Originally posted by Shanti The Sigma 150-500 is not good at 500 from what I've seen.
Originally posted by boriscleto I think it's just fine.
To each his or her own I suppose.
Anna's Hummingbird
Canon 5DM3, Tamron 150-600mm @ 600mm, f6.7 @ 1/350, ISO 1600
M
---------- Post added 08-29-2014 at 12:17 AM ----------
I serendipitously spied this GBH while I was seeking out songbirds at the Nisqually National Wildlife Refuge about a month ago. I was relatively close enough to fill the frame at 450mm and didn't want to spook it with noisy lens operations. I've lost a number of bird shots due to obnoxious Sigma lens racking, but fortunately the Tamron ultra-sonic whatever-it's-called motors are super quiet. Great Blue Herons are quite common and easy shooting where I live, but the position of this one was worth my concentration. It was somewhat overcast, so the lens' IS ("Vibration Control") was actually useful at 1/180 (since I try to shoot at fast speeds, I rarely use the VC).
GBH
Canon 5DMK3, Tamron 150-600mm @ 450mm, f6.7 @ 1/180, ISO 1600
M