I purchased a ms Sonnetar from what I thought was a reputable seller in Japan with worldwide profile.
The lens arrived in reasonable time. However the lens would not correctly mount and brought up incorrect frame lines. I had Avery difficult time establishing coomunication with seller who attempted to instruct me in procedure of self repair..by email, which I reluctantly tried, and did not work. Next suggestion to take to local camera tech at my expense. Never offered to take back lens for repair or exchange...and expectation all that might occur at my expense as well as long process.
The lens could be fine but if mount not good......how can I trust?
Maybe I am wrong but I assumed that legit sellers support and back products they sell ,especially if defective but some apparently have little interest in customer satisfaction.
Hap