profiling Minolta 5400
profiling Minolta 5400
- Subject: profiling Minolta 5400
- From: "Alan Rew" <email@hidden>
- Date: Tue, 25 Nov 2003 12:18:23 -0000
On Mon, 24 Nov 2003 16:04:05 -0500
Armand Rosenberg <email@hidden
<
mailto:email@hidden> > wrote:
>
I just did some profiling of a Minolta 5400 film scanner. I was surprised
to find that I had to
>
leave the Auto Exposure ON in order to get a decent profile (both when
scanning the target
>
and when scanning the transparency afterwards). With AE off, the scans are
very dark.
>
I am puzzled, because it suggests that some internal adjustments occur
during the scan.
>
The initial profiling results are pretty good, though. These are all
16-bit scans. Any thoughts?
I'm not an expert in this field but I've tried both approaches to profiling
(automatic and fixed settings) and I know what works for me.
My experience with a Nikon film scanner as well as an Epson flatbed is that
'automatic' settings are not good practice when profiling. The results are
somewhat unpredictable. You can spend hours trying to correct subtle colour
problems.
Unfortunately the supplied Nikon and Epson software can be hard to use when
profiling. I have found that using third party software to nail down the
scanner settings when creating the profile from the IT8 (and, of course,
when doing the actual working scans) produces far better results in terms of
colour matching. There's just no comparison between the two.
In my case I use VueScan to nail the scanner behaviour; other people have
achieved success with SilverFast. I'm not familiar with the Minolta
software.
Ian Lyons' site has a good article on optimising scanner behaviour in the
context of IT8 based profiling:
http://www.computer-darkroom.com/gamma/gamma_1.htm
<
http://www.computer-darkroom.com/gamma/gamma_1.htm>
After following his advice I have achieved very good results. Of course if a
slide is poorly exposed then the results won't be optimal whatever you do.
But, given a well-exposed slide, the results from a properly calibrated and
profiled film scanner can be very pleasing in terms of how close the colour
is to that desired when viewed in PS.
If the Minolta software does not allow gamma and brightness/exposure
adjustments to be set then maybe you can consider third party software for
your scanning.
HTH
Alan
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