A look at the Canon RF 24-105 F2.8L IS USM Z MTF

[YuengLinger]

I just don't see this being worth it with this lineup. However, if I was in a whole different category of photography, say landscape photography or just doing simple 1-lens corporate events, this lens would be very appealing. For a wedding kit, I would say this lens would allow one to really shake up the lineup:

16mm 2.8 (for extra wide shots of venues)
50mm 1.2
24-105, covering most of the day.
135 1.8
R5.

The R5 would be important with the 135mm, as you could set the button on the side of the lens to switch between full frame and 1.6 crop mode, instantly turning the 135 into a 216mm @ 17megapixels. It would take the place of the 70-200 this way. This whole kit would fit in a small bag.

I don't think the 135mm 1.8 would take the place of the 70-200mm f/2.8 by throwing away pixels. I only have the EF 135mm f/2, but my 70-200mm at f/2.8 produces nearly as much background separation and smooth bokeh as the 135mm at f/2. I could see, though, where the 135's extra stop of light would be helpful in many venues.

Plus you get REAL extra length if you want to go to 200mm. And versatility. Can't always zoom with feet, so the 135mm would have to be for planned setups, right?

 

[koenkooi]

That's what I am hoping for. and no focus breathing creating issues will be huge for this (if true). I have missed shots because of focus breathing. Even other brands that have "focus breathing corrections" still have that issue. So I'm hoping this solves focus breathing issues, so I am missing less shots.

When you say 'focus breathing', do you mean 'focus shift' or 'non-parfocal' instead? Focus breathing affects framing, not focus.