37mm clamp to M52x0.75 female thread adapter (step-up ring) for Kiev-16U lenses

• Front side - M52x0.75 female thread
• Rear side - 37mm inner diameter
• Max. diameter - 55 mm
• Weight - 11 g

This adapter allows using sdandard 52mm screw-in filters on Kiev-16U lenses.

Secured with 3 set screws by meas of allen key (included).

This design avoids vignetting increase that is quite important for these 16mm format lenses, especially for 12mm and 20mm ones.

Made of anodized aluminium.