[MF3D.FORUM:901] Re: Mount Colors

["don lopp" <dlopp@xxxxxxxxxxxxxxx>]

 Colors. I have used black  M F mounts before and I see no advantage.  Don.
To each his own::
----- Original Message -----
From: "Richard Rylander" <rlrylander@xxxxxxx>
To: "Medium Format 3D Photography" <MF3D.Forum@xxxxxxxxxxxxx>
Sent: Friday, June 30, 2000 9:21 AM
Subject: [MF3D.FORUM:885] Re: Mount Colors


>
>
> Sam wrote:
>
> > I'm sure I've asked this before, but I may as well try again. Is there
an
> > interest and source for mounts on black stock instead of white? I have
> > preferred black mounts for 7P stereo, but there hasn't been any produced
> > yet for MF. The reason I like then is it stops the mount from standing
out
> > from the image, especially if any stay light comes in from the top of
the
> > viewer.
> >
>
> I would be VERY interested in black mounts.  Minimizing the visibility of
the
> slide mount itself should greatly enhance the sense of immersion in the
> scene.  The effect will be best if the card stock is solid black rather
than
> just a surface color to eliminate any white line that would appear along
the
> edge of the die cut slide apertures.
>
> A book with very interesting comments about "image as object" and other
topics
> is "Eye, Film, and Camera in Color Photography" by Ralph M. Evans (at the
time
> of publication [1959], Director of the Color Technology Division at
Eastman
> Kodak).  The chapter 'Photographs as localized in space' talks about
several
> properties of photographs that have significant influence in perceiving
the
> photo as an objet itself, or as a window you look at other objects
through.
> Particularly intriguing was the description of a doubly curved projection
> screen that causes the eyes of a suitably located observer to change their
> relative positions while scanning the image, as though the screen surface
were
> at infinity (a predecessor of "Imax"?).  It was claimed that even "2D"
> pictures take on a "startlingly three dimensional appearance" under these
> conditions.  Even without this special screen, transparencies projected in
a
> completely darkened room provide the best sense of realism - and for hand
held
> slide viewers, the same effect would require black slide mounts.
>
> I thought it would be an interesting experiment to modify the light
> source/diffuser in a stereo slide viewer with appropriate masks to
> intentionally vignette at the edges of the image, further minimizing the
> visibility of the slide mount itself (again, requiring black slide
mounts).
> This might also make some slides with near objects that appear in one
window
> and not the other more viewable since the visual system fills in missing
gaps
> unless other cues (an obscuring slide mount) are present.
>
> The book cited above is unfortunately long out of print, but well worth
the
> effort to track down a copy in a library or used book dealer.  Many
aspects of
> photographic geometry, brightness distortions, and perception are covered.
> Given the vintage of the book, there is also a lot of information dealing
with
> stereo photography (much more popular in 1959 than now).
>
> Richard Rylander
>