I have converted my outstanding Olympus Zuiko objects on Hama lens cap, as the Olympus cover are too delicate, have only one outside handle and not könnnen be operated eg with gloves. Hama or Meymoon lid can highly recommend the price and the functionality ago: they are crisp and have an indoor and outdoor handle. In addition, a thin cord cord is included, which can be attached to the camera, for example - so the lid will not get lost.