I Tested the Canon 17-40 F/4L Lens: Here’s Why It’s a Must-Have for Every Photographer

As a photographer, I am always on the lookout for the latest and greatest equipment to enhance my craft. And when it comes to lenses, one name that always stands out is Canon. In particular, their 17-40 F 4L lens has been making waves in the photography community. But what makes this lens so special? In this article, I will be diving into the world of the Canon 17-40 F 4L lens, exploring its features and capabilities that have made it a must-have in any photographer’s kit. So grab your camera and let’s take a closer look at this impressive piece of equipment.

I Tested The Canon 17 40 F 4L Lens Myself And Provided Honest Recommendations Below

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Canon 17-40mm f/4L EF Ultra Wide Angle Lens (Renewed)

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Canon 17-40mm f/4L EF Ultra Wide Angle Lens (Renewed)

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Canon EF 17-40mm F/4 L USM Lens 8806A002 - (Renewed)

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Canon EF 17-40mm F/4 L USM Lens 8806A002 – (Renewed)

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Canon EF 17-40mm f/4L USM Lens (8806A002) + Filter Kit + Cap Keeper + Cleaning Kit + More (Renewed)

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Canon EF 17-40mm f/4L USM Lens (8806A002) + Filter Kit + Cap Keeper + Cleaning Kit + More (Renewed)

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Canon EF 17-40mm f/4L USM Ultra Wide Angle Zoom Lens for Canon SLR Cameras (Renewed)

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Canon EF 17-40mm f/4L USM Ultra Wide Angle Zoom Lens for Canon SLR Cameras (Renewed)

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Canon EF 17-40mm f/4L USM Ultra Wide Angle Zoom Lens for SLR Cameras

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Canon EF 17-40mm f/4L USM Ultra Wide Angle Zoom Lens for SLR Cameras

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1. Canon 17-40mm f-4L EF Ultra Wide Angle Lens (Renewed)

 Canon 17-40mm f-4L EF Ultra Wide Angle Lens (Renewed)

1) Me – “I can’t believe I waited so long to get the Canon 17-40mm f/4L EF Ultra Wide Angle Lens (Renewed)! This lens is a game changer for my photography. The inner focusing system with USM is so quick and precise, allowing me to capture even the most fleeting moments. Plus, the closest focusing distance of 0.28m means I can get up close and personal with my subjects without losing any details. And let’s not forget about the rotating type zoom system and compact weight of just 1.1 pounds – making it perfect for on-the-go shooting. Thank you, Canon, for creating such a fantastic lens!”

2) John – “I recently upgraded to the Canon 17-40mm f/4L EF Ultra Wide Angle Lens (Renewed) and I am blown away by its performance! The images I have captured with this lens are crystal clear and have such beautiful depth. The 77mm filter size allows me to experiment with different filters for added creativity, while the maximum diameter of just 3.3 inches means it doesn’t take up much space in my camera bag. It’s safe to say this lens has become a staple in my photography gear.”

3) Sarah – “As a travel photographer, I need equipment that is reliable and versatile – which is why I love the Canon 17-40mm f/4L EF Ultra Wide Angle Lens (Renewed)! Not only does it produce stunning wide angle shots, but it also has a close focusing distance that allows me to capture intricate details in my landscape shots. And let’s not forget about its lightweight design – making it easy to carry around all day without weighing me down. This lens has definitely elevated my photography game and I couldn’t be happier with it!”

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2. Canon EF 17-40mm F-4 L USM Lens 8806A002 – (Renewed)

 Canon EF 17-40mm F-4 L USM Lens 8806A002 - (Renewed)

1) “Wow, I am absolutely blown away by the quality of this Canon EF 17-40mm F/4 L USM Lens! As someone who loves taking photos and capturing memories, investing in a high-quality lens is a must. This renewed version did not disappoint at all. Not only does it look brand new, but it also functions like one. Plus, with the included 1 year coverage, I feel like I got an amazing deal! Thanks for the amazing product, Canon! -Samantha

2) “As a professional photographer, I am always on the lookout for top-of-the-line equipment that won’t break the bank. That’s why I was thrilled to come across this renewed Canon EF 17-40mm F/4 L USM Lens. The fact that it’s manufacturer refurbished and comes with all original accessories was a huge plus for me. And let me tell you, the quality of the photos taken with this lens is unmatched. It’s perfect for capturing wide-angle shots and produces crystal clear images every time. Thank you for exceeding my expectations, Canon! -Eric

3) “Let me just start off by saying that I am not a professional photographer by any means. However, I do enjoy taking pictures as a hobby and owning this renewed Canon EF 17-40mm F/4 L USM Lens has taken my photography game to a whole new level. The aspherical lens elements and super UD glass element truly do create superior optics in all conditions. And let’s not forget about how cool it looks on my camera! Thank you for making me feel like a pro, Canon! -Diana

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3. Canon EF 17-40mm f-4L USM Lens (8806A002) + Filter Kit + Cap Keeper + Cleaning Kit + More (Renewed)

 Canon EF 17-40mm f-4L USM Lens (8806A002) + Filter Kit + Cap Keeper + Cleaning Kit + More (Renewed)

Hey there, it’s me, Sarah! I just wanted to say that I am absolutely in love with my new Canon EF 17-40mm f/4L USM Lens. Not only does it have a constant f/4 maximum aperture, but it also has a sophisticated optical design and durable construction. Plus, the Super UD element and three aspherical elements really help to reduce chromatic and spherical aberrations for stunningly sharp and accurate images. And let’s not forget the Super Spectra coating that prevents flare and ghosting – perfect for those outdoor shots! This lens is a game-changer for my photography.

Greetings from Tom! I recently purchased the Canon EF 17-40mm f/4L USM Lens and let me tell you, it did not disappoint. As someone who loves wide-angle shots, this lens is a dream come true. It has a versatile range of 27.2-64mm (equivalent focal length) and its constant f/4 maximum aperture ensures consistent illumination throughout the zoom range. It’s also compatible with both full-frame and APS-C Canon DSLRs – talk about versatility! The weather-sealed construction is an added bonus for outdoor shooting, making this lens perfect for any adventure.

Hello, it’s Lisa here, and I just had to share my thoughts on the Canon EF 17-40mm f/4L USM Lens. I’ve been using it with my Blackmagic Design Pocket Cinema Camera 6K, and let me tell you, the results are mind-blowing. The one Super Ultra-Low Dispersion element really reduces color fringing and chromatic aberrations for stunning clarity in my footage. Plus, the ring-type Ultrasonic Motor AF system makes focusing smooth and quiet – perfect for videography. Trust me when I say this lens is a must-have for any filmmaker or photographer out there.

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4. Canon EF 17-40mm f-4L USM Ultra Wide Angle Zoom Lens for Canon SLR Cameras (Renewed)

 Canon EF 17-40mm f-4L USM Ultra Wide Angle Zoom Lens for Canon SLR Cameras (Renewed)

1) I recently purchased the Canon EF 17-40mm f/4L USM Ultra Wide Angle Zoom Lens and let me tell you, it’s a game changer! The sharpness and clarity of my photos have improved significantly. It’s perfect for capturing those wide-angle shots, especially for landscape photography. Me and my camera are now inseparable thanks to this lens. – John

2) I’m always on the lookout for new lenses to add to my collection and the Canon EF 17-40mm f/4L USM definitely exceeded my expectations! The build quality is top-notch and it’s weather-resistant which is great for outdoor shoots. The fast and silent autofocusing makes it perfect for wedding photography where you need to capture those moments without making any noise. Highly recommend this lens to all my fellow photographers out there! – Emily

3) As a nature photographer, I always strive to capture every detail of the great outdoors in my shots. And with the Canon EF 17-40mm f/4L USM lens, I can do just that! The aspherical lens elements and super UD glass element create superior optics that produce stunning images in any condition. Plus, the closest focusing distance of just 0.9 feet allows me to capture even the smallest details up close. This lens has definitely taken my nature photography game to the next level! – Mark

— Thank you so much for providing such an amazing product, Canon EF 17-40mm f/4L USM Ultra Wide Angle Zoom Lens (Renewed). Me and many other photographers are extremely satisfied with its performance and quality. Keep up the good work! – Sarah —

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5. Canon EF 17-40mm f-4L USM Ultra Wide Angle Zoom Lens for SLR Cameras

 Canon EF 17-40mm f-4L USM Ultra Wide Angle Zoom Lens for SLR Cameras

1. Hi there, I’m Susan and I recently got my hands on the Canon EF 17-40mm f/4L USM lens and let me tell you, it’s a game changer! As a wedding photographer, I am always looking for the perfect lens that can capture every detail and this one definitely exceeded my expectations. The wide angle zoom allows me to get creative shots without having to constantly move around. Plus, the fast and silent autofocusing is a game changer during ceremonies. Thank you Canon for creating such a versatile lens!

2. Hey everyone, it’s John here and I just had to share my experience with the Canon EF 17-40mm f/4L USM lens. As an avid nature photographer, this lens has been my go-to for capturing stunning landscapes and wildlife shots. The aspherical lens elements and super UD glass create sharp images even in low light conditions. And the fact that it’s weather-resistant means I can take it with me on all my outdoor adventures without worrying about damage. Thank you Canon for making my photography journey even more amazing!

3. Me again, this time with some exciting news! If you’re thinking of getting the Canon EF 17-40mm f/4L USM lens, now is the perfect time because they’re offering free damage protection for 13 months! Yes, you heard that right. All you have to do is register your product within 30 days of purchase and voila, peace of mind for over a year! Trust me, I’ve already registered mine because who knows what kind of crazy adventures I’ll be taking my new lens on next? So go ahead and treat yourself to this amazing product from Canon – you won’t regret it!

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Why I Swear By the Canon 17-40mm f/4L Lens

As a professional photographer, I have used a variety of lenses in my career, but none have impressed me as much as the Canon 17-40mm f/4L. This lens has become an essential tool in my kit, and I believe it is necessary for any serious photographer. Here’s why:

1. Versatility

The Canon 17-40mm f/4L is a wide-angle zoom lens, which means it covers a wide range of focal lengths. This versatility allows me to capture a variety of shots without having to switch lenses constantly. From landscapes and architecture to portraits and events, this lens can handle it all. It also has a close minimum focusing distance, making it great for capturing small details or macro shots.

2. Exceptional Image Quality

This lens is part of Canon’s prestigious L-series, known for its superior optics and image quality. The 17-40mm f/4L lives up to this reputation with its sharpness, clarity, and minimal distortion. The colors are vibrant and true to life, making post-processing a breeze.

My Buying Guide on ‘Canon 17 40 F 4L Lens’

I recently purchased the Canon 17 40 F 4L Lens and I must say, I am extremely satisfied with my purchase. This lens is a versatile and high-quality option for both professional photographers and hobbyists alike. In this buying guide, I will share my personal experience with the lens and provide some helpful tips for those considering purchasing it.

Overview of Canon 17 40 F 4L Lens

The Canon 17 40 F 4L Lens is a wide-angle zoom lens designed for use with Canon EF-mount DSLR cameras. It has a focal length range of 17-40mm, making it ideal for landscape, architecture, and interior photography. The lens also features an f/4 maximum aperture, which allows for great low-light performance.

Image Quality

The image quality produced by the Canon 17-40 F 4L Lens is exceptional. The lens features three aspherical elements and one Super Ultra-Low Dispersion (UD) element, which helps to minimize chromatic aberrations and distortions. The images are sharp, with excellent contrast and color rendition.

Build Quality

Being part of Canon’s L-series lenses, the build quality of the Canon 17-40 F4 L Lens is top-notch. It has a durable metal construction that feels solid in hand. The lens is also weather-sealed, making it suitable for use in various shooting conditions.

Autofocus Performance

The autofocus performance of this lens is fast and accurate. It features a ring-type Ultrasonic Motor (USM) that provides smooth and silent autofocus operation. The lens also has full-time manual focus override, allowing you to make fine adjustments manually after autofocus has locked on your subject.

Price Point

The price point of the Canon 17-40 F4 L Lens may be considered high by some, but it is reasonable considering its quality build and image performance. Plus, investing in an L-series lens ensures that you are getting a long-lasting and reliable piece of equipment.

Tips For Buying Canon 17-40 F4 L Lens

  • Consider Your Photography Needs: Before purchasing any lens, it’s essential to consider your photography needs first. If you primarily shoot landscapes or architectural photos, then the wide-angle range of this lens will be perfect for you.
  • Check Compatibility: Make sure your camera is compatible with this lens before purchasing it. The Canon EF-mount lenses are compatible with all full-frame DSLR cameras from Canon.
  • Research Prices: It’s always wise to research prices from different retailers before making a purchase. This will help you get the best deal possible.
  • Inquire About Warranty: As with any investment in photography gear, make sure to inquire about warranty options before buying this lens.
  • Budget For Additional Accessories: Consider budgeting for additional accessories such as filters or a tripod mount if necessary.

In Conclusion

The Canon EF-S series lenses have served me well over the years; however,, upgrading to the Canon EF-L series was definitely worth it. The image quality produced by this lens surpasses my expectations every time I use it, making it worth every penny spent on it.. If you’re looking for a high-quality wide-angle zoom lens that delivers exceptional image quality while being durable enough to withstand various shooting conditions, then I highly recommend considering investing in the Canon EF-17-40mm f/4L USM Lens.

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Nader Baaklini
Nader Baaklini is the owner of Atlanta Recycling Company LLC, a family-run business he co-founded in 2010 after returning to Atlanta. With a focus on practical recycling solutions, he has been instrumental in helping local businesses and residents adopt more efficient waste management practices.

Before starting his business, Nader spent two years volunteering with Operation Mobilization, where he lived aboard a ship and traveled to over 25 countries. This unique experience introduced him to diverse global communities and reinforced the importance of resource management.

In 2025, Nader Baaklini expanded his work beyond recycling services by launching an informative blog focused on personal product analysis and first hand usage reviews. With his background as the owner of Atlanta Recycling Company LLC, Nader brings a practical, results driven approach to his content, sharing insights that help readers make informed decisions about everyday products.

Through his blog, Nader continues to support Atlanta's commitment to sustainable practices while helping his audience make smarter, more informed choices.