41mm-49mm Step up Ring Adapter

Switar 41mm-49mm Step up Ring Adapter

Works with Switar 50mm , Switar 75mm &  Pizar 50mm Prime Lenses

41-49 Step Up Filter Ring 41mm x0.75 Male to 49mm x0.75 Female Lens adapter

Have all your prime lenses set up with 49mm threaded fronts for better filter compatablity, Lens Not Included