To the side of cameras: 37mm
To the side of lens: 30.5mm
Allows the use of 30.5mm filters or accessories on lens threaded for 37mm.
Made of anodized aluminum which is durable in use.
Useful and helpful gear for you to save money to buy extra filter lenses.
Weight: 8.56 g
Size: 44*0.6 cm
1 × 37mm-30.5mm Anodized Aluminum Step-down Ring Adapter for Cameras