M42x1 macro ring with adjustable bronze insert

• Front side - M42x1 female thread
• Rear side - M42x1 male thread

Added optical path is 7 mm.

This ring can be used to take macro pictures.

The adapter consists of two parts - a body made of anodized aluminium and bronze insert.

Such design allows positioning of your lens correctly - just loose three set screws, turn a lens together with insert to convenient position, and secure the screws again.