beseler-pro-komura-50b

beseler-pro-50-box2

Beseler Professional 50/3.5

Japanese enlarger lens (early 4-layer multicoated model) made by Komura. Rare earth glass. Identical to Komuranon-E 50/3.5 (only packaging differs).

Category: Enlarger Lenses

Specifications
Reviews

Weight	112 g
Dimensions	50 mm
Focal Length (mm)	50
Max Aperture (f)	3.5
Min Aperture (f)	22
Aperture Blades	8 (Straight)
Elements	6 / 4
Sharp (Near)	84.3%
Sharp (Far)	82.0%
Rear Mount	M39
Front Thread	N/A
Flange-Focal Distance (mm @ ∞)	42
RF/L Extension (mm)	22
Production	c.1974-1979
Serial Numbers	4010001, 5070793
Contrast	High
Flare	7
Stars	7

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