Hi,
Hello,
I want to do a show with multiple slide projectors. I don't want to "burn" my only copies of the shots.
no need to be afraid of that: All modern quality slide projectors have very efficient cooling systems for the slides and bulbs.
The heat is so low that the slides can stand it without problems, even if the projecting time is very, very long.
And if you fear color fading, don't worry: The current E6 slide films can be projected for about 200 (!) hours before a slight color fading slowly begin to start.
In general a slide is shown for about 10 to 25 seconds in a slide show.
So you can make hundreds of shows without problems if you want.
If you want to be absolutely on the 'mega safe side': Just make two shots from your subject: One for the slide show, one for the archive and as a backup.
By the way: That is the most easy, cost effective way of duplicating. Much cheaper than a separate duplicating with duplicating film. And the one with by far the best picture quality, because you have two identical shots on your original, highest quality medium.
So, is duplicating an option?
See above.
I mean is there a lab that still makes them?
There are some labs in Germany still doing it. They have stored lots of duplicating film in the freezer to serve customers for the next years.
Will there be losses in terms of image quality?
With duplicating film: yes. Quality is a little bit lower (slight color differences) compared to the original.
Again: Best method quality wise, and furthermore the cheapest is simply making two shots of the subject.
Can I have negatives turned into slides...?
Yes, via scanning and then exposing on slide film with a 4k Lambda. Some labs in Germany are offering this service.
Certainly there are such labs in other countries, too.
Cheers, Jan