Do you know those projection lenses?

superflash · Feb 15, 2021

I found recently 2 lenses that belong to the same serie: ISCO OPTICS GERMANY HS STUDIO AV. Here you are:

https://www.ebay.it/itm/ISCO-GERMAN...idWebWithBBEV2&_trksid=p2047675.c100005.m1851

https://www.ebay.it/itm/ISCO-GERMAN...323822?hash=item54943db0ee:g:6HUAAOSwLf9gF5Bg

Any of you know them, own them, have you ever seen them?
Nobody knows what the isco site was in the 90s?

AgX · Feb 15, 2021

I not quite understand the intention of your question.
Isco was founded in the 30's as subsidiary of Schneider, likely in expectation of an armament production. After the war they made lenses for amateur cameras but also for cine-projection. When the amateur camera market was taken over by japanese firms they remained with projection optics, still and cine, with a high reputation.

superflash · Feb 15, 2021

Thank you very much for this brief summary of Isco's history.
My question is: do you know one or both the lenses of above links?

AgX · Feb 15, 2021

No, as these models were used typically in commercially used projectors and those I hardly come across. There are other more common lenses by them though, that you find at amateur projectors.
I did not undersand yout question on the Isco site.

superflash · Feb 15, 2021

"I did not undersand yout question on the Isco site"
Sorry for my bad english: I would like to know if Isco, in the 90s, had a website.

AgX · Feb 15, 2021

Both lenses in question cost in the late 90's about 600€, a multiple what they asked for their consumer grade lenses.

Would I pay today 180€ for them? Only if I would need a high-end lens of 130mm at once. A short high-end Leitz lens can be had for 10€ already.

AgX · Feb 18, 2021

I did not hint at this point yet, but I better do so for anyone else but the OP: the lenses in question got a barrel for the Kodak Ektapro and (american) Carousel projectors.
But then there are also the different barrels needed for the (german) Carousel S and the various german projector lens mounts.

fabulousrice · Feb 19, 2021

You should check out Mathieu Stern's youtube channel, he uses these lenses to take pictures it's pretty interesting.

superflash · Feb 24, 2021

Unfortunately of all of Stern's videos, none are about the lens I mentioned.

fabulousrice · Feb 24, 2021

superflash said:
Unfortunately of all of Stern's videos, none are about the lens I mentioned.

Yes, sorry if I wasn't clear - I said "these lenses" as in "he uses projection lenses".
I did however read an article recently about someone who fitted a Schneider lens on their Pentax 67 but I've lost the link.

Do you know those projection lenses?

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