T3D Re: Panum's limit

[Peter Homer <P.J.Homer@xxxxxxxxxxxxx>]

 I have just got back to work after a weeks holiday,while I was away John
Bercovitz replied to my last post.

>I haven't tried the lines by themselves in a viewer.  Sounds like an
>excellent experiment and not hard to do - just put a gauge in the
>viewer.  Better yet, since the viewers in real life had focal lengths
>around 45 mm, to get two degrees, we need a separation of 1.6 mm.
>
>Have a good holiday.
>
>John B

Have you tried this experiment yet, I canot say I have specifically tried
it myself but I seem to recall that the Panum phenomena is apparent for the
lines themselves with no slide in place and using a mounting viewer. I will
have to check to be shure, but in anycase this would have been using the
realist gauge or the seven perforation both of which are below the 1.6mm
you suggest. The gauge intended for 2x2 mounting has two or three lines at
different seperations and I think the widest is about 1.5mm .
Unfortuneately I cut both of mine  up to make gauges to fit into my SLR,s
for judging the infinity point distances when making hyperstereos.
P.J.Homer



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