I used the adapter to adapt an MC Rokkor - PF to Canon EF which works perfectly and the adapter is of good quality (would give 5 Points upon this) but ... the adapter has no corrective lenses which causes you the capability to focus to infinity. This was descibed but with my lens combination I can only use the range of 0 to approx. 20cm Distance, anything beyond can not be focused and is completely blurred.
it doesnt focus anymore with the minolta lens. does not work. not recommended.