80mm matte box adapter ring for LOMO lenses with M86x0.75 filter thread

This adapter provides 80mm outer diameter for matte box coupling.

Can be used on lenses with M86x0.75 filter thread.

Known lenses with OCT-19 mount in Konvas housing that fit are:

• OKS1-50-6
• OKS6-75-1

But take care and measure your particular lens filter thread since some of the same model lenses have M85x1 filter thread.

Machined from anodized aluminium.