Great Lens. Especially at the sale price I paid from B and H.
Solid build.

Classic Canon L-Series lens. I purchased this with a sigma MC-11 adaptor for my Sony a7Rii. I was cautiously optimistic given the lens's age and its DxOMark pixel resolution score (16-17MP).

I'm using the lens for landscape photography with some noticeable diffraction above f/11. The f/4 aperture makes the lens much lighter and its age makes it much more affordable than contemporary wide-angle zooms (especially for a mirrorless platform).

Given its price and weight, I'm more than happy with its performance. The landscapes I shoot are for prints. The lens may be holding my sensor back a bit, but if the image is correctly composed with the proper settings, any sharpness can be correctly dialed in in post. Where the a7Rii and Riii sensor can be punishing on some lower-level lenses, I haven't necessarily found that to be the case here. Although if I upgrade to an a7Riv, I'll likely purchase a new primary, while keeping this as a secondary.

I was expecting to utilize focus-peaking in conjunction with a proper depth-of-field in my compositions. However, with the MC-11 adaptor, phase autofocus has been quick and efficient outside of low-light settings (which this lens isn't built for). You'll lose eye-AF as well as tracking, but that's not a problem for me as I only utilize those features in portraiture. Contrast AF is useless, but I generally find that to be the case on most lens platforms.

Highly recommend this lens to anyone on a budget, or for a piece of gear that you don't want to be afraid of getting banged up etc.

This is such an amazing lens for my Canon 6D Mark II. I have wanted to have a wide angle lens for my full frame and this is a fantastic lens at a very good price. It is going to be my go-to lens for group pictures. I am SO glad that I have added this to my gear.

Works perfectly and covers everything I was missing without it.

Got this lens for shooting Real Estate and the 17mm is just perfect to shoot houses and rooms. A some occasion I use it to shoot on the dance floor at weddings. This lens is sharp! It is light and the price is just right, for what you get it is an excellent deal.

good

I purchased this lens for photographing real estate. I needed something wider that provided more options and I really love it so far!

Lens looks brand new and functions flawlessly! Thanks again for another piece of glass!

If you have even wondered about purchasing this lens, now is the time to pull the trigger.


This is a great L quality lens, and the deeply discounted price makes it a no-brainer. You can look at MTF curves, clarity tests, but at the end of the day, it is a Canon L series lens and if it is good enough for Canon to give it that designation, it's good enough for me to add it to my collection.


It's easy to get caught up with the scorecard game, and I have been guilty of spending too much time on DXO looking at scores myself. At the end of the day, the proof is in the picture, and I have yet to be disappointed with my purchase. Great photographers take great photos, and have been doing so since before this lens was designed, the point? This lens isn't going to be the rate-limiting factor in many photos, so unless you are going to blow a picture up to larger than your big screen TV and look at it from 6 away, chances are you'll be just fine.


It's true that the technology with their RF lenses is superior, it a byproduct of the physics (optics), but that comes at a price. Do I plan on purchasing the RF 15-35 2.8L IS USM? You betcha! Will I still have a use for the 17-40 4L USM, you betcha. Great glass is great glass!


This lens works on my DSLR's and really well on the EOS RP! It's well built like all the Canon L series lenses, great, albeit not weather-proof like some of the tanks in this series.


At it's current price, it is the cheapest L series lens available, cheaper than the 70-200 f/4 USM, which is another great, non-IS lens delivering great images. Even if you plan on making the transition to the mirrorless R line up, these lenses perform amazingly well, with an incredible IQ resulting in fast autofocus.