Zenitar-M 50mm f/1.7 Triangular bokeh M42 SLR №792680

Zenitar-M 50mm f/1.7 Triangular bokeh M42 SLR №792680

The lens aperture has been modified to provide control over bokeh formation, from smooth, even blur at wide apertures to out-of-focus triangles when stopping down.

This lens is fully serviced in my workshop using modern lubricants. Glasses are washed with Zeiss cleaning composition.  Better than new