P3D Protecting images, new a-n glass stereomount concept

[Jon Golden / 3D Concepts <3dman@xxxxxxxxxxx>]

Michael Kaplan wrote;
>>The red tape was crumbling, the film chips were covered with spots, and
>>- worse - the glass had developed micro-crazing that was visible in a
>>good viewer.
>>We decided to remove the slides from the glass and remount them in RBT
mounts (thanks, Jon).

Most welcome Michael..and this brings up a point which I will mention we
are working on at 3D Concepts...and that is the issue of developing
two-sided glass archival protection of images, via anti newton glass
stereomounts using the current RBT system.

Some innovative folks out there may have figured out that you can take two
RBT glass halves, which have a 23 x 33mm aperture, and use both sides, with
two pieces of AN glass to achieve protection for images on BOTH sides.
There are TWO limitations here at the moment.

1) The RBT glass halve has to be BLACK plastic (for masking purposes) and
currently  they come standard in white.  We have had a small run of them
made and shipped to the US, in ALL BLACK...for testing.

2)  The only size available now is 23 x 33mm, or the actual full frame
opening which has the glass nesting channel in it, which does not serve the
majority of the  41 x 101 format users.......SO!

We are testing a masking system to interface between the two 23 x 33mm
glass halves.
Making it succeed is another story.  It will take some time to perfect the
very thin but opaque masking material, such that it will withstand heat
during projection, and provide accurate masking without side effects.

If we can succeed with this...it will open up a wide array of possibilities
for all the 41 x 101 format users.  Stay tuned...we will know more in the
next few months.  In the meantime, if anyone wants to try full frame 23 x
33mm opening, two sided a-n glass mounts......I have a supply of them in
stock.

Regar-D-D-D-s
Jon Golden
3D Concepts