Industar-105U 4/50 M39 enlarging lens

Specification:

Focal lenght, mm:50

Lens fitting: M39x1

Aperture, mm: 4

Mount type: screw mount M39

Note: when installing through the normal adapter M39-Nikon, M39-Canon, M39-Pentax, Industar-105U 4/50 M39 enlarging lens hurt mirror cameras, as it has a huge overhang the rear of the helix. The rear of the heavily favored. The lens can be used on a narrow format (on conventional crop cameras and modern full-frame SLR cameras) only with the macro tubes or macro fold bellows.