H Roussel Trylor 50/4.5

Silver French Petzval enlarger lens.

Weight 49 g
Dimensions 50 mm
Focal Length (mm)

Max Aperture (f)

Min Aperture (f)

Aperture Blades


Sharp (Near)

Sharp (Far)

Rear Mount

RF/L Extension (mm)

Flange-Focal Distance (mm @ ∞)

Serial Numbers


  1. 16:9

    Je ne sais quoi where to begin reviewing this petite Parisian optic with its chic 12-blade diaphragm. Like a 2CV it’s mechanically as simple as possible and it goes a long way on just a pair of elements. Perversely it’s sharper at long distance than close-up.

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