[Klaus]

... without a single UD element ...

And the MTFs....

https://personal.canon.jp/product/camera/rf/rf75-300-f4-56/spec

[Rover]

What kind of UD elements can be expected? This is the old coke bottle lens re-released with a built-in adapter... and not even the (micro-)USM version of it. Lots of people will be force-fed this via the "double kits", then become put off photography for good by seeing the soft and blurry images from using this lens on non-stabilised Canon bodies (since Canon also skimps on IBIS for anything that isn't at least mid-high range).

Heck, I'm glad I steered well clear of the RF system.

[MLonlooker]

What kind of UD elements can be expected? This is the old coke bottle lens re-released with a built-in adapter... and not even the (micro-)USM version of it. Lots of people will be force-fed this via the "double kits", then become put off photography for good by seeing the soft and blurry images from using this lens on non-stabilised Canon bodies (since Canon also skimps on IBIS for anything that isn't at least mid-high range).

Heck, I'm glad I steered well clear of the RF system.

  Was it called a coke bottle?  ..... with its elegant spiral neck and embellishments the lens looks nothing like one .......

  my guess it was called a coke can .......... 

     .... and how could Canon be proud of those MTF charts?

[MLonlooker]

Sorry that was an woopser .......

[Rover]

I think the link is wrong because it's the link to this same thread. But I guess nothing good would be found during that review anyway. I held that lens (and made some shots with it) twice, and it was twice more than I would have liked.

[MLonlooker]

try this link:

https://www.youtube.com/watch?v=oeFeilzUYq4


or this one:

https://www.youtube.com/watch?v=h4lKsyb4UeQ&t=5s