CMOS or CCD what difference?

[Ghosthunter]

What is better?

Why do small pocket cameras like PDA's use CMOS over CCD?

Is it cheaper? Which is better quality?

Also how important is F-Stop if it is fixed?


Thanks

[poptom]

Cmos is newer, cheaper , and probably better overall particularly because of its lower power usage.

f-stop for a fixed focus lens has to be a compromise. A larger aperture (smaller number) lets in more light but has less depth of focus. Leave it to the designer to determine what's best for a particular product and its intended use. Cost would probabaly be the same. A fixed focus lens is not critically sharp at any distance.

Look here for CMOS vs CCD:
http://www.vvl.co.uk/whycmos/home.htm