This adapter provides 95mm outer diameter for matte box coupling. Also, it has standard M86x1 filter thread on its front side.

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.

Made of anodized aluminium.