I recently replaced my 60D with a 70D. I like it a lot, However, my Tamron 18 – 280 will not autofocus at longer zoom range, really anything above about 75mm. Any ideas? thanks.
I'll close this out by saying I talked to Tamron and they assured me that the lens should focus with the 70D, they tested it. I'm sending my lens to them for repair.
