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- Aug 16, 2012
Canon RF 24-105mm f/4-7.1 STM IS - Review / Test Report
Klaus Schroiff doesn't mince his words over this one on one of my favourite review sites.
“If you purchased an R5 with this lens, you are nuts. In real life, this lens is used on entry to mid-level cameras with a resolution between 20-30mp. And this is putting much less stress on the lens quality. At 20mp (e.g. the EOS R6) you could mount a coke bottle and the results would still be mostly Ok (sort of). Below are the MTFs (auto-corrected) based on the 30mp sensor of the original EOS R. So as you can see, the results aren't QUITE as embarrassing as they are on the EOS R5. Even the corners are still fairly good. Longer focal lengths are perfectly fine on lower resolution cameras anyway. “
“In absolute terms, it's clearly a sub-standard lens. Its native characteristics range from good to downright terrible. The miserable vignetting and distortions have to be seen to be believed. Conversely, the resolution is actually pretty decent - which is a bit of a pity because you just won't use this lens without auto-correction. “
Mind you, it doesn't look any worse than his testing of the EF 24-105mm f/4 L II at 50 Mpx.