19/04/2026 5:30 am
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RF Mount Camera & Lens Forum
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I just picked up a used Canon R50 for a hiking trip to Zion next month and I'm really struggling to figure out which wide angle lens to get without blowing my whole vacation budget. I've only got about $350 left to spend on glass.
I keep seeing people recommend the RF-S 10-18mm f/4.5-6.3 but honestly the aperture looks so slow. I'm worried it's gonna be useless if I'm under some tree cover or if the sun starts going down behind the canyons. Then I looked at the RF 16mm f/2.8 prime because it's cheap and small which is great for hiking, but since the R50 has that crop sensor, the 16mm is actually more like a 25mm or 26mm and I don't know if that's even wide enough to capture the scale of the cliffs there. It's all a bit confusing with the math and everything.
Is it better to have the zoom range even if it's a dark lens or should I stick to a prime and just hope the field of view is okay? Are there any third party options I'm missing that don't need a bulky adapter? I really want something lightweight but I don't want to regret my photos once I get out there...
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19/04/2026 5:30 am
Honestly, for Zion, you really want that extra width that the Canon RF-S 10-18mm f/4.5-6.3 IS STM provides. I know the aperture specs look a bit disappointing on paper, but I have been very satisfied with how it performs for landscape work. Since the R50 has a 1.6x crop factor, that 10mm focal length gives you a 16mm full-frame equivalent field of view. Thats crucial when youre at the bottom of a canyon looking up at those massive sandstone walls. If you go with the Canon RF 16mm f/2.8 STM, youre looking at about 25.6mm equivalent, which basically feels more like a standard wide lens than a true ultra-wide. Regarding your concern about the slow aperture, remember that for hiking and landscape shots, youll likely be stopping down to f/8 or f/11 anyway to keep everything sharp from foreground to background. The lens also features 4 stops of optical image stabilization, which works well for handheld shots even if the light gets a bit dim under tree cover. I am quite happy with the way the IS system compensates for the slower glass. It weighs basically nothing, so it wont slow you down on the trails. Within a $350 budget, its definitely the most methodical choice for the R50 system right now if you want those expansive views. The technical data really points to this being the right fit for an APS-C body like yours.
