leo.roos:
a7 + Meyer Trioplan 1:4.5 f=4cm, 1936 (with Boltavit I and Photavit I in the background)
leo.roos:
Photavit I with Meyer Trioplan 1:3.5 F=4,2cm, and Photavit I with Meyer Trioplan 1:4.5 f=4cm (with Boltavit I in the background)
leo.roos:
Two M28 screw mount cine lenses on top of each other, back to back: 1 ) Helios-33 35/2 with a thread pitch of 0,5; 2) CZJ Biotar 25/2 with a 1,0 thread pitch for which I am having an adapter > M39 made.
