"Herb Chong" <[EMAIL PROTECTED]> wrote: >once in 8 bit mode, converting back to 16 won't regain the >lost information.
Right. But it's worth mentioning that if you're doing major levels adjustment, it's best to work in 16-bit mode and then convert to 8-bit for printing...even if that means converting an 8-bit image up to 16 and then back to 8 after the adjustments are made. Gives a better result in most cases. >you are extracting from Canon RAW files though, right? it's stored >internally as 12 bits i think. I think you're right about this. 12 bits (probably even 8) should be fine as long as your scene doesn't have really huge dynamic range - assuming you use your histogram to get the exposure right. -- Mark Roberts Photography and writing www.robertstech.com