> I have been trying to decide on which 35mm film scanner to buy for
> I would like to know which are the advantages of a 12 bit color depth scan
> versus a 10 bit,
> considering that the image file has 8 bit color depth in photoshop.
> Best regards,
The 12 bit scanner is theoretically capable of a greater dynamic range
than the 10 bit (you would need to check the manufacturer's specs to
find out if this is actually so.)
Although most image formats and packages only support 8 bit colour, the
extra bits the scanners uses allow you to better tune exposure etc at
scan time - so you decide what data is lost, rather than the limitations
of the hardware.
In practice, a greater dynamic range will allow for better highlight and
shadow details in your scans.
Kym ap Rhys