Re: Realist viewer lenses

[Joel.Alpers@xxxxxxxxxxx]

Greg writes:

#
#  Just looking at my new Edmund Scientific catalog. They sell
#some Hastings Triplet Achromats. For $34.60 you can get a lens
#with 23 mm dia and 40.3 mm EFL. The Back FL is 33.9 mm and the
#center thickness is 18 mm. They don't appear to be AR coated.
#
#  The catalog blurb says "provides the ultimate in distortion-
#free, color-correct viewing" and "computer-designed ...
#contributing to the reduction or elimination of pin-cushion
#distortion and chromatic or shperical aberrations".
#

The problem with the Hastings design is that it gives only
a _very_ narrow field of view. Within this range they
are superb, but they don't give anywhere near enought FOV
for a Realist slide.

I was bummed, too :(


Joel Alpers
Rocky Mountain Memories - Equipment and Supplies for the 3D Photographer
rkymtmem@xxxxxxxx
http://www.frii.com/~rkymtmem


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