Lens to pair with RP for travel

[Minerve101]

Fast Glass, thanks for your further thoughts. And by the way, congratulations on your 300mm f/2.8 IS, which I have rented in the past and found a great lens.

For a trip by car to a national park, I am completely with you. I usually would carry the EF 16-35mm f/4, the EF 50mm f/1.4 and the EF 70-200mm f/4 IS for such an occasion, with a 5D body. I might carry that for 2-3 hours, then back to the car.

The trips I was envisioning would entail 10-12 hours a day on my feet, with occasional short breaks for a light meal or coffee. Then "rinse and repeat" for several days in a row. And I think you are younger than I--the big 70 is looming! So size and weight become important to me.

I realize the standard answer is to learn to love the RF 24-105mm f/4-7.1, by liberal use of texture and clarity sliders in Lightroom. Still tempting to use the 28mm as main go-to with the 50mm f/1.8 as the alternative.