100mm F/2.8 Apo-Macro-Elmarit-R


New Member
trying to decide between the title lens and a Zeiss 100 f/2 MP ZE mount - I am leaning towards the Zeiss, but a little concerned with the different mounts available on the available offerings being sold currently (used ofcourse)
one is a MF3 cam with a Leitax canon mount Serial # 3559692 ;
other is/seems to be a 2CAM with no ROM, according to serial number 3468509 - mint;
last but not least it's another MF3 cam but no adapter - I would buy a Novoflex R to canon EOS adapter.

#2 in mint; the other two are in 9/9+ condition - aside of price is there any other obvious reason I should consider one over the other two?