M
Marcello Penso
Dear All,
I am just starting to scan for archiving purposes my 20,000 slides or so
and I saw that Vuescan 8.0 has 'analog gain' settings for Nikon
scanners. I've tinkered with those settings a bit and they can produce
dramatically different results in raw file scans, as opposed to the
exposure clipping setting or the long exposure pass setting, which seem
to have little effect on raw scans (at least looking at them through
Irfanview.)
I've noticed that 'auto levels' or 'white balance' color correction (in
a second pass to produce jpgs for contact sheets) has consistently
produced files which are a bit on the red side. I'm not sure whether
this is scanner related, monitor related, or Vuescan related, but I do
notice reddish cast in the raw scans. My next step will be to try
viewing the raw scan tiffs I've scanned already on another monitor to
see if this reddish cast is monitor related, since my 21" Viewsonic G810
is 4.5 years old.
I have a few questions:
Does long exposure pass produce noticeable differences in quality in
well lit exterior shots, or should I reserve that for underexposed
slides, or slides with strong silhouettes or dark (winter sunset
lighting) slides?
How does the exposure clip affect the exposure timing? I don't quite
understand the description in the Users Guide. Does this setting enhance
image quaility (color rendition) as well, or only affect overall
brightness of the raw scans?
Should the analog gain settings be used for known scanner deficiencies
in CCD exposure?
Is getting an IT8 slide recommendable for checking monitor/scanner color
calibration? I went to Wolf's site, but those slides seem film specific,
and I have slides with a variety of different films, a good portion
Agfachromes.
Any suggestions would be welcome. Thanks.
Marcello
I am just starting to scan for archiving purposes my 20,000 slides or so
and I saw that Vuescan 8.0 has 'analog gain' settings for Nikon
scanners. I've tinkered with those settings a bit and they can produce
dramatically different results in raw file scans, as opposed to the
exposure clipping setting or the long exposure pass setting, which seem
to have little effect on raw scans (at least looking at them through
Irfanview.)
I've noticed that 'auto levels' or 'white balance' color correction (in
a second pass to produce jpgs for contact sheets) has consistently
produced files which are a bit on the red side. I'm not sure whether
this is scanner related, monitor related, or Vuescan related, but I do
notice reddish cast in the raw scans. My next step will be to try
viewing the raw scan tiffs I've scanned already on another monitor to
see if this reddish cast is monitor related, since my 21" Viewsonic G810
is 4.5 years old.
I have a few questions:
Does long exposure pass produce noticeable differences in quality in
well lit exterior shots, or should I reserve that for underexposed
slides, or slides with strong silhouettes or dark (winter sunset
lighting) slides?
How does the exposure clip affect the exposure timing? I don't quite
understand the description in the Users Guide. Does this setting enhance
image quaility (color rendition) as well, or only affect overall
brightness of the raw scans?
Should the analog gain settings be used for known scanner deficiencies
in CCD exposure?
Is getting an IT8 slide recommendable for checking monitor/scanner color
calibration? I went to Wolf's site, but those slides seem film specific,
and I have slides with a variety of different films, a good portion
Agfachromes.
Any suggestions would be welcome. Thanks.
Marcello