P3D Re: TDC Projector Problems

["Dr. George A. Themelis" <DrT-3d@xxxxxxxxxxxxxxxxxxxxxxxxxxx>]

OK, the Doctor is back... :-)

>Steven Stulz writes:
>>From one slide to another they don't always line up, instead giving
>>a "ghosting" image.  A little fine tuning with the horizontal
>>adjustment on each slide and it pops in to perfect view.  Is it
>>normal to have to adjust for each slide, or am I not mounting my film
>>chips correctly or consistently in the mounts?

Sounds like you are trying to adjust the highlights in each slide
and that, of course, means continuous adjustment from slide to slide
something which is unacceptable for me... Why do you get this much
ghosting?  You mentioned installing new polarizing filters for
the projector.  How about the glasses & screen?

The two images are not supposed to "line up" on the screen.  The 
objects at infinity are normally separated by about 2.5 inches. 
Adjust the horizontal so that the edges of the mounts are matching
on the screen (common practice for up to 50" screens)...

I suggest that you look into the cause of the ghosting....

George Themelis



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