That focal length sounds about right. I was hoping for a 70-180mm F2.8 STM offering, kinda like Tamrons lens. But since the Tamron weighs 910gr and the other f2.8 STM lenses are between 445-490gr, I figured they'd have to cut some focal length in order to trim some weight. A 500gr lens probably fits better for the R8.
I´m personally interested in the 2.8 STM lenses. If and when I finally pull the trigger on the R8 as a second body, I´d probably get the 28-70mm F2.8. For the third rumored lens, sacrificing 50mm focal length (compared to my 70-200mm F4 L) does sound like a lot to give up.
Two questions to R8 owners:
Has anyone used the R8 with either the RF24-105mm F4 L or the 70-200mm F4? Also, how is the 100-400mm on that body?
I´d use the R8 with the RF 16mm, 35mm (maybe 28mm if I can get it at refurb price) 85mm F2 (if I keep it) and need something in the standard telezoom area...