Curious if anyone has experienced any focusing issues combining a 7Dmkii with a 1.4xii extender on a 70-200L 2.8ii lens? I've shot sports for years, something north of 500k images so I do have a little experience but yesterday was the first time I used my new 7dmkii in this combination and find a fairly high OOF rate. I'm often shooting bursts of 3-7 frames and in some cases, only -some- of the same burst images are OOF, and in other cases the entire burst is. In the past with a 1Dx or a 5Dmkiii, I will have some of course, but this almost feels like a setup issue or even more possibly, a conflict between the two pieces. The OOF rate is probably around 10-20% if I had to put a umber on it where if I use a different lens like say, a 100-400L v.2, it's more like 3-5%.
The 1.4xii + 70-200 combo on the markiii doesnt have the same issues - it's only the 7D that is seeing it happen so I think I can rule out the lens and extender.
Thoughts?
Experiences...?
~curt
The 1.4xii + 70-200 combo on the markiii doesnt have the same issues - it's only the 7D that is seeing it happen so I think I can rule out the lens and extender.
Thoughts?
Experiences...?
~curt