Canon Zoom Telephoto EF 100-400mm f/4.5-5.6L IS (Image Stabilizer) USM Autofocus Lens USA

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The first EF lens with a zoom range from 100mm to 400mm, the EF 100-400mm f/4.5- 5.6L IS USM lens offers high resolution, superb contrast, neutral color balance, and Canon's original built-in Image Stabilizer function. High zoom magnification is achieved by means of a 6-group configuration with 5 movable groups. Fluorite and Super UD glass completely eliminate secondary spectrum for superb color rendition. Autofocusing is fast and silent with Canon's ring USM, and AF speed is further enhanced through an advanced, lightweight rear focusing design that incorporates a floating element for consistent image quality at all focusing distances from 5.9' to infinity. This lens is also equipped with a dual-mode Image Stabilizer suitable for panning as well as stationary subjects. With full-time manual focus, one-touch zooming with a wide grip, and a special ring that permits adjustment of zooming friction, this is a lens that's extremely easy to use, and ideal for a wide variety of applications including nature, wildlife, sports, and documentary photography.

Floating internal lens element & rear-group focusing
Fluorite & ultra-low dispersion lens elements
Tripod collar
Performance
Focal Length 100 - 400 mm
Aperture Maximum: f/4.5 - 5.6
Minimum: f/32 - 40
Camera Mount Type Canon EF
Format Compatibility 35mm Film / Full-Frame Digital Sensor
Canon (APS-C)
Angle of View 24° - 6°
Minimum Focus Distance 5.9' (1.80 m)
Magnification 0.2x
Maximum Reproduction Ratio 1:5
Groups/Elements 14/17
Diaphragm Blades 5
Features
Image Stabilization Yes
Autofocus Yes
Tripod Collar Yes
Physical
Filter Thread 77 mm
Dimensions (DxL) Approx. 3.6 x 7.4" (9.14 x 18.80 cm)
Weight 3.04 lb (1.38 kg)

REVIEW SNAPSHOT®

by PowerReviews
Canon Zoom Telephoto EF 100-400mm f/4.5-5.6L IS (Image Stabilizer) USM Autofocus Lens
 
4.7

(based on 768 reviews)

Ratings Distribution

  • 5 Stars

     

    (579)

  • 4 Stars

     

    (169)

  • 3 Stars

     

    (16)

  • 2 Stars

     

    (3)

  • 1 Stars

     

    (1)

98%

of respondents would recommend this to a friend.

Pros

  • Fast / accurate auto-focus (671)
  • Strong construction (557)
  • Durable (430)
  • Consistent output (419)
  • Rugged (351)

Cons

  • Heavy (410)
  • Poor in low light (67)
  • Lens creep (51)
  • Slow focus (29)
  • Blurry focus (7)

Best Uses

  • Sports/action (467)
  • Wildlife photos (399)
  • Wildlife (240)
  • Landscape/scenery (207)
  • General purpose (78)
    • Reviewer Profile:
    • Photo enthusiast (262), Enthusiast (160), Semi-pro photographer (116), Semi-professional (74), Casual photographer (38)
    • Was this a gift?:
    • No (287), Yes (24)

Most Liked Positive Review

 

Really Great Lens for Wildlife

This remarkable Canon lens has been around for more than ten years but it has by no means been superceded by newer models in many respects.

A few claim the autofocus is n...Read complete review

This remarkable Canon lens has been around for more than ten years but it has by no means been superceded by newer models in many respects.

A few claim the autofocus is not always accurate or the maximum aperture is "only" f/5.6, or the "pump action" zoom is outmoded, but I would point out the following;

The autofocus is fine although it is worth remembering that at the closest focus distance (less than 2 metres) with the lens at 400mm, the depth of field at f/5.6 is barely one centimetre. That is true for any similar lens - if there was one. If in the fraction of a second after focusing one rocks forwards or backwards even a tiny amount then it will need refocusing –not a fault of the lens, it just needs practice.
Even at f/16 the depth of field is only about 3cms so for close wildlife pictures (birds etc) there seems little point in having a lens faster than f/5.6. Claims that small apertures require undesirably slow shutter speeds do not apply once one realises how fast the ISO rating can be raised and still get very good pictures. (On a full frame camera ISO6400 is still excellent). Additionally the IS will allow quite slow speeds anyway if the creature is more or less stationary.

For hand held shots (using IS) this pump action zoom turns out to be ideal as the majority of the not inconsiderable lens weight is supported by the left hand which does not want to have to keep letting go and regripping to operate a more conventional twist zoom. So often when on the move with wildlife there is not time to set up a tripod, even if you have brought one, where a twist zoom might be considered more conventional.

Additionally the closest focus distance even at 400mm is just under 2 metres. Most fixed focus lenses of 400mm or even 300mm have longer closest focus distances, some much longer and many much more expensive.

I find that the lens produces very high definition pictures. Maybe with a wheelbarrow load of very expensive long prime lens one might achieve very slight improvement at full aperture but as I have said this is of little use in most wildlife pictures where a bit more depth of field is needed.

These things all help to make this 100-400mm zoom lens highly desirable.

VS

Most Liked Negative Review

 

Disappointed For the Price

As a professional, I usually shoot landscapes but I have recently started to get more into wildlife. After much research, I pulled the trigger and bought this.

Right out of t...Read complete review

As a professional, I usually shoot landscapes but I have recently started to get more into wildlife. After much research, I pulled the trigger and bought this.

Right out of the box the lens feels well built and heavy. I was surprised at the size of the lens. It is smaller then the 70-200mm f/2.8 when zoomed out and only looks truely impressive in size with the lens cap on. It it not weathered sealed so using it in damp or dusty environments is out (which was not a problem for me).

The f/5.6 at the 400 end is not fast but is not overly slow either. A monopod or tripod is required to get shots in shadow or overcast situations. Unless using a flash, even wide open with IS on, don't think about using this indoors. Images looked sharp at 25% but at 100% lens blur could be seen even with IS on. Pixel peepers will be even more disappointed - but again this is not an indoor lens at f/4-f/5.6. If you do use this indoors without a flash, you will need a tripod and a stationary subject.

Overall the optical quality was not impressive. My copy didn't suffer from bad chromatic aberration or purple fringing but there was some vignetting zoomed in. Since it is a telephoto, I didn't see any barrel distortion.

The resolution and sharpness, however, left much to be desired. While shooting in bright noon sunlight photos taken at all focal lengths were not tack sharp. (I realize that every person has their own perspective of what tack sharp is and some will say what I call soft to be tack sharp. So let me help: I define tack sharp as the ability to see the black parts of a dragon fly's wings or individual pieces (quills) of a bird's feathers with little to no blur on them - this lens certainty does not produce sharpness to that level especially at 400mm)

It seemed that 200mm was the sharpest falling off slightly to 300mm. At 300mm or more the lens got softer and was softest at 400mm. The softness of the lens was the biggest disappointment. It was much softer then my cheaper 300mm non-canon non-IS lens. Even stopped down to f/8 (which seemed to be the sweet spot for my copy) the images were still much too blurry for professional printing or sale.

While shooting some sharpness tests to determine the quality of my copy, I noticed that even when setup under bright light on a tripod and using the same settings, the lens seemed to have an 80% fail rate for usable sharp images. Only two out of ten images I shot were acceptably sharp and all the others suffered from softness - often badly. This was an unacceptable failure rate for me.

The IS is noisy and jittery which is to be expected since this lens uses Canon's first generation Image Stabilization system developed back in the 1980's. I found that on my copy I was only able to get mildly acceptable results at one f-stop lower... not the 2 or 3 they advertise. I found the IS function useless unless I was to hand hold the lens at 100mm in bright noon nunlight. Besides no one should be handholding a 400mm lens if they want sharp images anyway.

The lens performed much better with IS off and on a monopod thus I found the IS function to be a waste and not worth the extra money for the feature.

On positive notes the focus was fast and the lens was comfortable on a monopod. Tracking BIF (birds in flight) was easy and I did get some amazing shots (although they were still too soft for the price of the lens). The lens hood was nice as well but it would have looked better white.

I did notice that like all white L glass, there is an issue with scaring wildlife and I did on several occasion, not being able to get as close as I could with my black lenses. (They do sell lens covers for this but they still will not hide 60% of the white parts when zoomed in since this is a push / pull design.)

All in all I found the build quality to be good but the optical resolution (sharpness) to be much to soft for my needs. I also didn't need the 100-200 range and didn't find the Image Stabilization to be useful since a tripod or monopod will result in sharper, more professional images. I ended up returning this lens based on the softness issues.

I have decided to either go for the 400mm f/5.6L prime or save up for the 500mm prime. The 400mm is actually cheaper then this lens by a couple hundred bucks and it is the same wide open aperture. The 400mm prime does not have IS but again I didn't find it helpful. Additionally as a prime, the 400 should be sharper then the 100-400 and research I have done on the lens suggest that it in fact is.

I would have kept this lens if it had been $500 less but this lens had too many negatives to justify the price.

I am checking that "I am not recommending this to a friend" but here is a side not to that:

If you are just using this lens for a hobby and will not be selling your photos and need the extra 100-200mm range then this lens might make sense to you. But if you are a professional looking to get extra reach and also demand sharpness, save up and go with the 500mm or 400mm f/2.8 or save some money and get the 400mm f/5.6 prime.

Reviewed by 768 customers

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(2 of 2 customers found this review helpful)

 
5.0

Amazing lens

By Litespeed

from San Diego, CA

About Me Photo Enthusiast

Verified Buyer

Pros

  • Fast / accurate auto-focus
  • Nice Bokeh
  • Strong Construction

Cons

  • Heavy
  • Poor in Low Light

Best Uses

  • Landscape/Scenery
  • Sports/Action
  • Wildlife Photos

Comments about Canon Zoom Telephoto EF 100-400mm f/4.5-5.6L IS (Image Stabilizer) USM Autofocus Lens:

I use this lens for wildlife of all kinds. Mainly I go to the zoo or Safari Park or a local lake known for it's birds.

At first I thought I would be disappointed that it wouldn't give me enough zoom that I wanted. After trying it out on a nice sunny day, I was blown away. Photo's are clear and sharp. Easy to use with the push pull method and the auto focus works great.

About the only not so great thing is the weight. I have found if I carry the camera in an arm sling it takes all the weight off my hands and arms so I don't have to support it as much. Makes taking it along on long walks much easier.

  • Was this a gift?:
  • No

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(1 of 1 customers found this review helpful)

 
5.0

Very nice lens - just what I needed

By Ron

from Petaluma, CA

About Me Semi-pro Photographer

Verified Buyer

Pros

  • Easily Interchangeable
  • Fast / accurate auto-focus
  • No tripod needed
  • Strong Construction

Cons

    Best Uses

    • Sports/Action
    • Wildlife Photos

    Comments about Canon Zoom Telephoto EF 100-400mm f/4.5-5.6L IS (Image Stabilizer) USM Autofocus Lens:

    I mainly do wildlife photography, focusing on birds, and this lens is great for photographing birds. It is light enough that I do not need to carry a tripod, which affords me the opportunity to move quick and captor my subject while in flight. The focus is reasonably quick and I find no problems with tracking a moving object. The only thing that I would improve would be to make the lens hood out of metal instead of plastic.

    • Was this a gift?:
    • No

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    (1 of 1 customers found this review helpful)

     
    5.0

    Awesome Lens

    By JF

    from East TN

    About Me Photo Enthusiast

    Verified Buyer

    Pros

    • Consistent Output
    • Durable
    • Easily Interchangeable
    • Fast / accurate auto-focus
    • Strong Construction

    Cons

    • Heavy

    Best Uses

    • Landscape/Scenery
    • Sports/Action
    • Wildlife Photos

    Comments about Canon Zoom Telephoto EF 100-400mm f/4.5-5.6L IS (Image Stabilizer) USM Autofocus Lens:

    Use for Wildlife and Landscape Photography.
    Tripod is a must.
    Awesome detail.
    It does have a little weight problem.

    • Was this a gift?:
    • No

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    (1 of 1 customers found this review helpful)

     
    5.0

    Love this lens

    By Steve I

    from St. Louis, MO

    About Me Pro Photographer

    Verified Buyer

    Pros

    • Durable
    • Fast / accurate auto-focus
    • Strong Construction

    Cons

    • Heavy

    Best Uses

    • Landscape/Scenery
    • Wildlife Photos

    Comments about Canon Zoom Telephoto EF 100-400mm f/4.5-5.6L IS (Image Stabilizer) USM Autofocus Lens:

    After seeing how sharp this lens really was when I tested a friends, I knew I would own one. Know that I have my own, I have not been disappointed.

    It's no secret that the lens is heavy but you quickly get used to it.

    The lens is well made and I really like the ability to keep the lens from zooming when hanging from a strap with the resistance adjustment.

    Very satisfied so far.

    • Was this a gift?:
    • No

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    (1 of 1 customers found this review helpful)

     
    5.0

    Terrific lens for birding...

    By Randy

    from Miramar, Fl.

    About Me Photo Enthusiast

    Verified Buyer

    Pros

    • Rugged
    • Strong Construction

    Cons

    • Heavy

    Best Uses

    • Wildlife Photos

    Comments about Canon Zoom Telephoto EF 100-400mm f/4.5-5.6L IS (Image Stabilizer) USM Autofocus Lens:

    I purchased this lens to shoot birds and other wildlife here in South Florida. This lens won't dissapoint. It's heavy but not too heavy for most people. I've heard the push pull zoom is difficult for some but I find it very easy to adjust to. It does take "some" practict to get somewhat proficient at using.

    • Was this a gift?:
    • No

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    (1 of 1 customers found this review helpful)

     
    5.0

    This lens is awesome!

    By Crow Watcher

    from Binghamton, NY

    About Me Photo Enthusiast

    Verified Buyer

    Pros

    • Easily Interchangeable
    • Fast / accurate auto-focus
    • Lightweight
    • Rugged

    Cons

      Best Uses

      • Wildlife Photos

      Comments about Canon Zoom Telephoto EF 100-400mm f/4.5-5.6L IS (Image Stabilizer) USM Autofocus Lens:

      It is just light enough that I can lug it around on my camera and hand hold...though it benefits from a mono or tripod. If the pictures are not clear and sharp, it is my fault. I use it several days per week to document our studies of American crows in the wild. Its magnification is great enough that if I cannot get a band combination fast enough, I take a picture and identify the bird on the camera.
      It has an excellent case also that makes it safe to take anywhere.

      • Was this a gift?:
      • No

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      5.0

      Love this lens!

      By Patti

      from Stephenville, TX

      About Me Photography Student

      Verified Buyer

      Pros

      • Durable
      • Strong Construction

      Cons

        Best Uses

        • Landscape/Scenery
        • Wildlife Photos

        Comments about Canon Zoom Telephoto EF 100-400mm f/4.5-5.6L IS (Image Stabilizer) USM Autofocus Lens:

        I had been looking at this lens for a while. Thanks to B&H and their pricing, I went ahead and ordered it. It arrived when promised. I am glad I went ahead and spent the extra money on the Canon versus a Tamron. I think the IS and AF functions are worth it.

        • Was this a gift?:
        • No

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        4.0

        Canon 100-400 L

        By CWJ

        from New York/Los Angeles

        About Me Pro Photographer

        Verified Buyer

        Pros

        • Consistent Output
        • Durable
        • Easily Interchangeable
        • Fast / accurate auto-focus
        • Lightweight
        • Rugged

        Cons

        • Poor in Low Light

        Best Uses

        • No other way to get shot

        Comments about Canon Zoom Telephoto EF 100-400mm f/4.5-5.6L IS (Image Stabilizer) USM Autofocus Lens:

        I use this lens when I need to be nimble and cannot carry a 300 or 400mm f 2.8. When stopped down to the middle stops it performs very well. Impressive enough that I now own one. The IS is excellent and tracks very well with Auto Focus.

        The pit-falls of the lens are the reasons to use the previously mentioned primes. If you can use a prime by all means use one, but if you are shooting in bright sun, trampling though swamps or just need to be minimalist, this lens is a very nice tool.

        • Was this a gift?:
        • No

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        4.0

        One of the Best Tiger Photography Lens

        By Jungle Rhythms - Nirmalya

        from Tiger Reserves of India

        About Me Semi-pro Photographer

        Verified Reviewer

        Pros

        • Durable
        • Easily Interchangeable

        Cons

        • Heavy

        Best Uses

        • Wildlife Photos

        Comments about Canon Zoom Telephoto EF 100-400mm f/4.5-5.6L IS (Image Stabilizer) USM Autofocus Lens:

        I am an active tiger conservator & involved in protection awareness through photojournalism. My prime intention was to capture secrets from the Indian Jungles & present it to everyone in a very different way. Pictures that talk by itself. Canon 100-400 L help to capture these lovely snapshots in time as-it-is. A very tact photo is received for nearly all photos.

        • Was this a gift?:
        • No

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        5.0

        Another well built canon L series lens

        By Lew

        from Tulsa, ok

        About Me Pro Photographer

        Verified Buyer

        Pros

        • Consistent Output
        • Durable
        • Strong Construction

        Cons

          Best Uses

          • Landscape/Scenery
          • Sports/Action
          • Weddings/Events
          • Wildlife Photos

          Comments about Canon Zoom Telephoto EF 100-400mm f/4.5-5.6L IS (Image Stabilizer) USM Autofocus Lens:

          Really nice

          • Was this a gift?:
          • No

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          5.0

          Amazing lens

          By Wedding, Portrait, and Landscape

          from East coast

          About Me Pro Photographer

          Pros

            Cons

              Best Uses

                Comments about Canon Zoom Telephoto EF 100-400mm f/4.5-5.6L IS (Image Stabilizer) USM Autofocus Lens:

                Like many others I read many reviews stating about the push pull of the zoom. I really like the way it zooms. It is much easier to hold it steady and zoom. To make a turn style zoom, and have it zoom from 100-400, it would make keeping the lens steady more difficult. Also, it is very easy to find a bird looking through the lens at 100, and quickly zoom in to 400. I think Canon designed this lens very well. The image quality is just amazing, one of the sharpest lenses I own, and I own the Canon 50L and many other great lenses. It is hard or impossible to tell a 100 percent view from the actual photo. The contrast and color of this lens is different from the rest, I really like the photos I am able to get with it. If you are on the fence between this and a 300 or 400 prime, I recommend going this route. The image quality literally could not get any better, plus the lens makes it easy to spot small birds or wildlife at 100mm. Built very solid too. One of my favorites!

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                (1 of 1 customers found this review helpful)

                 
                5.0

                100-400mm L Glass is AWSOME!!!!!!

                By Dr. T.

                from Clovis, CA

                About Me Semi-pro Photographer

                Verified Reviewer

                Pros

                • Consistent Output
                • Durable
                • Easily Interchangeable
                • Fast / accurate auto-focus
                • Great color
                • Great picture quality
                • Razor Sharp
                • Rugged
                • Strong Construction

                Cons

                • NONE

                Best Uses

                • Nature Photography

                Comments about Canon Zoom Telephoto EF 100-400mm f/4.5-5.6L IS (Image Stabilizer) USM Autofocus Lens:

                Bird Photos.

                • Was this a gift?:
                • No

                Share this review

                (1 of 1 customers found this review helpful)

                 
                4.0

                One of the Best Tiger Photography Lens

                By Jungle Rhythms - Nirmalya

                from Tiger Reserves of India

                About Me Semi-pro Photographer

                Verified Buyer

                Pros

                • Durable
                • Easily Interchangeable
                • Nice Bokeh
                • Strong Construction

                Cons

                • Heavy

                Best Uses

                • Wildlife Photos

                Comments about Canon Zoom Telephoto EF 100-400mm f/4.5-5.6L IS (Image Stabilizer) USM Autofocus Lens:

                I am an active tiger conservator & involved in protection awareness through photojournalism. My prime intention was to capture secrets from the Indian Jungles & present it to everyone in a very different way. Pictures that talk by itself. Canon 100-400 L help to capture these lovely snapshots in time as-it-is. A very tact photo is received for nearly all photos.

                • Was this a gift?:
                • No

                Share this review

                (1 of 1 customers found this review helpful)

                 
                5.0

                Quick and Sharp

                By Margie

                from White Plains, NY/Jupiter, FL

                About Me Photo Enthusiast

                Verified Buyer

                Pros

                • Easily Interchangeable
                • Fast / accurate auto-focus
                • Rugged

                Cons

                  Best Uses

                  • Sports/Action
                  • Wildlife Photos

                  Comments about Canon Zoom Telephoto EF 100-400mm f/4.5-5.6L IS (Image Stabilizer) USM Autofocus Lens:

                  Quick and sharp is exactly what I was looking for for my wildlife photography. This lens took my photos from great to outstanding! I am very happy with my new toy.

                  • Was this a gift?:
                  • No

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                  (1 of 1 customers found this review helpful)

                   
                  5.0

                  Very pleased thus far.

                  By 30/90

                  from Metairie, LA

                  About Me Photo Enthusiast

                  Verified Buyer

                  Pros

                  • Effective IS dual mode
                  • Fast / accurate auto-focus
                  • Image quality
                  • L Series Color Contrast
                  • Smooth precision of zoom
                  • Strong Construction

                  Cons

                  • No complaints yet

                  Best Uses

                  • Moon shots
                  • Sports/Action
                  • Wildlife Photos

                  Comments about Canon Zoom Telephoto EF 100-400mm f/4.5-5.6L IS (Image Stabilizer) USM Autofocus Lens:

                  I use the lens primarily for wildlife. The hand held moon shots were an unexpected plus. I have found the "trombone zoom" very smooth and easy to operate. Image quality of my copy is closely on par with my 70-200 f2.8 L series. Autofocus has been flawless and very quiet, making it really nice for wild life. I have found the IS vey effective, allowing for some action shots off the tripod. Color and contrast are comparable to that of my 70-200 f2.8 L glass. I have found the lens neither too heavy nor too cumbersome. This is L-Series quality all the way. B&H did it's usual great job of pre-purchase education and prompt delivery. Two things you just won't beat....Canon L Series quality/precision and dealing with B&H, "The Professional's Source."

                  • Was this a gift?:
                  • No

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                  (1 of 1 customers found this review helpful)

                   
                  5.0

                  I would recommend this product to others

                  By Del the Photographer

                  from Victoria, BC, Canada

                  About Me Photo Enthusiast

                  Verified Buyer

                  Pros

                  • Consistent Output
                  • Durable
                  • Easily Interchangeable
                  • Fast / accurate auto-focus
                  • Nice Bokeh
                  • Strong Construction

                  Cons

                  • Heavy

                  Best Uses

                  • Landscape/Scenery
                  • Sports/Action
                  • Wildlife Photos

                  Comments about Canon Zoom Telephoto EF 100-400mm f/4.5-5.6L IS (Image Stabilizer) USM Autofocus Lens:

                  The only two downfalls with this lens is it's heavy(normal for this type of lens) and in low light conditions the auto focus hunts a little, this can be compensated with ISO adjustment. The image stabilization is awesome as I do a lot of my photography hand held and the images come out tack sharp. Even photos I took from a boat on rough water of whales turned out really good.

                  • Was this a gift?:
                  • No

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                  (1 of 1 customers found this review helpful)

                   
                  5.0

                  Amazing Lens

                  By Stosh

                  from Texas

                  About Me Photo Enthusiast

                  Verified Buyer

                  Pros

                  • Durable
                  • Fast / accurate auto-focus
                  • Rugged
                  • Strong Construction

                  Cons

                  • Heavy

                  Best Uses

                  • Landscape/Scenery
                  • Sports/Action
                  • Wildlife Photos

                  Comments about Canon Zoom Telephoto EF 100-400mm f/4.5-5.6L IS (Image Stabilizer) USM Autofocus Lens:

                  I just got this lens a week ago and already am in love with it. The quality of the images from 100 to 400 is very sharp. This is a heavy, well-built, and solid lens. The auto-focus is fast and quiet. I plan on using this for wildlife, but walked around the city the other day and had a blast with it!

                  I've seen others complain about indoors and low light...I think that if you try to use this lens in anything other than an arena you will have problems with the light. But it is a f/4.5-5.6 so I wasn't looking for a low light lens, not at that length at least and what I could afford.

                  • Was this a gift?:
                  • No

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                  (1 of 1 customers found this review helpful)

                   
                  5.0

                  I should've bought this puppy years ago!

                  By DonSanAnto

                  from San Antonio, TX

                  About Me Photo Enthusiast

                  Verified Buyer

                  Pros

                  • Durable
                  • Fast / accurate auto-focus
                  • Rugged
                  • Sharp at all focal length
                  • Strong Construction

                  Cons

                  • Heavy

                  Best Uses

                  • Landscape/Scenery
                  • Night Photography
                  • Sports/Action
                  • Wildlife Photos

                  Comments about Canon Zoom Telephoto EF 100-400mm f/4.5-5.6L IS (Image Stabilizer) USM Autofocus Lens:

                  Yep --it's all it's supposed to be, and more. For a long time I was hesitant 'cause you have to push 'n pull to zoom; however, it's slick and easy and you can easily adjust the tension (featherlight or torqued).

                  It's surprisingly easy to cradle to shoot freehand, sans tri/monopod.

                  I ran around with my old Canon EF 75-300mm IS USM zoom for 15 years for my 'long shots'; however, this baby truly reaches out at 640mm and the lenses are superb, as are all Canon L-types. I use it on my #1 camera, Canon 50D, and now my former primo 75-300mm is on my Canon 10D as backup.

                  Read the global reviews on this zoom --it's all that and more. I'm taking it to the Sea of Cortez by Baja to shoot whales in March and to Glacier Bay in September ... I'll post some shots to prove how excellent the zoom is.

                  Furthermore, I got a great price through B&H and I also give them a 5* review for their courteous and professional staff.

                  If you don't have one of these puppies in your gadget bag you're missing out --it's superb.

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                  (1 of 1 customers found this review helpful)

                   
                  5.0

                  Canon 100-400mm f/4.5-5.6

                  By Jeff

                  from Goldsboro, NC

                  About Me Semi-pro Photographer

                  Verified Buyer

                  Pros

                  • Fast / accurate auto-focus
                  • Rugged
                  • Strong Construction

                  Cons

                  • Heavy

                  Best Uses

                  • Sports/Action
                  • Wildlife Photos

                  Comments about Canon Zoom Telephoto EF 100-400mm f/4.5-5.6L IS (Image Stabilizer) USM Autofocus Lens:

                  This is a great lens. It is designed mostly for outside use but I have played with it indoors at a shutter speed of 1/30th of a second and still had sharp photos. I needed a lens that gave me moore reach and this does it. Can't wait to get out and use it more.

                  • Was this a gift?:
                  • No

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                  (1 of 1 customers found this review helpful)

                   
                  5.0

                  Outstanding product

                  By Carlos the photographer

                  from Mauá, São Paulo, Brazil

                  About Me Casual Photographer

                  Verified Buyer

                  Pros

                  • Easily Interchangeable
                  • Fast / accurate auto-focus
                  • Strong Construction

                  Cons

                  • Heavy
                  • Poor in Low Light

                  Best Uses

                  • Landscape/Scenery
                  • Wildlife Photos

                  Comments about Canon Zoom Telephoto EF 100-400mm f/4.5-5.6L IS (Image Stabilizer) USM Autofocus Lens:

                  I use this lens for nature picture. The quality of it and how fast it is make the difference. A little bit heavy but useful for my propose.

                  • Was this a gift?:
                  • No

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                  What's in the Box

                  Canon Zoom Telephoto EF 100-400mm f/4.5-5.6L IS (Image Stabilizer) USM Autofocus Lens
                   
                   
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