Re: [photo-3d] size of slide for Richard F-40 viewer

["Dr. George A. Themelis" <drt-3d@xxxxxxx>]

At 05:03 PM 6/16/00 -0400, you wrote:
>I own a Bush Verascope F-40 camera and Busch viewer.
>I have read that Jules RICHARD also made a (different)
>viewer for the F-40.  Is the Richard viewer compatible
>with 41x101mm slide format? How do the optical properties
>compare to the Realist Red Button or a Kodak Kodaslide II?

Which Busch viewer do you have?  The earlier Busch Verascope
viewer is black with red controls and features very nice
achromatic lenses, 25mm in diameter.  This viewer also
has the interocular graduated in mm.  Later Busch
viewers are grey and have single element lenses or
two lenses per eyepiece (like the VM model D and
airequipt) which gives inferior viewing, compared to
the achromats.

Jules Richard made stereo cameras long before the Realist
came along so they are Richard viewers in different formats
(not Realist).

Keep an eye for the black Busch Verascope viewer.
This is as good as it gets.

George Themelis