vince pitelka on wed 4 dec 02
>Also, if you a projecting slides in cardboard or plastic mounts, get a
Kodak
>curved field lens. If you are projecting glass mounted slides, get a flat
>field lens...
This is very strange advice. There is no reason in the world that you would
need a different lens for glass-mounted slides, although you would need to
use 80-slide carousels, which have wider slots.
But this shouldn't be an issue, because there is no reason in the world to
use glass-mounted slides today. As long as you store your slides in
archival slide storage sheets and take reasonably good care of them they
will last just as long. Glass mountings would be a complete waste of money,
and are far more cumbersome to handle and store.
Regarding the lens, just the normal zoom lens intended for Carousel
projectors will work fine. There are other lenses intended for projecting
in larger rooms, but you do not want that. The projector of course comes
with a fixed lens that requires you to move the projector closer or farther
away to decrease or increase the size of the projected image. They should
not even be an option, because this is such a pain in the neck. A zoom lens
is the only way to go.
Best wishes -
- Vince
Vince Pitelka
Appalachian Center for Crafts
Tennessee Technological University
1560 Craft Center Drive, Smithville TN 37166
Home - vpitelka@dtccom.net
615/597-5376
Work - wpitelka@tntech.edu
615/597-6801 ext. 111, fax 615/597-6803
http://iweb.tntech.edu/wpitelka/
Glenn Allenspach on wed 4 dec 02
Vince
There is a very good reason for using glass mounted slides in today's world.
They are better protected against dust. Obviously, you would not use glass
mounts for the slides that submit to juries, however, some people may want to
project their favorite slides A LOT and glass mounts simply protect them
better.
there are also three very good resons to use non-Zoom lenses. #1, they are
generally f2.8 vs. the slower (read dimmer projected image) of the f3.5 zoomm
lens. Single focal length lenses are also less expansive, and third, can be
abtained in shorter focal lenghts than zoom, thus giving a bigger projeced
image at any given distance.
Finally, any photo dealer that's worht their salt will offer their Kodak
projectors without the lens, and allow the user to choose what's right for
them. Please note that in my advice, all my comments sarted out with "IF,"
putting the needs of the user ahead of my own preferneces. try it sometime.
Glenn Allenspach
Maplewood, MN
Glenn Allenspach
Maplewood, Minnesota
GlennAllenspach@aol.com
651-779-8470
vince pitelka on thu 5 dec 02
> There is a very good reason for using glass mounted slides in today's
world.
> there are also three very good resons to use non-Zoom lenses.
Sorry Glenn, but it would be a little silly to go to the time and trouble to
have your best slides glass mounted. It makes more sense to shoot extras
and keep a set or two safely filed away in archival slide sheets.
Glass-mounted slides are awkward, cumbersome, and expensive.
And for the average user, the advantages of a zoom lens on a slide projector
far outweigh any of the reasons you site for using a fixed-focal-length
lens. For most people, it just makes no sense to have a fixed-focal-length
lens.
Best wishes -
- Vince
Vince Pitelka
Appalachian Center for Crafts
Tennessee Technological University
1560 Craft Center Drive, Smithville TN 37166
Home - vpitelka@dtccom.net
615/597-5376
Work - wpitelka@tntech.edu
615/597-6801 ext. 111, fax 615/597-6803
http://iweb.tntech.edu/wpitelka/
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