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Difference between revisions of "Key Camera Specifications Explained"
Key Camera Specifications Explained (view source)
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''Any mention about RAW format output signals products catering to professional users. High video resolution at high frame-rate video capturing abilities, such as 8k at 60fps, is an indication of a very good sensor capability. In most circumstances, a 4k filming at 60Hz or FPS should be available to the camera, at the minimum.'' | ''Any mention about RAW format output signals products catering to professional users. High video resolution at high frame-rate video capturing abilities, such as 8k at 60fps, is an indication of a very good sensor capability. In most circumstances, a 4k filming at 60Hz or FPS should be available to the camera, at the minimum.'' | ||
== Battery capacity rating in mAh == | |||
The initial battery capacity of a mobile device is essential for portability. The value reflects the maximum current than can be delivered by the battery for an hour, before it is depleted. Note that the current requirements of the device itself that uses the battery is not presented so battery capacity evaluation is essentially empiric. A battery has the best performance when new but slowly degrades in hidden ways as it ages. After a couple of years of intensive use, a rechargeable battery becomes non-functional and has to be replaced. | |||
The amount of energy required by the camera in different operating modes and on different products from the same manufacturer or others can be used as reference and nothing else. A larger battery capacity rating on a product class generally suggests a better performance as high power rating batteries are more expensive to manufacture. In general, a device is designed around a specific battery capacity so most products behave relatively similar in a product range from different manufacturers. Having a very large capacity battery or a high energy efficient device is costly to design and manufacture. | |||
Using the camera on video recording mode or frequent image captures with the screen set to high brightness can quickly drain a battery. This is even more important for devices that can be used in multiple ways, as in the case of a smartphone. Unless the smartphone is permanently powered when in video recording mode, the brightness should be reduced. Most applications cannot record with a closed screen which means that a long video recording will deplete the battery much faster. | |||
''Larger batteries help autonomy on products in the same range. Capacity alone cannot be a criteria to select or avoid a product but the battery technology being used and the available autonomy expressed in hours can hint at good designs, particularly for smartphones.'' | |||