier this month.Although it has increased some functions to iPhone,recently, many users still find a side effect: battery life is ability to reduce.

Some complaints from users to Apple’s offical after iPhone OS 3.1 installed. There is a noticeable decline in battery life. Now , Apple has begun to investigate it.

The company’s customer care department’s recent initiative to telephone contact with these users, asked them 11 questions about the use habit, including WiFi, Email, Bluetooth as well as the App Store software. It is hoped that find reasons why decline in battery life.

In addition, Apple also offers these users  iPhone settings file called “Battery Life Logging”. It can use in real-time record of the battery power status, and synchronize preserved in your phone while users installing the file. Users need to send these files to Apple for analysis.