Sigma APO 50-500mm F4-6.3 EX DG HSM
Both are Rear Focusing and 86mm. This one can have longer coverage and can use TC well. But unless u r mounting on tripod, both won't be a good choice. I tried both during the show that day and decided to forgo the choice for Sigma 80-400mm OS.
Simga APO 80-400mm F4.5-5.6 EX DG OS
So far, this's the only Sigma lens with OS. Rear Focusing with 77mm. Good choice for coverage and can use with TC. Cost around 1.8K at MS color. For me, I going for Nikon as it's an identical range and strength. Around 500 bucks difference.
We'll work out the workflow on that day so that there's no overlap and good coverage of the concert.
Ok, never use monopod but can try. Oh, will burn a copy of the pics i took for the graduation for u.
Canon 600mm f4 IS
Buy Buy Buy?