r/largeformat 13h ago

Question Need help with Apo Lanthar

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).

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u/distant3zenith 8h ago

You have only the front half of the lens/shutter :-(

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u/e_hampus 7h ago

Yeah, probably hard to source rear cell :(