All Novotron Lens adaptor rings retain the lens ability to focus on infinity. They do not transmit any functions between the body and the lens.
Most cameras provide the ability to do "stopped down metering" with the diaphragm stopped down or allow an aperture priority automatic exposure, so the Lens adaptor ring will allow you to end up with a correctly exposed shot with the use of lenses from other manufacturers on various cameras.
Reviewed by 1 customers
High quality product but arrived without any instructions. Took several minutes to discover how to remove the product from the lens.