S
SJS
Hi,
I am using an FS4000US (new purchase) to scan slides and negs and I am
getting much more noise than I expected. This shows up as coloured
pixels in a dark area with a fairly even balance of each colour.
I am using Vuescan to drive the scanner and have scanned a black slide.
The slide has matt black tape on both sides. I set Vuescan to image
mode with exposure lock at 1 and no colour correction.
I expected the pixels in the raw file to be 0 or pretty close but find
that each of the colours can range from 0 to about 9 (24 bit raw file)
or from 0 to about 240 (48 bit raw file).
Can anybody tell me if this seems reasonable for this scanner. I can't
see the value in 14 bit colour resolution with such a high noise floor.
Thanks,
Steven
I am using an FS4000US (new purchase) to scan slides and negs and I am
getting much more noise than I expected. This shows up as coloured
pixels in a dark area with a fairly even balance of each colour.
I am using Vuescan to drive the scanner and have scanned a black slide.
The slide has matt black tape on both sides. I set Vuescan to image
mode with exposure lock at 1 and no colour correction.
I expected the pixels in the raw file to be 0 or pretty close but find
that each of the colours can range from 0 to about 9 (24 bit raw file)
or from 0 to about 240 (48 bit raw file).
Can anybody tell me if this seems reasonable for this scanner. I can't
see the value in 14 bit colour resolution with such a high noise floor.
Thanks,
Steven