Ross Resolux 5cm (50mm) f3.5

Ross Resolux 50/3.5 [V1]

Silver Tessar enlarger lens. [V1] has a six-blade aperture and is marked ‘ENLARGING OBJECTIVE’. Note earlier logo, low serials and inset fascia. Early versions (ie #207314) marked ‘COATED LENSES’.

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Dimensions	50 mm
Focal Length (mm)	50
Max Aperture (f)	3.5
Min Aperture (f)	16
Aperture Blades	6 (Curved)
Elements	4 / 3
Rear Mount	M39
Production	1946-1957
Serial Numbers	60053, 69568, 201072, 207314