I've been considering for some time how to upgrade my sports and wildlife kit. I shoot mostly wildlife (birds primarily), along with some field sports, and a bit of landscape and this and that. My current kit is a 6D and a 7D. For field sports I use the 6D on a 300 2.8 is and the 7D on a 70-200 2.8 ISii. For birds, I use the 6D on the 300 with a 2x tc ii. I migrated from the 7D for birding because I was never that pleased with the AF of the 7D, and found the images too noisy at ISO 1600+, particularly if cropped. The 6D's IQ just seemed so much better...
I've been eyeing 1D mk iv's as a logical upgrade for the 6D for birds, and as a primary body for field sports, with the 7D as a 2nd body on the 70-200. What I want from my upgraded is: Dead-nuts AF including accurate AI servo for flappy birds flying toward me, a high frame rate, and better IQ than the 7D, esp at moderate-high ISOs. But with prices for used Mk iv's staying stubbornly around $3k, I couldn't make myself pull the trigger.
Now, the new 7Dii has me intrigued. Is the AF as good as hoped? Is it at least the equal of the Mk iv? With two DIGIC 6's at its disposal and f/8 AF capability, hopes are high... And what about IQ at ISO 1600 and further North? I've gotten used to the clean files of the 6D, and would not expect the new 7D to equal that, but if noise is 1/2 to 1 stop better than the 7D mk i, I could see pulling the trigger.
Advice from this forum? Anyone used the new 7D? It just seems so promising....