mmurph Offline Upload & Sell: On
|
I tested my 7DII using Focus Tune, in 10 shot "Shot to Shot Consistency" mode. That gives you the shot to shot variance from best focus. You could also use FoCal to get similar, specific, data driven feedback.
I found the shot to shot variance high with some settings. Changed settings, reshot, etc. Somewhere in the process my consistency got much, much better!
Unfortunately, I was changing a setting, taking 10 shots, changing, taking 10 more shots. Then processing in groups later. I thought I knew what I changed, but folks here said that only affected live view shots (the "Continus AF" setting.)
Like all trouble shooting though, you need to eliminate variables, change 1 thing at a time, and look at the good data.
I shoot my 7DII wide open in Servo AI all of the time, using any of the 65 points. It is very, very reliable. The best camera I have ever owned for AF consistency.
I have repeated the tests with many other cameras. Surprisingly, a lot of the mirrorless cameras I tried had large shot to shot variance, despite the "common knowledge" that sensor based AF is more accurate. That was true of my Sony A6000 and my Panasonic G7. It may be a specific combination of settings.
These complex devices. The 6 Sigma motto is: "Data Driven Decisions." Good data is critical!
When I have time, I will try to go through my 7DII settings again with FoCal or Focus Tune. It is time consuming!
Good luck.
|