re: More on Projection

[Derek Gee <73157.2172@xxxxxxxxxxxxxx>]

George writes:
>Derek, you have been doing a great job as a projectionist.  Your system and
>philosophy of projection is excellent and fair.  First you adjust the
>projector carefully and then you let the slides fall wherever they may.
>You do not attempt to adjust the projector to correct for people's mounting
>mistakes.  You only adjust the focus which is reasonable since this is
>affected by the thickness of the slides.  My slides always project well
>because they are mounted carefully.

Thanks for your kind words.  I do make some small corrections on occasion,
but if you're not noticing them, then I'm doing my job.  Focus changes make up the
bulk of the adjustments.  I would also like to add that I have never seen one of
George's slides with a mounting error!  Thanks for setting a good example.

>The worse adjustment I have seen being practiced, and I am sorry to say
>that they were doing it in the Chicago Stereo club, is to try to change the
>horizontal separation to match bright areas in the background and eliminate
>ghosting.  This adjustment is totally unjustified and destroys the stereo
>window which contributes greatly to the projected impact.  I am surprised
>that some people find it appropriate...

I might make such an adjustment if the slide bordered on unwatchable...

>In the Detroit club only once I had a problem with the projection and that
>was during the first competition night this year.  The horizontal
>separation was off and the images were projected one foot or so from our
>faces.  It was a nightmare and most slides, including mine, were killed
>that night.  One of my slides got 19 points which was one of the lowest
>scores of the evening.  I send the same slide to the non-star PSA
>competition this year and it won first place!  This is a proof for me
>that projector misadjustments can greatly affect the end result.

I'd be careful about blaming projection for low points on a slide.  The only
cases where I've seen this to be true is if one panel is out of focus.  This
happens frequently with our Brackett Dissolver, which is why we don't
use it for competitions unless we have to.

>From my experience, the major factor influencing a slides low score
seems to be the judges.  One person's "9" point slide is another 
person's "1".  As you and I were discussing last night, there was a slide
in the PSA Traveling Salon that had taken 2nd place that neither of us
would have bestowed that honor on, but yet other judges in our club thought
highly of.  It was a good slide, but there were better ones.  Go figure...

                                 Derek Gee
                                 Detroit Stereographic Society




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