Peter Connan wrote:I read one review of this lens that said the AF is inclined to hunt with the D7000, but is much better with the D7100. Something about the lens not liking the older focus system.
If this is true, the same is very likely with the D5100.
I spent a few hours in Marievale's Hadeda hide last Friday next to a guy shooting a D750 with the Tamron lens. I did not get to see any of his pics, but he was getting way more shots in on passing birds than I did (D7000 + Nikkor 500mm f4). But there are LOTS of factors at play here that have nothing to do with focussing speed...
Could be! The D5100 uses the same sensor and focusing system as the D7000! I'm looking to get a D7200 when it eventually arrives - rumour has it that the announcement will be soon.
I was at Rietvlei in the Island View hide on Sunday morning, lots of machine gun sounds from others in the hide - I had the same feelings of inadequacy

Hunting cannot be considered a sport as all contestants in a sport should know they are playing the game!