P3D Re: adjusting projectors

[Paul Talbot <ptww@xxxxxxxxx>]

CanterMike@xxxxxxx wrote:

> The only presentations I have ever seen
> that could be viewed comfortably with no adjustment have, without
> exception, been the work of individual artists who had complete
> control over the mounts and mounting.  Once the projector was aligned
> for the first slide, the rest of the show was faultless.  As soon as
> any other photographers slide was projected, some adjustment had to
> be made.

Can you give examples and explain what adjustments were necessary,
and why (i.e., what made the slides unviewable, and how did adjustment
improve the situation without introducing other artifacts?)  I have
seen several projected showings of mixed slides with no adjustment,
including a PSA "Hall of Fame" collections, and never experienced any
discomfort.  Being relatively new to viewing stereo projection, I
may have overlooked some technical shortcomings to which you could
be alluding, but did not experience anything that made any images
"unviewable."

Paul Talbot


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