Sensei 55-49mm Step-Down Ring 3mm 4 mm Eye Relief 22

4  mm Eye Relief 22  mm Interpupillary Adjustment Not Specified By Manufacturer Dioptric Correction Not Specified By Manufacturer Focus Type Center Tripod Mount Yes (Adapter Optional) Dimensions 5

1 Achromatic Refractor

When the switch set is separated from each other the contact is broken and triggers an alarm

For those who desire a sleek

Sensei 55-49mm Step-Down Ring 3mm 4 mm Eye Relief 22Use 49mm Filters on 55mm Lens Metal Construction Black Anodized Finish The Sensei 55 49mm Step Down Ring is a step down ring permitting the use of 49mm threaded filters on a 55mm threaded lens. This black anodized metal ring provides a durable solution for using one size of filters with various sized lenses. UPC: 847628537279 Size 55 49 mm Material Aluminum alloy Packaging Info Package Weight 0. 3 lb Box Dimensions (LxWxH) 2. 1 x 2. 1 x 0. 4" All