I need to visit Mark.

Any idea what this lens would be like for sports? I'm gearing up to get an indoor 24-70 sort of lens. Was thinking EF-S 17-55, then EF 24-70, then RF 24-70, and then I see this thread...

Anton,
My opinion is that while the RF 28-70 would have the optical performance to photograph sporting activities, its great mass/ weight may make a much lighter lens (in the similar focal length range), a better choice for sports.
I used to participate in the shooting sport USPSA/IPSC, where the weight and balance of the pistol had a huge influence on the speed that targets could be engaged. If the pistol's front end was too heavy, they would not
"stop on a dime" and a shooter would have to counteract a heavy pistol's momentum. If you look at the first post in this thread, you can see that the RF 28-70 is a big lens for its focal length range, and spec sheets will indicated its great weight. For sports photography, my opinion is that the RF 24-70 would be better suited in dynamic situations; less momentum.
This lengthy review states that the RF 28-70 is 30% heavier than the RF 24-70:
https://www.littlecarphotography.com …vs-rf-28-30-aka-the-beast![]()























