Leitz Focotar II 100/5.6

Superbly corrected enlarger lens at close range but degrades to Bronze-level performance at distance.

Weight	175 g
Dimensions	100 mm
Focal Length (mm)	100
Max Aperture (f)	5.6
Min Aperture (f)	22
Aperture Blades	8 (Straight)
Elements	5 / 3
Sharp (Far)	75.8%
Rear Mount	M39
Front Thread	49mm
Flange-Focal Distance (mm @ ∞)	97
RF/L Extension (mm)	77
Production	1974-1983
Serial Numbers	2711301-3128500
Bokeh Character	Without obvious defects; optical vignetting minimal but worsens toward infinity.
Contrast	Medium
Colour	9
Focus Shift	Mild
Flare	6
Stars	7