my 70-200mm F2.8 testing shots...
sharp lens, good color, fast focus... but a bit heavy..
iso 100, F2.8, 1/100sec, flash ( bounced ), 70mm focal length.
300mm is good for events and sports, but still a little bit short, have to use 1.4TC everytime.
Now my lens are all zoom and AF liao, no more manual or old lens liao.. going for the practical ones now.
Sigma 10-20mm F4-5.6
Tamron 28-75mm F2.8
Canon 70-200mm F2.8
I think I have covered all range liao, time to forget about buy/sell for a long time and concentrate on shooting liao.