EOS 7D Mark II not focusing with Tamron and Tokina lenses

[afenton]

Canon 7D MK2

Two holidays last year were 'ruined' by the results of my photos.

Used centre-weighted setting but with a couple of lenses the camera was obviously struggling to focus; one was a Tamron 70-20 and the other a Tokina AT-X 28-70. I've had Tamron check for faults with an inspection and test - they found no fault. I took some photos where the focus point in the viewfinder was just a single square in the centre; I think that these photos are the ones that were pretty awful, with no focus to speak of.

Any advice?

Thanks.

[afenton]

Since all this started, I feel like I'm going back to basics - which I suppose I am, somewhat.

Thanks for the link. I watched the other three and will watch yours too.

Andrew

[afenton]

... and again, thanks for the help.

[Waddizzle]

Here is very brief overview of the 7D Mark II camera body.  He briefly discusses metering.  The entire runtime of the video is about 31 minutes.  Most of his videos of this are about 90 minutes.