Stereo Images From Juneau

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NSA 2004

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The images are presented in cross-eye and anaglyph format. If you prefer a different format or size, please give the Stereoscope applet a try.

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Many of these pages use a Java Stereoscope applet by
Andreas Petersik. It made a Java convert out of me and I highly recommend it.

Medium Format Exposure

The 2004 NSA convention in Portland Oregon generated a great deal of interest in medium format stereo images. We saw projection, hand-viewer slides and new cameras and viewers. Here are a few of the highlights.

New Viewers and a Camera

Those trying to create stereo art in medium format are frequently forced to build their own equipment. The last medium format camera was created thirty years ago and only two commercially available viewers have been made in the past ten years. A lot of work has been required to find, buy, adjust and build the equipment necessary to form and view the images. That situation is changing.

At the 2004 NSA convention, we had the opportunity to purchase newly designed and built hand viewers. We got to see and handle a prototype of an upcoming stereo camera. We could even purchase a coin-operated medium format drum viewer.

Pictured above are Alan Richmond of Inovatv Global Parts and Jacob Xu of Uni-Colour. Together, they are designing, building, and marketing a stereo hand viewer, illuminated drum viewer and camera (shown to the right). All for medium format and all newly designed.

The Camera

The camera we got to see in Portland was a non-functional prototype. It contained lenses, shutter and aperture controls, but little else. Jacob and Alan were soliciting opinions regarding their unfinished product. As shown, the camera featured:

Two 75mm f/4.5 lenses
Aperture control on one lens barrel, shutter control on the other
Tunnel viewfinder
Threaded shutter release
Thumb lever advance and shutter cock

Red window on the back (it is unclear if the film advance will be automatic or by red window)
Focus knob at lower right
Flash shoe (it is unclear if the shoe will be hot or cold)

The above images are linked to cross-eye stereo pairs.

On the Big Screen

There was more than one medium format stereo show on the big screen. The one that kept people talking was the panoramic work of John Roll.

I quote Mr Roll who says:

"The show was shot with my 6x7cm MF stereo camera with 43mm lenses. The film was mounted in Wess 701 slide mounts which are cropped to a 2.2:1 aspect ratio (67.5x31mm). I projected with the Goetschmann projectors from 56 feet with 250mm lenses on the 7x21 foot NSA screen, so I filled about 73% of the screen. The projectors have 6000 lumens for 6x7 slides, so the images were reasonably bright."

His images were technically and artistically superb. If you have an opportunity to see this show, you should not miss it.

Viewer Modification for 80x132mm Mounts

If you would like to easily use that STL medium format viewer with your 80x132mm mounted slides, check this easy modification out.

There is no risk to your viewer and it only costs you $2!

A Viewer In the Hand

The new steal-the-light viewer is a fine product. It has a coated achromatic lens and a decent diffuser panel. My Sekonic 208 meter measures a 1/2 stop loss through the panel.
Here are the specifications as far as we can measure:

Lens diameter 32mm
Lens focal length 75mm
Viewer lens opening 30mm
Interocular 64.5mm
Viewing apertures 55x55mm
Fixed focus

The matching plastic mounts have 54x54mm apertures and are 80x140x3 mm overall. The slide slot will accept RMM3D 80x132 cardboard mounts with a little play in all directions. When using 80x132mm mounts, the bottom edges of the viewer frames intrude into the image by about 1mm. Dropping a small spacer in the bottom of the slide slot would raise the slide and correct this problem.

My thanks to Gary Cullen for disassembling his viewer to take the above photos and measure the lenses.

For even more information and analysis, take a look at what Mike Davis found when he compared this new viewer with his existing SaturnViewer.

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