Digital BW, The Print

On 05/01/2008 Robert Lee wrote:
> I've wondered if the coldish backlight on my scanner has trouble
> penetrating the orange mask well enough to give decent contrast,
> especially when contrast is low to begin with, and whether different
> films have variations in the orange mask that present more or less
> difficulty.

Better filmscanners increase the exposure (sampling time) in the blue + 
green channels to cancel the orange mask optically. Without that, a lot of 
dynamic range is discarded when you subtract the mask colour in software.

-- 
Regards

Tony Sleep
http://tonysleep.co.uk