Reverse M49x0.75 male to M42x1 male thread adapter

• Front side - M49x0.75 male thread
• Rear side - M42x1 male thread
• Distance between flanges - 4 mm
• Weight - 20 g

This adapter allows mounting a lens with M49x0.75 filter thread to M42 camera (Zenit, Praktica etc.) or macro tubes/bellows for macro purposes.

Cheap and effective solution for your first steps into macrophotography world.

Made of anodized aluminium.