lens body showing it with extension tube labeled 37mm

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   Amy Hoy (amy@jawns.club)'s status on Tuesday, 14-Mar-2023 05:02:42 JST Amy Hoy

   got 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!)