Yes, the Slide Theater has a lense. A lense is required because the film is not the same size as the CRT raster.

I only saw a Slide Theater in operation once, when we had one in the lab for evaluation. The picture quality was OK (though not as detailed as the slides themselves), but the thing that was most bothersome to me was cropping off the sides of the slides due to the different aspect ratio compared to the TV. I don't recall it having any customer adjustment for overscan. Do I remember correctly?

You're probably right. Only the TV half of my slide theater works ( and only because I fixed the wires the mice chewed through while I had the chassis out to make it light enough to move on stairs) the slide optics and chassis are full of mouse nest and the set is buried waiting it's turn on my bench... may be a few years before that happens.

Hi to all,

A complete article on the Sylvania 35mm color flying-spot scanner is described in the July 1968 issue of Electronics World.
Downloadable here (full magazine), 7.9Mb file.
See pages 34, 35 & 72

https://www.worldradiohistory.com/Ar...ld-1968-07.pdf

I published a VK post on 04/21/2022 in "Rectangular TV" section with 3x photos extracted from the article:

http://www.videokarma.org/showthread.php?t=15292&page=2

Best Regards
jhalphen
Paris/France