Quote Originally Posted by Kayaker72 View Post
So, my takeaway is more that the PDAF on the 1DX III has impressive low light abilities. Actually outperforming it’s spec. Considering how incredibly dark these rooms were, I am absolutely fine with the R5’s performance. Sent from my iPhone using Tapatalk
Indeed, and it is possible I did something wrong or there are some setting I could have done differently.

But as you said these are incredibly extreme examples and hardly can be considered poor performance if it can't focus. Although I do shoot sometimes in very dark situations. So having this low light capability is actually pretty handy for me.

What was impressive to me was how easy it was to focus. It had no issues whatsoever and it was like another day at the office for the 1DX III. It just blew me away. My 1D III wouldn't even dream of focusing at such low light levels. So the fact it didn't focus in live view didn't disappoint me, but it sure as hell shocked me when in PDAF it just locked on with no issues.

But it is good to know the R5 seems to do better at least in the low light department.

Funny how our pets becomes our test subjects.