Normally it is not used alone. If you have owned Techart LM-EA7/LM-EA9 ring adapter, which is able to turn any manual lens into an AF lens, then you could buy more such compatible mount adapter to fit more and different mount lenses. If you do not have the LM-EA7 yet, please refer to above link to buy.
If you also have FD/E0S/MD/M42/PK/OM/AI/AI(G) mount lenses, you could think about theseRing Adapters as follows, to use with LM-EA7 for auto focus. Add LM-EA7 and follow ring adapter into your cart and pay together:
CAN0N FD-LM, CANON E0S(EF/EF-S)-LM, NIK0N F AI-LM, NIK0N AI(G type)-LM, Minolta MD-LM, M42(42mm thread)-LM, PENTAX PK-LM, 0lympus OM(old 4/3)-LM
Please note:
Also fit to VM/ZM lenses and other E/FE mount cameras, but not guarantee it will work perfectly with all manual lenses and all E mount cameras. Please allow the not perfect fact because of too many different manual lenses in the world.
Include:
1 X Ring Adapter
(Techart LM-EA7 is not included)