Big Kinoptik Paris S.F.O.M f=300mm 1:3.6 T ( 3.6/300mm)
very rare fast lens covering 5x7 inch at infinity, made in very limited quantity, probably on special order only, iris diaphragm f.3.6 to f.22, good optics with minimal cleaning marks, front element diameter c.11,5cm, rear element diameter c.10cm
