Here's what strikes me as odd, as a bit of a let down from their former standards: "We had some trouble with the AF and IS combined with the EOS R but this has probably been fixed with a firmware update that came in after we finished the test already. "
But they seem to suggest they have also tested it with the R5 or R6? So why write as if they are in the dark at 500mm? And why would they publish the review without having tried the updated firmware which came out weeks ago? Are they just mad the firmware update came out after they'd put in the time and effort? In any event, their conclusion creates confusion! (Almost as if they didn't want to discourage Canon customers from clicking buy-links, but just weren't willing to try at 500mm again with new firmware.)
I see now, after doing a few tests of my own, how much work can go into them. But I don't run a website dedicated to tests and reviews! And this is a very expensive lens in high demand.
Judge for yourselves...
Canon RF 100-500mm f/4.5-7.1 USM L IS - Review / Test Report - Sample Images & Verdict (opticallimits.com)
But they seem to suggest they have also tested it with the R5 or R6? So why write as if they are in the dark at 500mm? And why would they publish the review without having tried the updated firmware which came out weeks ago? Are they just mad the firmware update came out after they'd put in the time and effort? In any event, their conclusion creates confusion! (Almost as if they didn't want to discourage Canon customers from clicking buy-links, but just weren't willing to try at 500mm again with new firmware.)
I see now, after doing a few tests of my own, how much work can go into them. But I don't run a website dedicated to tests and reviews! And this is a very expensive lens in high demand.
Judge for yourselves...
Canon RF 100-500mm f/4.5-7.1 USM L IS - Review / Test Report - Sample Images & Verdict (opticallimits.com)