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Re: The solution to low light focusing


Outer Bamnks diving on the Great Escape Southern California Live-Aboard Dive Boat


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Posted by Chris on January 27, 2006 at 18:46:03:

In Reply to: The solution to low light focusing posted by Chuck Tribolet on January 27, 2006 at 18:27:09:

I use a focus light. It works great for macro, not so well for wide-angle. You also don't always have to to adjust a focus light's aim. The time to make many shots is short.
The correlation of low-light performance is to pixel size (photon collection area), not count. For the small CCDs used in most digital cameras the area per pixel becomes to small at the 4-5 MP limit. The smaller the pixels the larger the noise portion of the signal. The larger the pixel the better the signal-to-noise ratio and low light performance. The new Sony 10 MP camera works well in low light because it has a SLR sized CCD and big pixels.



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