Customer Ratings & Reviews

I purchased this lens to replace my first edition Canon 100-400. After years of heavy use the barrel seized and I could not extend or retract it. Being on vacation at the time, we hopped over to Best Buy and purchased the mark II so I could continue photographing our vacation excursions uninterrupted. The first edition was a fantastic piece of glass but the new one is even better. I like the twist barrel much better than the original "pump" and the minimum focus distance is closer. Pairing it with my 1.4 III extender it gives me plenty of reach on my Canon 7D II.

I don't usually do reviews but I love this lens. I have captured pictures I wouldn't have before. It has made me excited to take pictures again. Like anything new it took me a little bit for get used to, now I don't want to put it down. It is a little heavy but I have gotten used to it. I would recommend this lens.

You won’t be disappointed!!! I liked my 24-70 but after experiencing the reach and sharp action photos with this lens, I’m in LOVE!

This lens is everything and more than I anticipated. It performs as advertised. The shots are easy to capture and satisfying. Great for beginning shooters or experienced. You don't want to use this without a tripod for very long as it does weigh more than your lesser lenses. Caution: Never hold this connection by the camera body. The weight will break your connection to the body in time.

I take wildlife photos and wanted a lens that had good glass and had a decent reach. This lens fit the bill and will be adding an extension to it soon.

Coupled with the 7D Mark II this lens is fantastic for birding. It was a little soft at the ends out of the box but nothing a little MFA couldn't take care of. Once I did that it performs like a champ.

This is by far one of the best lenses that I've ever used. I currently have a Canon 24-70L 2.8 and the 70- 200L 2.8. At this point, I am going to sell my 70–200 because this new lens is far superior to that. Even though it's a 4.0–5.6, it focuses very fast, the picture quality is fantastic and the reach is clean and beautiful up to 400 mm

After doing much research, I finally decided to upgrade from my Canon EF 70-300 4-5.6 IS USM lens. I primarily shoot wildlife and enjoy going to airshows and was looking for a little extra reach. I took this lens out for a test spin at my local animal sanctuary and I was not disappointed! A few impressions -- First, this lens is HEAVY - much heavier than my 70-300, but not heavy enough to make a tripod necessary. Secondly, this lens is crisp. I took some of my cleanest, sharpest photos ever with this lens after my first day out with it. Though, I will say that it also produced a higher percent of soft images, that I would, at this point, attribute to user error. I also noticed a considerable gain in reach from going from 300 to 400mm. I was also impressed with the level of bokeh achieved at 400mm and 5.6. Overall, I couldn't be happier with my purchase. I feel like I have entered a new level of my amateur photography, and I am looking forward to learning more and growing with this lens for years to come.

I wish i had bought this lens a long time ago.My pictures are very clear.

While the 4.5 - 5.6 is by no means the fastest, under decent lighting, this lens focuses fast, is light enough for hand-held shots zoomed to 400, and has now become my most used, all-around lens. While a faster f/stop would certainly be nicer, I do not have the $11,000 to buy one. This lens is probably the best lens that Canon puts out for general birding photography. The clarity of the lens is astounding, allowing for significant cropping without compromising the crispness if the image.

This is a typical L quality lens. I never owned the original 100-400 with the push/pull zoom, but have been interested in this focal range for a while. While not cheap and not lightweight, the lens is well constructed and weather sealed. The Image Stabilization is super nice with 3 modes. I have been able to hand hold this lens at ridiculously low shutter speeds. The quality of the glass is exceptional, rendering very sharp images throughout the range. On my 7D2 body this gives the effective range of 160-640 at a very useable 4.5-5.6 aperture range.

Received a 10% off coupon plus it was on sale!! Unbeatable deal and absolutely LOVE this lens with my 80D. I originally rented a sigma 150 - 600 and that lens was terrible! This L is tack sharp and focuses extremely quick! Example pic from the recent air show in Tucson AZ.

I have the 70-300L and needed more reach, this lens is great! I looked at the previous 100-400L, the Tamron 150-600 and then tried this out, it focuses way faster than the old one and is lighter and handled better than the Tamron and is built better. the close up capability of this over the others is way better too. I knew as soon as I picked it up and started shooting it was a fine lens. A little pricier than the others but if you can swing it just go for it, no buyers remorse wondering if I made the right choice here. I went for 18 month no interest on my Best Buy card to soften the blow a little. :-)

This Lens is a game changer for Wildlife photography and its a must have in my opinion. Takes fantastic shots and its sturdy and durable.

awesome lens heavy but sharp and fast. perfect for every situation.

Bought this for a wildlife safari in Tanzania and it worked great. Spent most of the trip on a 7D mkII with a 1.4 teleconvertor and captured great images. Much better than the mkI version and easier to handle than my 500 f4.

Absolutely awesome lens in all categories. From nature, wildlife to general photography, all around awesome lens.

I'm a professional photographer, and this lens is the choice of sports shooters. Super sharp and fast focusing, it gives you a 400mm 5.6, and if you use a crop (1.6) camera, over a 600mm zoomed out. An important, well built and indispensable lens!

Fast focus. Excellent clarity. Produces amazing images. Paired it with a canon80d.

Flexible and capable walk around lens with the focal length and focus speed to catch wildlife on the move.