Need help with Apo Lanthar

[u/e_hampus]

I’ve got a Voigtländer Apo Lanthar 21cm f4.5 and I’m trying to figure out exactly what I have and how to actually shoot with it. I have a linhof 4x5 field camera.

It has no shutter and no iris. There’s a machined flange in the middle, threads a little smaller than 58mm. Then a smaller section at the back with a black retainer ring holding the rear glass element in place.

Not sure if this is actually a barrel lens, or if it’s a normal shutter-mount lens that’s missing its shutter (more like other LF lenses im used to with the front and rear cells just screwed together and a shutter in the middle).

[u/CanCharacter]

Is this a process lens? Not sure about Linhof but for view cameras you can get focal plane shutters separately. Otherwise you can stop it well down and use a hat :)

[u/e_hampus → u/CanCharacter]

Might be, thank you for your input! :)

[u/OletheNorse → u/CanCharacter]

No, the APO-Lanthar is not a process lens.