Amy Hoygot myself a weird little lens: a schacht ulm m-travenar 50mm 2.8. a 1960s 1:1 macro lens with 12 blades.
i thought the tube was a helicoid but it’s not, it’s just an extension/nesting tube. i can do 1:1 easily with an m42 helicoid (but freelensing til i get an adapter! yike!)
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