Revere Slide viewer

[P3D Dr. George A. Themelis <DrT-3d@xxxxxxxxxxxxxxxxxxxxxxxxxxx>]

>A number of years ago I bought a stereo slide viewer. It's a Revere
>Stereo 22. It looks very 50's, made of brown bakelite, with ivory 
>colored plastic knobs etc. It seems to be pretty well made with glass
>lenses that focus and it has adjustable interocular spacing. It's a 
>tidy little viewer. I have never heard it mentioned on the list. Is it
>rare or anything? Valuable? How are the optics?

The Revere viewer is not as common as the Realist red button or
>From wier@xxxxxxxxxxxxxxx Sat Sep 28 11:36:47 1996
Date: Sat, 28 Sep 1996 12:32:41 -0500
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Kodaslide II but it is not rare.  More common than the Wollensak or
TDC Deluxe.  It is a good viewer with achromatic lenses.  Before I 
got interested in viewers, 3 years ago, I sold a Revere viewer mint 
in a box with the original transformer for only $90!  Big mistake 
because a viewer like that is worth $150 or more today.

I have noticed two lens variations in this viewer.  Older ones have
little nipples that hold the lenses in the lens holder.  Later ones 
have a retaining screw ring.  You can see the nipples or ring by
looking at the lenses from the back.  The later lenses are better IMO
because the earlier ones show noticeable image "breakdown" (the image
becomes fuzzy) as you move your eyes from the center of the lenses.  

I have a good stock of original late Revere and Wollensak viewer 
lenses for sale.  They come in the original metal holder and can be 
used for lens replacement in existing viewers or general experimentation.  
Price is only $15 per lens (compare to $35 or more for similar lenses 
from Edmund Scientific).  The Revere lenses are a perfect replacement 
for Realist lenses (damaged achromats or single-element) as they have 
the same diameter (20 mm) and same focal length (44 mm).  The Wollensak
lenses have the same diameter but a slighter longer focal length (47mm).
People have used these lenses to replace lenses in Star-D/Brumbergers
Life-Like, Kodaslide I, etc.

Overall, the Revere is a good viewer.  Occassionally, the reflector
is bent or has problems that result in shadows.  It cannot be replaced
with a flat reflector.  Sometimes the Revere logo is missing from the
viewer (it is glued in the switch button).  That reduces the selling
price a bit.  My PS power supplies work well with this viewer too.

George Themelis


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