Re: Nikon8000-MF glass-covered holder

["Dave King" <kingphoto@xxxxxxxxxxxxxx>]

Hi Tom,

I'm with you on all counts.  I tried scanning another photographers film
recently that had been "handled" a bit, and it couldn't be adequately
flattened with the standard holder no matter what I tried.  Fortunately most
of my film has been "pampered", but I've come to the conclusion that a glass
holder of some type is a requirement with this scanner if you're seeing a
variety of things.

I haven't used it myself yet, but it seems the Nikon holder you refer to is
the best readily available option.  The rotating feature is to "square" the
film before inserting into the scanner, so no need for rotating 500 meg
files in Photoshop, which can be a PITA for more than one reason.  Newton
rings can be avoided by using mask overlays, which are provided I think, or
they can be made fairly easily.  There is also anti-Newton glass
incorporated, so this step may not be needed unless humidity is excessive.

There is also a very interesting design by Ernst Dinkla you could consider
if you're a DIY type.  It's a little beyond me, but I'll pass the link
along, you'll find it interesting in any case:

http://members.chello.nl/e.dinkla/MF_FM_carrier.htm

Dave


----- Original Message -----
From: "Tom Andrews" <tandrews@boulder.net>
To: "Scanner List" <scan@leben.com>
Sent: Thursday, June 06, 2002 1:44 PM
Subject: Nikon8000-MF glass-covered holder


> Hi!
>
> I own a Nikon 8000 for 6x7 color transparency scanning and in general am
> quite pleased with it.  I use the scans to make 20x25in prints on my Epson
> 10000 and get great detail, etc., from the scans.  However, let's say
10-20%
> of the time, my scans are unusable because the film was not flat enough to
> give good focus.  I find the film stretching feature of the MF holder to
be
> very fussy.  I have subsequently learned to tell lack of focus by doing
> several focusings in different parts of the color transparency and
comparing
> the focus numbers.
>
> The glass-covered rotating holder has been recommended to me and I am
> seeking further comment.  I suspect that the focusing problem would be
> solved by the holder, but am concerned whether the extra two sheets of
glass
> will degrade the scan in any way or create newton rings or other
artifacts.
> And whether I can expect the glass carrier to last for a long time given
> reasonable care.  Does anyone in this group have experience with the
> glass-covered holder?  Also I can't really tell what the "rotating"
feature
> is all about and why I should buy this one (as recommended to me) rather
> than the less expensive regular glass-covered holder (or if I should
> consider either of them).  Many thanks,
>
> Tom Andrews
> www.wildlandart.com


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