35mm Scans
35mm Scans
- Subject: 35mm Scans
- From: "Michelich, Lawrence 6570 KEN HUS" <email@hidden>
- Date: Fri, 2 Mar 2001 08:38:30 -0500
Subject: 35mm Scans
****on 2/28/01 3:45 PM, Pete Merck wrote:
> I suggested a drum scanner, but she dosn't trust oil
mounting because you
> can't remove all the oil and it can damage the originals,
hence the flat bed.
> Scans need to be high res possibly 100% at about 4000dpi
and output on a
> profiled film recorder.
****on 3/01/01 Terry Wyse responded:
Not to worry. There are "mounting fluids" (Camey fluid? sp?)
now that are not oil at all. In fact, the type I know of essentially
evaporates once the trans is pulled from the mylar and is fanned in the air
momentarily. As far as I know this fluid is totally non-destructive to the
trans. Of course, the carboard slide mount will get destroyed but it can be
put back into a plastic mount.
Contact me off-list if you'd like to be put in touch with a
prepress shop that uses this method for mounting on a Hell 3000 series drum
scanner. They've also profiled the scanner and are embedding the scanner
profile in the image.
I can also add testimony to Kami's line of scanning products. In our
scanning classrooms we use a collection of their products, including the
mounting fluid referred to in Terry's reply. They also are in wide use
throughout the Hell / Linotype-Hell / Heidelberg scanning community. Kami
offers a scanning kit which contains samples of many of their products. I
believe the national distributor is located in Florida but the following
website offers an international list of resellers.
http://www.kami-produkte.de/english/ <
http://www.kami-produkte.de/english/>
If there's a less than positive aspect of the mounting fluid, it would be
that its evaporation rate is too fast for some scanning applications, such
as super-gang scans. Unless, the mylar sheet is fixed to the drum allowing
for absolutely no air infiltration, the final scan areas may start to
evaporate before you get to them. This is a non-issue if you don't mount
dozens of 35mm's at a time. It's also, by nature, a bit more 'runny' than
conventional mounting oils, so off-line mounting stations are a benefit, but
not pre-requisite. A little care and a light hand in application of the
fluid will help.
BTW... your ICC profiling capabilities depends completely on the level of
software version in use on the DC3000 series scanners... I think version 14
gives both scanner calibration to IT8's as well as CMYK output profile
capability. However, many of our users simply use a job set such as H110-Dia
to produce a TIFFRGB scan to turn over to applications such as Linocolor,
Newcolor or Photoshop if you are committing to an ICC workflow. Keep in
mind, many of the rich CMYK scan features of DC3000 ChromaGraphs are
bypassed in such a workflow. You commit to the colorimetrics of the profiles
as opposed to massaging the CMYK data on a scan by scan basis. Not a bad
thing, but certainly different than what many of the DC3000 operators are
used to doing. It's 'Hang-and bang' as they say, and some will decry the
lack of craftsmanship for sake of production. Commitment is the key word
here. I'll talk to anyone off-line as to how we've circumvented some of
these issues with long-time operators, and made them still feel involved in
issues of color quality in their respective shops.
Ps. If done carefully, you can even open and save those cardboard mounts for
re-use, although the effort may not outweigh the simplicity of the plastic
mounts.
Lawrence J. Michelich
Instructional Content & Design
Heidelberg USA
Print Media Academy
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