Conclusion

If you’re a professional photographer who is consistently shooting subjects such as landscapes and architecture, and crucially you’ve got the funds for an expensive like this, RF 15-35mm f/2.8 L IS USM is a bit of a no-brainer. As it goes to a more “standard” focal length of 35mm, it’s also a worth considering as a general or walk around option, too.

That said, as it stands with the bodies that they have, it’s not entirely clear whether there are lots of pro users working with Canon’s mirrorless systems. Perhaps Canon is trying to prove that in the long term at least, it is thinking about this kind of user for its new system.

This lens is lovely and sharp, while also being very good at keeping distortion to a minimum. W’ve been using it with a Canon EOS RP, which arguably is not the best camera to use it with. But even the 30 megapixel Canon EOS R probably wouldn’t even do it justice - perhaps Canon will be announcing something with an ultra-high resolution sensor targeted more squarely at professional users than the existing line-up some time soon.

To that end, the lens is a slightly awkward match in terms of ergonomics with the Canon EOS RP too. If you intend to use this lens, especially for long periods of time, it might be worth investing additionally in the Extension Grip to make for a better balance and overall experience.

The next problem is the high asking price. It sounds like we’re discussing a lot of problems here, but at over £2,300, this is a lens which is very firmly in the “specialist” category, and not one to be picked up on an impulse.

Now to return to the positives. Image quality from this lens is fantastic and if you’re somebody who has a need for an ultra-wide-angle lens for the Canon full-frame mirrorless system, it’s hard to deny just how excellent it is.

If you have the budget to spend on this lens, it comes very highly recommended.

Ratings (out of 5)
Design	4
Features	4
Ease-of-use	4
Image quality	5
Value for money	3.5