OK since we are all listing our MF viewer wishes .....


I would want a very wide AFOV EP, about 80 degrees which is max.
achievable with sufficient ER - min. 20mm, tremendous MTF values across
the entire film radius.... IPD adjust (mandatory), sufficient nose room,
and excellent control of lateral color, a very annoying aberration.
But.... here is where I go off the deep end....


I want a compound system which consist of an EP and a relay lens, which
images the film to the EP, like this....


http://tinyurl.com/6az55u


Notice the gap between the relay lens and the
EP....this offers 4 great NEW features never offered in a stereo viewer....


1) through the use of mirrors or prisms, you can fold the light bundle
like this......


http://tinyurl.com/6e6hyu


Which now allows for IPD adjust while keeping the
film in the exact same position.... this will always assure perfect
centration of the eye pupil, lens center and the film center, regardless
of IPD setting.


2) The compound optical system allows a long light path, so the user
can now space the film far part, enabling a sliding film transport
system. This will now enable the use of 6x17 Panoramic stereo
slides....you can only see 52mm square at one time, but you push the
6x17 through to see the entire 6x17 in stereo! Like you are spinning
your head around in the real world. This ray trace makes this clear....

*http://tinyurl.com/5uhuae
*

3) With the ability to fold the light path, you can now create better
ergonomics for the stereo viewer so it's more user friendly, similar to
a microscope.... here is an example how the ray bundles can be folded to
accommodate a very nice MF table-top viewer with the film rack nearly
laying on the table for easy insert / removal... the images are not
oriented properly in the 3d plane...

http://tinyurl.com/69h6aq


4) With such distances between the relay lens centers, the film racks
can hold multiple views, maybe 15 views per rack before film change-out
is required. The end of - ONE-IN, ONE-OUT system....


OK leaving the fantasy world, back to
reality.... I would probably settle for a simple 5 / 6 element lens
design with great optical performance in the 45 - 50mm fl range and AFOV
about 75 degrees.... simple, affordable and not too big.... of course,
all the optical performance mentioned above.... like this...

http://tinyurl.com/5m8rcx


Bill G

Wow! You've nuked this thread, Bill!

Thanks for sharing what is no doubt just the tip of the iceberg on
all the research you've been doing! There is a LOT of valuable in
formation in your last two posts to this forum.

Thank you,

Mike Davis

Wow! You've nuked this thread, Bill!

> Thanks for sharing what is no doubt just the tip of the iceberg on
> all the research you've been doing! There is a LOT of valuable in
> formation in your last two posts to this forum.
>

Thanks Mike..... it was your curiosity in the
late 90's, always asking "what if" about the possibilities of better
stereo viewing systems that fueled my early fires. And as you can see,
that curiosity, mixed with a little of my own OCD was a lethal a dose of
ingredients, producing a "Hobby Gone Wild" effect.... arggggggg......
I need to take up jogging as a hobby. Optics as a field, is the
biggest Pandora's box I have ever experienced in my life.