billnikon wrote:
GROUP AUTO FOCUS is a exclusive focusing system found only on upper Nikon models, D810, D750, D4s,D610?, D500, and D5. I use this primarily on moving birds. You pick any one of the focus points you want, I use the center spot, then Nikon puts four more spots around that one, so you are using 5 focus spots. The Group auto focus tends to ignore background clutter when shooting moving objects, which in my case is moving birds in flight. I have gone from a focus rate of 75 to 80% to over 97% and better with the group auto focus system. I have owned Canon and currently own both Sony and Nikon. Now the Sony A77II has excellent focus systems built into it but it just cannot keep up with the Group Auto System found on my D500, which has the same focusing system software as the D5 ( a $6500.00 camera). I have shot wildlife almost every day for the past seven years and have never had a better focusing system than the GROUP AUTO SYSTEM found only on Nikon DSLR cameras. Now sometimes when shooting a bird in the bush (pardon the pun) the group auto system will pick out something other than the bird, in that case I have my auto focus lock button on the back of the camera programmed for just the center spot, I just push that, put the center spot on the bird and it comes in focus no matter what is around it. Now, this has been my experience only, others will swear by their system, but for me, I have found none better.
GROUP AUTO FOCUS is a exclusive focusing system fo... (
show quote)