I have used the 17-40mm for years, primely for Real Estate. I learned how to get the best out of that Lens. Decided to go for the new lens since I was shooting a lot of exposers at F4 and thought stabilization would help What an understatement this new...

This was my first piece of L series glass, all I can say is WOW! Why did I wait so long to upgrade. I always thought I was doing pretty good with my kit lenses until I put this on the camera. Been shooting with this for a little over 2 months now and I...

canon l lens have mostly l lenses you cannot beat the outcome from these lenses

I bought this lens to use primarily for real estate. I rented a 16-35 F4.0 IS L, a 16-35 F2.8L, and a 14mm F2.8 prime. This new 16-35 4.0 is the winner hands down. Distortion is minimal and it's sharp edge to edge. I have noticed in some rare instances...

In order to reduce the weight and space in my backpack, I sold the EF-S 10-22mm f/3.5-4.5 for my T3i and bought this EF 16-35 f/4L just before my trip to Nepal and Bhutan so that I only needed to carry 1 lens and 1 body - 5DM3 (I normally have the 35mm...

Basing this review on 38 years as a commercial shooter. This lens is a great piece of glass. I'm finding it incredibly sharp corner to corner at any f-stop. I've used it for commercial jobs, and for fun out in nature and haven't been even the slightest...

Rented this lens for a long road trip and all I can say is WOW. And WOW again. In terms of image quality this lens would be better described as a "variable focal length Prime" rather than merely a "zoom". All the way to the corners it proved itself to...

The crown jewel of Canon L wide zooms. You will not find a sharper piece of glass edge to edge for wide angle landscape than this. In all candor what;s the real advantage of 2.8 vs 4 when it comes to critical landscape? Not a darn thing. If you are a...

I use this lens on my 6D with excellent results. Wide open at 16mm it is very sharp corner to corner and edge to edge. Excellent color and contrast with only very slight fringing under some conditions. Barely noticeable. Focus is quick and quiet. I...

Ive had ALL of Canons wide offerings in the last 25 years. 20-35mm 2.8L, 17-35mm 2.8L, 14mm 2.8L II, 16-35mm 2.8L, 17-40 4L, 16-35mm 2.8L II, and finally this 16-35mm f4L IS. The image quality alone is head and shoulders above the rest of the group....