I recommend this purchase to put in the loop of old Minolta lenses 30 years with a SONY housing (which bought Minolta). It all comes back "any manual" - the old but very old then - because no electrical transfer. For 40, it is worth buying without breaking the bank. But as always brightness is lost with this kind dintermédiaire as doublers eg. By cons everything is black and white: no colors (or I did not know). Finally, think about the hyperfocal with F8, for good lovers. Pro already knew.
