P3D Re: Projection Technique

[Dan Wenz <djwenz@xxxxxxxxx>]

On Mon, 6 Jul 1998 LeRoyDDD@xxxxxxx wrote:

> 
>      Light spill from the projector(some worse than others) will reflect off
> the walls, etc.
>      Even if exterior light and projector light spills are well controlled,
> there's a lot(one hopes) of light reflected off the screen! The typical white
> "living room" will reflect this light quite well.
> 
Strange coincidence - I was projecting my first self-mounted slides
yesterday , quite close to the screen so the image was small, around 10"
wide on my 50" screen, and noticed, to the left and right of the (dual)
main image, a dimmer "secondary" image which appeared to be coming from
each of the lenses - the right image from the left lens, and visa versa
(if memory serves). Normally I wouldn't have noticed the secondary images
since the 50" wide image covers the whole screen, which is generally in
front of a non-white backround. Projector is a 716A Stereo Vivid Deluxe.


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