P3D Re: Comparing 5P, full frame and MF (was Re: 2x2x2 stereoformat)

[Greg Erker <erker@xxxxxxxxxxxxxx>]

>After having viewed a few full frame pairs in my Saturn MF viewer, I
>realize that the magnification of a MF viewer is not sufficient for
>2x2x2.  In fact I've been thinking about building a 2x2x2 viewer along
>the lines of the Saturn viewer. I was trying the 2x2x2 pairs in the
>Saturn in the hopes of not having to build another viewer.

  I wonder if the Saturn MF viewer has room to
"drop in" another set of achromats behind the
existing ones to shorten the FL and give higher
magnification when you view your 2x2 slides.

  I built a multiformat viewer (Realist, 2x2
and 2x2 verticals) based on large diameter
double achromats for each eye (two 36mm dia by
94mm FL). The viewer uses Franka adapters from
Reel 3-D to hold the 2x2's or Realist slides.
http://www.angelfire.com/ca/erker

  The resulting lenses are excellent though
the 50mm effective FL is a bit long. 45mm
or so like the redbutton would be nicer.

  If I had more time and woodworking skill
I might try to build the ultimate multiformat
viewer that handled MF, Realist and 2x2 by
removing one set of achromats to view the MF.
(say 40mm dia by 80mm FL for MF and 40mm dia
by 45mm FL for 35mm formats).

Greg E.


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