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Canon EF 100-400mm f/4.5-5.6L IS USM Telephoto Zoom Lens

Curated from 107 real Reddit conversations

Refreshed on: February 6, 2025

Canon EF 100-400mm f/4.5-5.6L IS USM Telephoto Zoom Lens

Brand: Canon

Price: $1149

Snoop Score:

8.2

Sentiment

8.4

Popularity

8.7

Technical

7.8

Buy on Amazon for $1149 See All SLR Camera Lenses Reviews

As an Amazon Associate, I earn from qualifying purchases.

Snoop's Take

The Canon EF 100-400mm f/4.5-5.6L IS USM Telephoto Zoom Lens is designed for Canon SLR cameras, offering exceptional versatility for capturing distant subjects and detailed close-ups. Users rave about its compatibility with various Canon cameras, including older models, highlighting that "any Canon M mirrorless camera will work with the Canon EF->M adapter," showcasing its adaptability across different formats. Given the overwhelmingly positive feedback regarding its sharpness, contrast, and overall value, this lens is highly recommended for photographers looking for quality in the telephoto zoom category.

Not for you? Check out our other rated SLR Camera Lenses

The shutter sound is making me fly high 🥳🥳🥳🥳🥳🥳.
Positive Feedback

All **Canon made** EF lenses will work.
Negative Feedback

8.2

Canon EF 100-400mm f/4.5-5.6L IS USM Telephoto Zoom Lens

Buy on Amazon for $1149

Portrait Photography

7 / 10

Action & Sports

9 / 10

Landscape & Travel

8 / 10

Low-Light & Night Photography

8 / 10

See how this compares to all SLR Camera Lenses

What it does well!

Key strengths users can’t stop talking about.

Excitement about capturing images

“The shutter sound is making me fly high 🥳🥳🥳🥳🥳🥳.”➕

Versatile lens for photography

“I’ve found it extremely versatile. A good lens will take you further than a new body.”➕

Compatibility with various Canon cameras

“SLR lens compatibility with DSLR Recently got an oldish canon SLR (EOS rebel S) with the ultrasonic ”➕

“any DSLR that ends in “D” (e.g. 7D, 90D, 600D) will work with that lens.”➕

“any Canon M mirrorless camera will work with the Canon (or 3rd party) EF->M adapter.”➕

“Yeah, that's an EF mount lens, so it will go on any EF mount camera.”➕

EF lenses are compatible with all EOS cameras

“Is this compatible with EOS Film cameras of 90s / 00s?”➕

“Yes, EF lenses work on any EOS camera (just need adapters if it’s an EOS R or EOS M camera).”➕

“The short answer is yes. Any, and all EF mount lenses will fit on these EF mount bodies.”➕

“Yes, the nice thing about the EF EOS line is that the EF mount lenses are compatible throughout the film and digital camera eras.”➕

Canon lenses from different eras work seamlessly

“works like charm. Can recommend”➕

“Yes it is.”➕

Full compatibility of Canon EF lenses on EOS film bodies

“My advice: stick to Canon lenses.”➕

“If you want guaranteed compatibility then go Canon.”➕

Sharpness and contrast improvements with modern EF lenses

“You get a level of sharpness and contrast that was a bit more difficult to get in those days.”➕

Affordable price for a lens

“Pros and cons of the Canon EF 50mm F/1.8 I've been wanting to get into night photography for a while”➕

“In my opinion any con is outweighed by that.”➕

“Buy a used one in Excellent condition from mpb for $60.”➕

“There is nothing better in that price range or even double or triple that.”➕

Where it needs some work!

Areas to watch—feedback on possible improvements.

Compatibility issues with older EOS cameras

“All **Canon made** EF lenses will work.”➕

“the EOS 650, it's auto focus system is as basic as it gets.”➕

“the EOS 650 along with all EOS cameras have no mechanical focus connection between the body and the lens.”➕

Softer image quality from older third-party lenses

“Older Sigma/Tamron lenses tend to be softer than the Canon counterparts, but tend to be a lot cheaper.”➕

EF-S lenses are not compatible with older EOS bodies

“Original Canon EF-S lenses don't even fit mechanically to old bodies (EF).”➕

“But guys this is EF not EF-S.”➕

Build quality feels plasticky

“it is very very cheep in terms of build quality.”➕

Not very sharp at low apertures

“Its a great lens at its price. Theres not really any going wrong with this lens.”➕

Compare On All Talked About Dimensions

Product Name	Price	Score	See Details	Buy Now
Canon EF 24-70mm f/2.8L USM Standard Zoom Lens	$928	9.2	Details	Buy
Canon EF 70-200mm f/2.8L IS III USM Lens	$2099	8.9	Details	Buy
Canon EF 50mm f/1.8 STM Lens	$125	8.5	Details	Buy
Canon EF 100-400mm f/4.5-5.6L IS USM Telephoto Zoom Lens	$1149	8.2	Details	Buy
Nikon AF-S DX NIKKOR 18-140mm Zoom Lens	$231	7.7	Details	Buy
Nikon AF-S DX NIKKOR 55-300mm Zoom Lens	$268	7.6	Details	Buy
Nikon 55-200mm f/4-5.6G ED-IF AF-S DX VR Lens	$108	7.2	Details	Buy
Nikon 35mm f/1.8G AF-S DX Lens	$155	6.9	Details	Buy
Sony SEL85F18 85mm F/1.8 Prime Camera Lens	$598	6.2	Details	Buy
MEKE 85mm F1.8 Auto Focus Lens for Nikon Cameras	$189	6.1	Details	Buy
Nikon 70-300mm f/4.5-5.6G ED IF AF-S VR Nikkor Lens	$479	5.6	Details	Buy
Canon EF 75-300mm f/4-5.6 III Telephoto Zoom Lens	$131	4.4	Details	Buy
LAOWA 100mm f/2.8 2X Ultra Macro APO Lens	$499	4.0	Details	Buy
Tamron Auto Focus 18-200mm Zoom Lens for Canon	$249	3.5	Details	Buy
Lightdow EF 420-800mm F8.3 Telephoto Zoom Lens	$67	3.0	Details	Buy
Canon EF-S 18-55mm f/3.5-5.6 is II Lens	$129	2.2	Details	Buy

Core Power Plays

The specs and strengths that make it shine.

Crop sensors may enhance image quality by cropping out edges.

“the crop sensor crops out the edges of the frame that the vintage lens projects, thereby leaving the best, sharpest part of the frame, with fewest distortions and fringing.”➕

All Canon EF lenses fit all EOS EF cameras

“FWIW, right now I’m shooting with a Canon EF 28-135mm f/3.5-5.6 IS USM on the 650, and it works great.”➕

“Would be easier to set a column for lens mount then try to use FF VS APS-C notation.”➕

Older SLR lenses can work on current DSLRs.

“SLR lenses from that era are still plentiful, and work on many current DSLRs.”➕

Interchangeability of lenses within the same mount system

“Throw on a 50 1.2 and it’s so much fun.”➕

Hidden Hero Hacks

Unexpected tricks and side‑door uses you’ll love.

Discussion on DIY lens projects for cameras.

“Hoping to find some answers before I waste a lens cap and an afternoon :)”➕

“The industry REALLY should have come up with a less clunky term than 'interchangeable lens camera'.”➕

“it's a lot more feasible.”➕

Interest in recreating vintage photographic effects.

“More like they are going the way of the vinyl record. It isn't mainstream anymore, but it will never die.”➕

Transition from digital to analogue photography using Canon EOS bodies

“Absolutely the way! I think there are a few of us on this sub that have moved into analogue from Canon digital as the EOS bodies are so cheap and we've already invested in the lens system.”➕

Buyer’s Cheat Sheet

What to check before you click ‘Add to Cart.’

Confusion exists regarding the compatibility and performance of vintage lenses on crop sensors.

“It can be confusing, to me anyway. I think people, myself included, can get wrapped up in the wrong aspects of photography.”➕

Not all vintage lenses perform equally on different sensor sizes.

“crop sensors can make some lenses perform better than they could have ever on full frame.”➕

Encouragement to learn photography basics

“Thats a good set of lenses to get started with. Enjoy the journey.”➕

Canon lenses can be found at discounted prices

“Get this one. It’s currently on an incredible sale from canon for $450.”➕

Older lens designs can be cost-effective

“the used market is a great place to begin with. Even on something as demanding as the R7, I was able to get decent results when I upgraded from the original 7D.”➕

Disposable camera lenses are not compatible with DSLR bodies.

“The lenses require being placed too close to the sensor to work on a DSLR body which is why it's only done on mirrorless cameras.”➕

“That location is too close to the sensor for them to be used on DSLR cameras because the mirror is in the way.”➕

Discussion about lens compatibility and coverage

“here's a complete list of all Canon EF, New FD, FD, and FL lenses for your enjoyment and reference.”➕

“Canon also has a very nicely presented site includes all of this information along with images of each.”➕

Compatibility issues with modern lenses on older film cameras

“can you use a modern lens on an older film camera? What about cross-brand?”➕

“yes you can use modern lenses on film bodies, but there are some limitations such as potential for loss of focal distance as well as auto-focus.”➕

“Same mount system? Yes, with some ifs,buts and maybes.”➕

Discussion on lens compatibility across different camera generations

“Only Canon lenses use EF-S mount.”➕

Discussion about varying prices and availability

“Spend more time doing photography, and less time worrying about how sharp your lens is.”➕

“My point was they are cheep.”➕

Cautionary Callouts

Know the pitfalls before they catch you off guard.

Vintage lenses can produce unique character in images.

“They are beautiful and help me produce images with lots of character.”➕

Discussion on the balance of large, fast lenses

“it's interesting how well balanced these large, fast lenses are.”➕

“And yeah - they balance quite well.”➕

Praise for the speed and rendering of older lenses

“For a particularly sexy camera + lens combo put this on Canon P. You will not be dissapoint.”➕