P3D Projection infinity-on-screen question

[fj834@xxxxxxxxxxxxxxxxxxxxx (Dr. George A. Themelis)]

>Any mounting tips for full-frame images in RBT 33mm mounts.  All of my slides
>look great in a viewer but a few require a lot of horizontal adjustment when
>projected in my TDC116.  I need to mount them so that no adjustment is
>required between slides.  Is there an optical viewer that is more critical
>than my Star-D or Radix viewers to I can get it right the first time?
>
>The way I adjust the knobs on the projector is to remove my polarized glasses,
>and adjust so that the most distant objects are merged.  This seems to be the
>best setting.  I do not try to align the windows with each other.

Well, you are doing it wrong :-)  You are adjusting the projector to 
match the infinity on the screen.  In my opinion, this is not a good
thing to do.  Then, you want an viewer to be "critical" so you can "get
it right the first time".  

I have good news for you: You can use the viewers that you have now and
mount your slides wrong, i.e. with the infinity on the stereo window.
Then you will not have any problem in projection.  You might not like
what you are seeing in the viewer, but, apparently, you like the same 
thing in projection.  

I don't understand why you want to put in infinity on the screen when
in reality the screen is only 10-20 ft or so from your eyes.  This
practice can eliminate ghosting but it is unnatural and ghosting is
only a problem in isolated cases.  Perhaps you can explain the reasons
for your preference?

George Themelis 


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