Olympus Automatic Lens Cap LC-37C is originally for Olympus 14-42 EZ. But, I tried it to 17mm F2.8 Pancake and it was very successful and make that lens more convenient. Further I tried using LC-37C on Panasonic 12-32 which is very small but somewhat inconvenient because I have to do two jobs for making the lens ready - removing the lens cap & turning the zoom ring - whenever I turn on the camera. The result is really successful. LC-37C works pretty well with Panasonic 12-32. Now I don't need to remove lens cap. Just turning the zoom ring when I turn on the camera is OK. Zoom ring is at its "parking" position. Then the cover of lens cap stays closed. Unfortunately the "ears" of LC-37C are not arranged horizontally. But, it doesn't affect its usability at all. So there isn't any problem. The cover opens when I turn the zoom ring from "parking" position to "12mm" position. Because Panasonic 12-32 is not an electronic zoom lens, the cover doesn't open automatically as it automatically opens when used with 14-42EZ and 17mm pancake whose inner body extends electronically. To make the inner body extend, I have to turn the zoom ring manually, from parking position to 12mm position and then the cover opens. But, using LC-37C is still much more convenient than using its original lens cap. (I slightly modified the text for avoiding confusion.) Parking position. The lens is ready when I manually turn the zoom ring. There are two switches at the ears of LC-37C. The position of those switches perfectly fits for the size of Panasonic 12-32. Top view. Parking. Top view. Ready. LC-37C made Panasonic 12-32 much more convenient. I think that Olympus did really good job, although Olympus doesn't tell that LC-37C can be used with Panasonic 12-32 and Olympus 17mm F2.8 Pancake.