The adapter holds what he promises is secure and does not wobble. Robust design. No information is transferred from the lens, so just shoot in A mode (Aperture priority), there appears no aperture, only the exposure time. The metering works quite well, only has to be corrected depending on Obejktiv by a constant value, a maximum of +/- 1EV. Good instructions and comparison of individual images OM lenses can be found on the Internet. Similar adapters are cheaper in other places also well 10, but I've decided to enjoyyourcamera.com, as it is a reputable shop and various adapters for some time in the offer has.