32cm f/3.5 aero-xenar

[peter_chiappini]

Hello, does anyone know how to get the front element out of this

lens? There's a bit of a haze on the back of it that I want to

clean. Thank you, Peter

[peter_chiappini]

After a few hours I did get it apart, but the haze seems to be inside the front group of elements. The lens is extremely sharp even wide open regardless, and has a dof of only an inch or so.

[jim_galli4]

Lens Vade Mecum suggests that these Aero Xenar's are Heliar type. 5 element, 3 group. I have a 250mm. Should be good wide open if that's the case, and that makes sense because that would have been the requirement.

[peter_chiappini]

Thanks Jim, I have a copy of the vade mecum too, its really useful but huge and I didn't see the design specifics. It doesn't mention coverage does it?

[eugen_mezei]

I have this lens also and I would like to know more about it. (Mine is in perfect condition, no haze, no nothing.)

I asked Schneider, but they know nothing about this lens.

 

I would like to use the lens, at the moment it only gets dust.

 

Peter has a photo of the lens on his page:

http://www.butteryourshutter.netfirms.com/lenses.htm

but I could also describe it:

 

Aero-Xenar

1:3,5 f=32 cm

Hersteller kqc (that means: producer kqc)

Bauart kqc

Nr71589

 

engraved.

 

It seems to be uncoated.

Front element about 10 cm diameter, back lens about 7 cm diameter.

 

On the back (metric?) Thread, diameter aprox. 10 cm.

 

Iris with positions 3,5 to 11. (3.5, 4, 5.6, 8, 11)

 

Heavy! (Well, it's an impressive thing.)

 

I bought it from a russian, who told me the lens was used in an aircraft. He also had other lens saying they also were used in aircrafts (aerial photography), but the others were about what we consider normal LF lenses by today standards. (They were old too.)

 

Maybe somebody has some data about this lens.

 

Greetings from Germany,

 

Eugen

 

P.S.: Peter, your emailadress is defunct!

[john_schneider2]

This site:

 

http://www.photobooksonline.com/books/catalogs.html

 

is offering an old Schneider catalog reprint that might shed some light:

(1939) Schneider Lenses. Illustrated catalog featuring the Xenar, Radionar, Xenon Kinoplan, Tele-Xenar, Angulon, Symmar, Aero-Xenar, Componar lenses and accessories, 48 pages, 5-3/4x8-1/4", reprint, $15.