High ISO image noise will be many more, this makes the creation stage, compression of the slower processor.
Users can change the shutter speed in several ways. (Photos: Hoai Anh).
Shutter Speed is always an important factor in photography, and people often improve this number by high-speed memory card, add grip or changed a different body. However, tests showed that ISO also CrazyLab actually affect the shutter speed.
The implementation of CrazyLab quite simple: use a Canon 600D and a recorded voice software shutter on your computer, then compare multiple times with different settings.
Compare the shutter speed at ISO levels.
The result is quite interesting in different ISO, shutter speed has changed. ISO increases from 100 to 12,800, the number of consecutive shots was reduced from 8 to 5 times, preparation time for closing the shutter next time also increased. Note that in all trials, the camera is to the MF mode, set exactly the same, just change the ISO.
The reason this occurs, follow the make, is because at high ISO levels, more noise will appear. This factor has a negative impact to the processor in the process of creating, compressing images for output. Therefore, continuous shooting speed and the speed first " load " the next time also decreased. In other words, growth is inversely proportional to ISO shutter speed.
In addition, the shutter speed test between RAW, JPEG, or between different memory card is also done.
Here are some results obtained.
Compare RAW format (above) and JPEG (bottom).
Comparison of memory cards in order from top to bottom: SanDisk Extreme HD Video, Hama 150x, Samsung Essential MicroSDHC, SanDisk Ultra II.
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