I ordered the Hoocap Lens Cap Lens Hood with automatic lens cap for my Always plan EF-S 18-135 STM to test and am thrilled. Finally, the hassle of finding falls away after the lens cap and Geli. The Hoocap is handled properly, jumping by spring force when pressing on knobs and when they snap shut again it remains to and will not start by itself again. Thus, for me the perfect complement when traveling and on the go. A small disadvantage is the whole thing, if the lens loose and is transported vertically with mounted Hoocap in the camera bag, it takes through the larger radius of Hoocap in the camera bag away more space. But I think that you get organized. For my part I'll definitely keep. In this sense ... and always a lot of light ...