15/06/2026 3:31 pm
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Finally bit the bullet and grabbed an R5 for my trip to the Dolomites in October. Im coming from an old 5D and honestly the resolution is blowing my mind but my old EF glass feels a bit soft on this sensor. I spent all night reading reviews on the RF 14-35mm vs the 15-35mm f2.8 and I'm just stuck.
The 14-35 seems perfect for hiking because its lighter and cheaper, but Ive read the software correction for the distortion is pretty aggressive. Then there are people saying the 15-35 is the gold standard for sharpness. Since I have about $2200 to spend and I want to capture those sharp mountain peaks should I prioritize the wider range or the faster glass?
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15/06/2026 4:05 pm
In my experience, the Canon RF 15-35mm f/2.8 L IS USM is the better technical investment for that R5 sensor. Over the years, I have seen how aggressive digital corrections on the Canon RF 14-35mm f/4 L IS USM can impact corner resolution. The 15-35mm gives you native edge-to-edge clarity. Alternatively, the Canon RF 24-70mm f/2.8 L IS USM offers better overall sharpness for general landscapes if you dont mind losing the ultra-wide FOV.
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15/06/2026 4:15 pm
Just looked at my old Dolomites shots and honestly the Canon RF 15-35mm f/2.8 L IS USM is the winner! Used it last year and the sharpness is amazing on that R5 sensor. It really captures those fine textures in the rock faces.
- That 82mm thread fits the Breakthrough Photography X4 CPL 82mm perfectly.
- f/2.8 is basically essential if you want to catch the Milky Way over the peaks.
- Build quality is fantastic for those windy mountain ridges!
2
15/06/2026 3:31 pm
If you're actually hiking in the Dolomites, I would suggest going with the Canon RF 14-35mm f/4 L IS USM instead of the heavy f/2.8 version. I know people worry about the software correction for the distortion, but honestly, it is mostly an issue if you shoot architectural stuff with perfectly straight lines. For mountain peaks and jagged rocks, you wont even notice it after the profile is applied in Lightroom. Be careful with the Canon RF 15-35mm f/2.8 L IS USM because while it is the gold standard, it is way heavier and takes up a lot more room in a hiking pack. Since you are doing landscapes, you will likely be at f/8 or f/11 anyway to get everything sharp from front to back, so paying for f/2.8 is kinda a waste of money imo. You might want to consider how much your neck is gonna hurt after five hours of climbing with that big glass hanging there. Make sure to save some of that $2200 for a solid filter kit too. I would suggest grabbing a B+W 77mm Master 007 Clear Filter to protect the front element from mountain grit and maybe a Hoya 77mm Variable ND Filter if you want those smooth waterfalls. The 14-35 is just more practical for a trip like this and it leaves you enough cash for extra batteries, which the R5 eats like crazy... trust me on that one.
