[Simmon Omega] EL-Omegar 50/3.5

Single-coated lens made in Japan by Komura for Omega enlargers. [Cat L455-110]. AKA Berkey EL-Omegar 50/3.5. Superceded by Rodenstock EL-Omegar 50/3.5 [Cat 455-110].

Weight 57 g
Dimensions 50 mm
Focal Length (mm)

Image Circle (mm)

Max Aperture (f)

Min Aperture (f)

Aperture Blades


RF/L Extension (mm)

Flange-Focal Distance (mm @ ∞)

Front Thread

Rear Mount

Sharp (Near)

Sharp (Far)

Serial Numbers



  1. 16:9

    Very sharp in Zone A at all distances; very soft in Zone C – even close-up. Typical triplet bokeh. Strong vignetting until f5.6: image circle doesn’t allow movements on full-frame (36x24mm).

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