Sensei PRO 52-55mm Aluminum Step-Up Ring Celestron 72030 It bridges the gap between

It bridges the gap between a 2

42mm Objective Diameter

Lever Locking Mechanism

0 port and allows you to connect a standard RJ-45 Ethernet cable to deliver Internet and network access

Sensei PRO 52-55mm Aluminum Step-Up Ring Celestron 72030 It bridges the gap betweenUse 55mm Filters on 52mm Lens Knurled Sides for Firmer Grip Matte Black Finish Minimizes Reflections Corrosion Resistant Hard Anodized Finish The Sensei PRO 52 55mm Aluminum Step Up Ring permits the use of 55mm threaded filters on lenses with 52mm filter threads. It has large side knurls to provide a more textured grip when mounting or removing it from a lens. This step up ring features a lightweight, aluminum alloy construction that has a corrosion