u/Affectionate-Big5777

Hi fellow canon owners! I've owned my r50 for a while and it's done great for what I use it for which is diving with my nauticam rig which is centered around the 18-45 that came with the kit. I'm trying to get into some more above water photography and I'm looking at some of these ultra zoom lenses and wide angle lenses and some are just as much as the camera specifically the ones from canon. Does anyone have any experience with aftermarket lenses and if so please leave some recommendations preferably of ones that won't break the bank! Thank you.