topic Re: RF-S 18-150mm for R5 in Gear Guide

Experience or opinions on RF-S 18-150mm for R5?

BrighamBB — Tue, 23 Sep 2025 14:38:56 GMT

I have been working my EOS R5 with EF glass for a while now and it's time to move into RF glass and take advantage of the full frame. Does anyone have experience or opinion on the RF-S 18-150mm for the R5?

My current favorite lens is the EF-S 18-55mm and it is my go to on every trip. I am thinking the 18-150mm would really suit my approach to my compositions and subjects without the need to change lenses as often to my intermediate zoom. I am primarily a landscape guy and I like the advertised range and results I have seen with the RF-S 18-150mm, but wanted to put this out there for the community and hear if anyone has direct experience with this lens and the R5 platform. Thanks everyone. Photo is just for fun.

Brigham

Re: RF-S 18-150mm for R5

Waddizzle — Sun, 14 Sep 2025 13:51:24 GMT

EF-S and RF-S lenses are designed for crop sensor camera bodies. They project a smaller image circle, which doesn’t fully cover a full frame image sensor.

Using a Canon crop sensor lens with your full frame sensor Canon camera will cause the camera to automatically crop the image to a much lower resolution, using only the center portion of the image sensor.

Re: RF-S 18-150mm for R5

shadowsports — Sun, 14 Sep 2025 13:54:17 GMT

Greetings,

I wouldn't bother using a RF-S lens on a full frame body. It takes your image resolution from 45 MP to 17.5 MP. In some instances, this might not be a big deal depending on what you will do with the output, but this is not something most would choose to do. Instead, I'd purchase full frame lens (maintain versatility) and reduce capture resolution in camera or post if desired.

Re: RF-S 18-150mm for R5

ebiggs1 — Sun, 14 Sep 2025 14:00:20 GMT

I am another no for using that lens. Save your money and get a lens that's really and actually designed for the R5.

Re: RF-S 18-150mm for R5

BrighamBB — Sun, 14 Sep 2025 16:46:36 GMT

Thank you!

Re: RF-S 18-150mm for R5

BrighamBB — Sun, 14 Sep 2025 16:46:44 GMT

Thank you!