In a message dated 98-03-03 15:57:30 EST, [EMAIL PROTECTED]
writes:
> If originals, are you concerned about eventual fade (especially Kodachrome)
> from repeated showings? If dupes, is there any quality dropoff on the
screen;
< does anyone in the audience notice?
>
Kodachromes will show noticeable fade with just eight hours of projection,
Kodak sez, or eight hours of sunlight. So don't leave slides laying around,
even in pages, where the sun can get at 'em. However, how often to you
project them? And how long are they in the machine, 15 seconds? I've never
shown the same show more than a few times, for a combined two or three minutes
total projection time.
You will notice the quality of dupes, but most audiences will not, since
they've never seen the show before. Good quality dupes can be quite pleasing,
but if you're only showing that show a few times, why not use the originals?
Ektachromes are far more resilient to fading than Kodachrome. Indeed, all
commercial slide presentations intended to be shown often are produced on
Ektachrome or other E6s. These are usually business presentations with
commercial graphs and charts, etc.
However, go to any camera club meeting, or any presentation by a serious or
professional photographer from another disipline, and you will always see
originals in the projector. And these guys guard those carousels with their
life. The birders and scenery crowd, for example, don't even speak the word
dupe in normal conversation. The model crowd (pretty ladies, not trains) are
used to tossing slides around like trading cards, since they shoot so many
frames per setup, but even they will only project originals. I guess it's a
matter of pride.
....Mike
-> SPORRS: 'Serious Photographers Of Railroad Related Subjects'
-> Web Site: http://www.anet-stl.com/acphotog/sporrs/
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