P3D Re: lenses (from digest 3699)

[Steve Berezin <sbere@xxxxxxxxxxxxx>]

CanterMike@xxxxxxx wrote:
> 
> In digest 3699 (I often run behind like this), David Clark writes, in part:
> 
> <<
>  I am interested in making my own matboard cheapie viewers [snip]
>  I have an Edmunds optical catalog, but don't
>  know what to order and they seem expensive.
>  >>
> 
> In a truly remarkable coincidence of timing, I spent a while today looking at
> the Edmunds catalog, too, only I want to replace the (old scratched single
> element) lenses in a slide viewer with something sharper, and perhaps with a
> better field of view for wider-than-realist formats.  What should I be
> looking for?
> 
> I know many of you have done this, so don't be shy....
> 
> Steve, what are you putting into your high zoot viewers these days?  Are you
> fitting the same optics into both your modified Life Like's as well as the
> Brumberger?
> 

Pretty much except I am working on a 44mm FL achromatic Lifelike, best
for Realist and Nimslo.  I also put the 47mm version of these achromats
in Frankas and most recently the StereoKit(?) 2 x 2 viewer that Dalia
used to sell.  I am also importing some Russian optics for both 2 x 2
and a viewer for twin Horizon Panoramics I am working on.  Most of the
optics I can make available for people making their own viewers.  Please
see:

http://www.berezin.com/3d/vieweracces.htm


I have also made a pretty nifty over designed light source for a
View-Master viewer based on twin 12V halogen bulbs (AC or cigarette
adapter only now). It has a circuit board, capacitors, mercury switch...
If anybody is interested in that please contact me. 

Also, BTW, I got a hold of the people who used to make the Franka
viewers (Franka is defunct) and am able to get the parts now.  Reel-3D
quit carrying the Frankas because of the poor quality of the lenses.  I
am now offering the old Franka viewer again but calling it the RealTwin
(since it can hold Realist and 2 x 2s).  I have replaced the old lenses
with achromats but I am also making a version where I am replacing the
lenses with a single element glass lens (which is better than the one it
originally came with).  





> Your advice & assistence is greatly appreciated.
> 
> Mike

-- 
mailto:sbere@xxxxxxxxxxxxx
http://www.berezin.com/3d
Steve Berezin
Berezin Stereo Photography Products
21686 Abedul
Mission Viejo, CA 92691
USA