P3D sharp lens

[ron labbe <ron@xxxxxxxxxxxx>]

>From Eric G:

>OK, here's an experiment which might help... if you are looking at a 7
>perf slide, can you sharpen the corners of the image by racking focus?
>Does this then soften focus of the image content in the middle? And if
>you are looking at a 5 or 7 perf slide (preferably an RBT with nice hard
>edges), does the frame of the window appear perfectly square, or do you
>see any bending? Does the window look a bit like a pincushin?

I tried it, too- 
At premium focus the edges also look premium, if I refocus it ALL goes out...?
As far as pincushioning, I've never really noticed it before (which is the
real test?)- it's a very slight bow inward, hardly worth complaint! Since
nothing man-made is perfect, I'm very happy with my Kodaslide II (though a
deWijs viewer would make me just a little bit happier! ;o)...



ron

ron labbe/studio 3d
30 glendale st maynard ma 01754
978 897-4221
mailto:ron@xxxxxxxxxxxx
http://www.studio3d.com


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