[photo-3d] Re: Tri-delta beamsplitter

[penultimate@xxxxxxxxx]

This may provide some useful info for Peter Davis' query:

I have had a Tri-Delta beamsplitter since 1973.  A "custom ring" was
supplied with the original unit which adapted the unit to the thread
diameter of your normal lens.  The threads on the beamsplitter
itself fit a SERIES V (5) filter holder.  If you cannot obtain a
52mm custom ring, then you will have to find a way to go from 52mm to
series V.  I suggest you call B&H photo in NYC and see if they can
help.  I have had luck in finding odd-sized filter adaptors
there.  You may even have to use more than one adaptor to get to
where you want to be.  As for vignetting, the custom ring is flat
and causes no vignetting atall, but you may run into problems if an
adaptor(s) moves the beamsplitter further from the front of the lens.  

Hope this helps.
Duke

my 3-D page: http://www.angelfire.com/on/theduke/3-D.html


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