Please give your opinion (based on experience or not)!
I have an A7m2 and an A6000 along with Zeiss 55mm F1.8, Sony FE24240... and a bunch of good E-mount glass as well as lots of A-mount Sony & Minolta lenses.
I can get a used Sony SAL 70-200mm F2.8 for about $1250. For the same price I can get a new SEL 70-200mm F4.
I mainly shoot events and portraits and I already have Sony's LA-EA3 and LA-EA4 adaptors.
Which would you get? Or perhaps something else? e.g. (Sigma 70-200mm F2.8—$1,100 new, $800 used)
Thanks!