Good fitting, lightweight, impact resistant lens caps ought to be fitted to any valuable lens. You don’t have to put up with second rate or “found” caps, jar lids, or wrong sizes.

Our lens caps are cut from a solid piece of acetal Delrin. This plastic is quite slippery with a low coefficient of friction allowing for easy installation. Using solid stock means the center will not press in and contact the surface of the glass as is a problem with the ordinary injection molded caps usually supplied with lenses.

The outside dimensions are turned to create a lip for gripping, while the inside is bored out to a very specific diameter. The inside edge then has a series of grooves in the sides. This provides the last adjustment of tension and a channel for air to escape a suction effect.