The assessment refers only to those referred to above adapter. For my rare photo opportunities of the adapter to my Olympus fits beautifully because it has no influence on the light intensity of 2.8 my camera Stylus 1. The camera has an adequate zoom. The adapter is thus used only after previous precise considerations. Very bad, I find that there is no end cap for the external thread side equal with. Means improvising, since the adapter ring is firmly screwed with me with the Olympus TCON-17X Tele Converter BLK. Otherwise it would not work well on the stylus. 1