Digital cameras tend to range in ISO between 100 to 1600 (for the Canons, a 1600 push to 3200). Recently,
I read an article at KenRockwell.com that tells you how to push a cameras ISO even higher.
Although this tip was for Nikon camera, on other digital SLR cameras. Here’s how you do it:
Pushing the ISO is more of a work around using your camera settings and a little post-processing.
When you want to achieve an ISO past 1600, set the cameras ISO to 1600 and then adjust the exposure
compensation. Adjusting the exposure compensation to -1 will push the ISO to 3200, a -2 pushes to
6400 etc... When you load your RAW images onto your computer for post processing, just adjust the
the exposure to +1 or +2, the opposite of your in camera exposure compensation. If you shoot jpg,
you can achieve the same result by adjusting the curves in Photoshop. Noise and image quality are
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