Sensei PRO 49-77mm Aluminum Step-Up Ring Tiffen 82R23A The TrailSeeker 65 has a

The TrailSeeker 65 has a nitrogen-filled waterproof housing that won't fog up in humid conditions and features a sliding sunshade to keep glare or raindrops off the objective lens

Use it to remove residue from your iron tip before soldering

you are more than likely to adapt another

Electrical Properties:

HookupGuide

Sensei PRO 49-77mm Aluminum Step-Up Ring Tiffen 82R23A The TrailSeeker 65 has aUse 77mm Filters on 49mm Lens Knurled Sides for Firmer Grip Matte Black Finish Minimizes Reflections Corrosion Resistant Hard Anodized Finish The Sensei PRO 49 77mm Aluminum Step Up Ring permits the use of 77mm threaded filters on lenses with 49mm 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