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View Full Version : Rodenstock Imagon 22cm/4 Kunstler Portratobjektiv


tripod
3-Nov-2019, 08:24
Hello to all!
I will wont to knew - is this "classic" Imagon or something "spessial"! Can Not finde any information about this version of lens!

https://d.radikal.ru/d35/1911/e7/37bbc45f2bf0.jpg (https://radikal.ru)


https://c.radikal.ru/c19/1911/68/f042901fdbcf.jpg (https://radikal.ru)
cowanw
3-Nov-2019, 09:31
Perhaps Russ Young might see this and comment.
Bob Salomon
3-Nov-2019, 09:37
A very old Imagon.
tripod
3-Nov-2019, 10:07
This used without additional diagragm with holes? Fixed/constant "soft effect" ?
Bob Salomon
3-Nov-2019, 10:50
This used without additional diagragm with holes? Fixed/constant "soft effect" ?

This is one made by Kunstler who invented the Imagon. All used the disks, although they might have mounted differently then Rodenstock ones.

Rodenstock bought Kunstler a very long time ago.

Sorry, Kuhn invented the Imagon. Not Kunstler.
cowanw
3-Nov-2019, 10:51
How many glass surfaces are there?
tripod
3-Nov-2019, 13:05
How many glass surfaces are there?

can not detect, have not in my hands now
cowanw
3-Nov-2019, 14:06
Dr. Heinrich Kühn invented the concept of the Imagon. Dr. Franz Staeble was the lens designer. "Kunstler Portratobjektiv" would mean Art Portrait Lens.
While this lens clearly was made by Rodenstock, I had thought that very early Imagons might be written as Jmagon and as well 22 cm F 4 is an odd size. The image seems to have more elements that what we think of as an Imagon. I hope you get it and tell us about it.
tripod
4-Nov-2019, 04:42
Thank You , guys, for Your commen! If so happens for me to have this lens for test, i will tell You more about it!
Steven Tribe
4-Nov-2019, 13:38
Doesn't look much like an Imagon to me unless the front "lens" is a plain glass/filter?

Perhaps Rodenstock transferred the "Acquired trade name" to grace the Imagon product?
bjsmith7474
14-Nov-2019, 13:06
well...weirdly enough I just picked up one of those also. Appears to be basically an aperture and two elements. Does the photo help any?
197422
bjsmith7474
16-Nov-2019, 16:02
anyone?
lucaas
16-Nov-2019, 20:30
I have a very similar lens, same focus length and aperture. The difference is it has “soft focus lens” on the front rim.

I took the elements out, the front is single convex, the rear is two glass cemented.
https://uploads.tapatalk-cdn.com/20191117/0c34f1a5467be9389061d3ea689a5363.jpg
Jody_S
16-Nov-2019, 21:04
I believe Rodenstock made an older (brass) version that was the inverse, the single element was in the rear. It was called 'hemi-anastigmat', I guess for 'half of an anastigmat'.


I have a very similar lens, same focus length and aperture. The difference is it has “soft focus lens” on the front rim.

I took the elements out, the front is single convex, the rear is two glass cemented.