Maureen Souza wrote in post #18536614
So has anybody used this lens on the 5D4 with a 1.4 teleconverter? If so, post some pictures please. That will be my next test after the rains clear out...maybe this weekend.
My 1.4xIII is glued to my 5dIV 100-400 II combo! I've posted lots on this thread of the combo, works wonderfully, but it does come down to lighting/atmosphere/technique like everything. Center point focus is my go-to 90% of the time, using the most contrast area near the birds eye in bad light helps immensely and also pressing the shutter button halfway down to make sure you do indeed have proper focus rather than the spray n pray as it won't always refocus correctly in those cases, sometimes it does/sometimes it doesn't.
For me, I simply enjoy the editing process much better on full frame over crops, but I've not used the newer 80d, and lets hope this alleged 7dmkiii has the same or better efficiency as the 5dIV, and that will prove to be probably the go-to for bird chasing.