Hello,

My name is Patrick Dubé from Québec in Canada. Iéve been doing digital
stereophotography for more than a year now (take a look at my work at
http://www.solitonbeat.com/StereoPix/ ) and recently move to MF slides with
a tuned Sputnik and a 3D World handviewer.

I'd like to use a twined polarized projector setup to show people my slides
but not quite sure what kind of projector to use. Is there a way to hack
35mm projectors or overhead projectors to use MF slides? What are the (low
budget) options available? I dont need automatic fonctions, trays or
anything fancy.

Patrick

--- In MF3D-group@yahoogroups.com, "Patrick Dube"
wrote:

> I'd like to use a twined polarized projector setup to show people

my slides but not quite sure what kind of projector to use. Is there
a way to hack 35mm projectors or overhead projectors to use MF
slides? What are the (low budget) options available?

Nice images Patrick!

By hack, I assume you don't mean major surgery to lenses,
condensers, etc. If you would consider cutting down some of your
MF's to superslides (40mmx40mm) then old Kodak projectors should
work. But the original systems won't cover the ~50x50 field.

If it were me and I was desperate to do this, I think I would dupe
the MF's to 35mm using a good slide duping film (about $0.8 per pair
after you get the system calibrated), and cropping for effect
(portrait mode / landscape mode, etc.). But you will have to
remount the dupes for precise registration (which is quite important
for projection). Alternatively, digitize the MF's (if you have the
gear for this), and output to pin-registered 35mm (about $4 per pair
at a commercial lab, but no mounting issues). Of course, that's
easy to suggest if one already has 35mm projection gear. Maybe you
can find a pair of used MF projectors, but the cheaper ones will be
real clunkers (hand loading, etc.), and it will be very hard to find
a matched pair.

John

>Nice images Patrick!

Thank you John! BTW, your website (technote and galleries) has been very
useful to get me started in stereophotography. There is also some of the
most beautiful stereoviews I have seen!

>By hack, I assume you don't mean major surgery to lenses,
>condensers, etc. If you would consider cutting down some of your
>MF's to superslides (40mmx40mm) then old Kodak projectors should
>work. But the original systems won't cover the ~50x50 field.

Thank for tip! I didn't know that such a thing (superslide) existed. I will
probably go that way with slides I don't mind to trim. On the positive side,
it will allow more flexibility for setting the stereo window.

Patrick