The foundation is threaded onto the front filter thread of the spotting scope, onto the lens hood, and thus cannot be lost like the conventional caps that are included when the tube is new. With built-in strong elastic bands that hold the lid in place. When using the tube, simply lift the cap away and let it rest either on the top or bottom of the lens, the cap is designed to naturally fall into place. If necessary, an optional extra filter can be threaded onto a second thread at the front of the foundation. The cover can NOT be combined with an emergency bag, it will be too cramped in the bag.
Product information
Weight: 97 grams