Samyang 12mm infinity a5100 vs a6000
I have a Samyang 12mm. A month ago i had a5100 and infinity focus was not correctly set (very know problem) an it ocurrs in intersection of the L inverted symbol aprox. Now i have a6000 and when use my Samyang copy on a6000 infinity ocurrs exactly on the infinity mark, not before of it like in a51000. Is this beaviour normal? How can i test if in a6000 infinity is not really focused at all beyond the stop ring point?