Canon EF 1.4X II Extender Telephoto Accessory

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Canon is an industry leader in professional and consumer imaging equipment and information systems. Canon's extensive product line enables businesses and consumers worldwide to capture, store and distribute visual information. Cannon provides a wide range of accessories that are fully tested and 100% compliant with the corresponding equipment. All accessories are noted for their high reliability and superior quality.The Company offers its new EF 1.4x II extender that is designed for use with all Canon EOS System cameras and most high-end EF telephoto and super-telephoto lenses including all fixed-focal length L-series lenses from 135mm to 1200mm as well as several L-series EF telephoto zoom lenses. Its new internal anti-reflection construction improves contrast even when shooting in heavy backlit conditions. The EF 1.4x II extender will give photographers the additional telephoto capabilities they need without sacrificing image quality. In addition, the compact design of the extender will allow photographers to travel with a lighter, more compact gadget bag.
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Technical Details

- 1.4x telephoto extender for multiplying focal length of Canon 135mm or longer lenses
- Fits all 135mm or longer fixed focal length lenses and some 70-200mm telephoto lenses
- Preserves autofocus on any EOS camera when combined with f/4 or faster lens
- Weather-resistant construction and improved anti-reflective surfaces in the barrel
- Measures 2.9 inches in diameter and 1.1 inches long; weighs 7.8 ounces
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 "Sharp Images Rendered With Specified L Quality Zooms and Primes" 2010-01-11
By PJ (GTA, Canada)
Like:



- Smaller than the Canon EF 15mm f/2.8 Fisheye USM.

- Solid build.

- Dust and water resistant.

- Drawstring pouch.

- Minor resolution loss on my 70-200/4L IS and 300/2.8L IS (nothing to worry about).

- Maintains autofocus with lenses f/4.0 and faster (this is important to remember).

- Maintains optical image stabilization.







Dislike:



- Extender Cap II (front cap) cannot be used as a camera body cap.

 "NOT FOR USE WITH CANON 100-400F4.5 IS LENS" 2009-12-25
By EASYJOHN (VIRGINIA, USA)
CANON DOES NOT STATE CLEARLY THAT THE EXTENDER WILL NOT WORK IN AUTO FOCUS MODE WITH THE CANON 100-400 F/4.5-5.6L IS USM LENS. I BOUGHT THIS EXTENDER UNDER THE IMPRESSION THAT IT WOULD WORK.See canon information (This tele extender can be used with fixed focal length lenses 135mm and longer (except the 135mm f/2.8 Softfocus lens), and the EF 70-200 f/2.8L, 70-200 f/2.8L IS, 70-200 f/4.0L, 70-200 f/4.0L IS USM, and 100-400 f/4.5-5.6L IS zoom lenses) AS I READ THIS INFORMATION I UNDERSTOOD IT TO MEAN IT WOULD WORK WITH THIS LENS. AM I WRONG?

I TRIED 2 EXTENDERS AND THEY WOULD NOT WORK. EMAILED CANON, HERE IS THEIR RESPONSE

From: Canon Support - 2

Sent: Sat, 19 Dec 2009 14:14:05 +0000 (UTC)

Subject: Re: Response from Canon - Technical Support

(KMM10520549V32035L0KM)

Thank you for writing to us. We value you as a Canon customer and

appreciate the opportunity to assist you.

"Effective aperture is reduced by one f-stop; autofocus is possible on

any EOS camera when combined with a lens having an f/4 or faster maximum

aperture."

Your EF 100-400 is already at F4.5, at its widest.

"This tele extender can be used with fixed focal length lenses 135mm and

longer (except the 135mm f/2.8 Softfocus lens), and the EF 70-200

f/2.8L, 70-200 f/2.8L IS, 70-200 f/4.0L, 70-200 f/4.0L IS USM, and

100-400 f/4.5-5.6L IS zoom lenses."

This statement is also true, it can be used. However, you will need to

focus manually.You may want to try choosing center point only as a focus

point and see if that will allow the camera to autofocus the lens.

We hope this information is helpful to you. Please let us know if we

can be of any further assistance with your EF 100-400mm f/4.5-5.6L IS

USM .

Thank you for choosing Canon.

Sincerely,

Jeff

THIS STATES THAT AUTO FOCUS WILL NOT WORK!!!!!

 "Canon 300MM F4= 5 star... Sigma 70-200MM =zero stars" 2009-11-21
By J. Gwinn (West Virginia USA)
Fortunately my intentions are to use mainly with my canon 300mm f4..I give 5 stars in this regard.The drop off in sharpness is apparent when shooting photos of birds. The plummage/feather detail expose the sharpness drop off slightly. But with regard to sports where eyelash/hair splitting detail is unimportant,I see virtually no difference. Of course you lose one stop of light which is no issue in most daylight situations.



The mount on my Sigma 70-200mm is not compatible with the telextender. The problem is I can't tell you which version. I purchased my sigma lens in 2006..For that year one version was marketed in Feb 2006 another in June 2006..I am assuming this is the problem?? Also I see where another verion was marketed in 2008..I see more than a few reviewers which do not have compatibility problems. But for me i'll give it "0" stars regarding my sigma lens.



Nice addition to my bag of lens. Very compact when you consider it is almost like carrying two telephoto lens instead of one. I gave this product a two star to flag potential buyers of compatibility problems with the Sigma.

 "Let me comment on the 100-400mm with the 1.4x extender" 2009-11-06
By Michael A. Duvernois (Minneapolis, MN United States)
Don't do it! It sounds just plausible on paper, with a 1D professional camera it'll even autofocus using the central focal sensor (on lesser bodies it won't autofocus unless you tape up some contacts to fool the camera into trying, then it'll sometimes autofocus), and the 1.4x generally doesn't soften images too much. But no. It's not a usable combination on either professional or amateur bodies, the image quality just takes too much of a hit.



The four stars are for using this well built tool with a more appropriate lens, the 70-200mm f/2.8 or any of the telephoto primes. But there are lots of reviews telling you that.

 "Great addition to the lens" 2009-10-06
By Paul S. Embley (Williamsburg, VA)
I'm using this with a 70-200 2.8L IS USM lens and it works great. Fast focusing, great alternative to another lens. The only downside is the loss of an f-stop.


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Canon EF 2X II Extender Telephoto Accessory

Buy Cheap Canon EF 2X II Extender Telephoto Accessory

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This extender has been re-designed optically and offers excellent performance with compatible EF lenses (same as the Extender EF 1.4x II). It features a new seven-element design, and same weather-resistant design and anti-reflection internal construction as the new EF 1.4x II. The EF 2x II doubles the focal length of any lens it's mounted to, and reduces its effective aperture by two stops. With the EF 2x II, AF is possible with any EOS body if the lens has an f/2.8 or faster maximum aperture, and compatible Image Stabilization lenses maintain the IS feature when used with any current EOS camera.
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Technical Details

- Telephoto extender designed to double Canon EF lens focal length
- Ideal for shooting close-ups from a distance at sporting events
- Weather-resistant and anti-reflective internal construction
- Maintains autofocus with any EOD body with f/2.8 or faster aperture
- Measures 2.8 inches in diameter and 2.3 inches long; weighs 9.3 ounces
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 "2x extender" 2010-01-30
By T. Chocklett (Roanoke, Virginia)
This is a must to get closer to your subject. I haven't noticed any loss of picture quality. Very slight if any.

 "Nice, but autofocus needs to work with more lenses" 2010-01-25
By T. Schreier (Bettendorf, Iowa)
I just received it this weekend, so I don't have much experiece with it. My only complaint is in the features, not the performance. It would be better if the autofocus worked with more lenses. More specifically, the Canon 100-400 L Series (4.5-5.6). Otherwise it works great. I'm able to shoot much closer without spending $12,000 for an 800mm lens.

 "Acceptable for my needs" 2010-01-20
By Mike (Glendale, CA United States)
I use this with my 70-200mm 2.8 IS lens. I get "acceptable" results, because I lose a little in sharpness and a couple of stops, but it is a much cheaper solution than buying a 400mm dedicated. For the price this is a good value.

 "Canin 2x extender" 2010-01-09
By J. LEFEVER
I used it exclusively on my 1DsmkII with the Canon 70-200mm f/2.8 L IS for my month in Jerusalem - originally it was joined to a 5DmkII with the Canon 180 mm f/3.5 L macro lens - also superb image quality. I was very happy about that.



Only two problems actually (and they are not problems, just restrictions) and that is the loss of stops (on the 2.8 70-200 lens the widest I could open the aperture was 5.6 and on the 3.5 it was a bit smaller) - tough when shooting churches and darker situations, which I do. The other restriction is I could only use it with those two lenses out of my collection. It does not fit with any glass that is flush on the back end, such as the 85mm L 1.2 or the 35mm L 1.4 or the 24-70mm L 2.8, or the 14mm, or the 24mm.... etc. Mainly made for telephotos so no getting creative with it with the medium and short lenses.



I think I would have given it 5 stars if Canon could make it so as to keep the lens f/stop speed at the widest of the lens being used (in my case, 2.8 and 3.5 respectively).



With that said, I thought many times on this trip, that it was a great purchase and I am glad for having made it - loved the extra extension and shooting with a smaller lens at a max 400mm length. I am leaving it configured with my 1DsmkII and the 70-200 zoom. I like the results that much.



Is it less contrasty? less sharp? Well, not pixel peeping here, I am only asking - did I get the shot or not. And with that I can say YES! (many times in an area sensitive to picture taking). I am glad to have it in my lens case.

 "Excellent!!" 2009-12-07
By K. Garrison (L.E. California)
Go to the Canon web site make sure the 2x will work with your lenses. I use it on my 70-200 2.8/fL IS USM and although you lose 2 stops, its a lot cheaper than buying a 400mm lens not to mention a lot lighter. For those that complained about losing their AF all I have to say is learn to read and learn focus manually. You will be a much better photographer for it.


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Canon EF 70-200mm f/2.8L IS USM Telephoto Zoom Lens for Canon SLR Cameras

Buy Cheap Canon EF 70-200mm f/2.8L IS USM Telephoto Zoom Lens for Canon SLR Cameras

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For Canon SLR Camera Body / AutoFocus Compatible / Built-in Image Stabilizer / Uses 77mm Size Filters
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Technical Details

- EF mount; telephoto zoom lens
- Ultra-low Dispersion glass; image stabilizer; inner focusing; full-time manual focus; circular aperture
- 70-200mm focal length
- f/2.8 constant maximum aperture
- Micro UltraSonic Motor (USM) Includes case and lens hood
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 "Impressive." 2010-01-30
By Randall R. Racine (Blue Rock, Ohio United States)
I have been into photography for quite a few years now and I really havent gottin into lots of pictures with the lense so far but the few test photo's I did get are quite impressive! The autofocus is really nice but if you want to pick out a certain thing you want to zoom in on it easily can switch to manual focus to get the specific thing you want to take at long range. I highly recommend this item. I take a lot of wildlife pictures and this lense does the job.

 "Zoom Lens" 2010-01-30
By T. Chocklett (Roanoke, Virginia)
This is a high quality lens from Canon. It's going to cost you, but if you are looking one of the best lens, this is it. Great Closeups. It is a little on the heavy side, but it is a sign of quality. You just have to get used to it.

 "You gotta get this lens!!" 2010-01-21
By H. Peng (Simi Valley, CA)
I've been saving up for this lens for awhile now and been wanting it ever since I got my DSLR. It's expensive, but worth every cent after you shoot with it. There's nothing like seeing your pictures have that extra pop and the nice background bokeh when you use the lens at full zoom. I shoot with both a canon XT and a 40D and with both the pictures pop. I can't imagine what it would look like with a full frame 5D Mk2! If you want to have the full experience of photography - this lens is a must along with 2 other lens 16-35L and 24-70L. Can't afford it? Save up!!! It's worth it!!

 "The new area arrived:))))" 2010-01-11
By C.A.J. Photographer (Minneapolis,Minnesota)
Hi,

I was waiting for this lens...I was unable to take photographs of the swimmers indoor very well.

After I mounted this "beauty"on my camera...everything changed,suddenly I was able to go up to 1/500s w/2.8 f stop to catch swimmers in the pool.

I need to take more photographs to have more to say but right now I love it.

If you want to see more photographs please go to my web site: [...]

Thank you.

01/14/2010 I spent a few hours with this lens at the pool...guys ...simply I love it.When I walk around with this lens it makes heads turn.

You really need to work out b4 you can work with this 'horse" it is heavy but the photographs and the f stop is all what I need .

Do not spend any money on lenses with f3.5-4.5 you will scremming for f 2.8.

Enjoy and thank you Canon for such a great lens.

 "Go Ahead Jump" 2010-01-05
By M. Sanford (Florida)
I wanted to take agility pictures of my friends dog, and had trouble getting a picture of dogs going over jumps. I would have to click the picture before the dog got to the jump. Sometimes it worked but most of the time I ended up with an empty jump. I wanted a fast lens, and looked to see what the photographers at the trial were using for their terrific agility shots. They all had this lens, every last one of them. Then I wondered if the lens would work for me, a senior who was a bit afraid to spend so much money on a lense. I finally got it as a long awaited present to myself. It was everything I wanted. Not only were the dogs captured going over the jump, but also in front, over, and landing. The pictures are wonderful. I love this lens. The only problem is it is heavy, but I guess that just comes with the quality of the lens. I've had the lens for quite sometime, and people think I actually know how to take pictures. This lens will makes pictures that make you look like you know how to take pictures. Even if you are a novice. One day I'm going to take a photography class, but in the meantime it's all the lens and I love using it for pictures of the grandkids. After having this lens and loving it, I recently bought another Canon lens that is its equal at a shorter distance, and between the two of them I have so much fun taking beautiful pictures. People have even started asking me if I'm a professional. Heck no, far from it, I don't even know much about lenses but I can read and view what is being used by people taking pictures I like, so I thought I would share this with anyone looking for a lens that makes great picture even if you hardly know what you are doing. Just know it will wear you out to lug it all day around a theme park, and it doesn't fit in your pocket, but it does make fantastic photos.


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Lithium-Ion Battery + Battery Charger with Car Adapter for Canon Digital SLR EOS Rebel XS / EOS Rebel T1i / EOS Rebel XSi

Buy Cheap Lithium-Ion Battery + Battery Charger with Car Adapter for Canon Digital SLR EOS Rebel XS / EOS Rebel T1i / EOS Rebel XSi

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Its a Brand New Non-OEM Lithium-Ion Battery charger with car charger adapter
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Technical Details

- Includes Brand New Non-OEM Lithium-Ion Battery and Battery Charger with Car Charger Adapter
- Charger: Smart LED charging status indicator. Voltage: 100V - 240V. UL & CE listed.
- AC/DC output for both home and travel use. Collapsible plug on the back of wall charger.
- Battery Type: Lithium-Ion. Integrated microchip prevents overcharging & lengthens battery life.
- No memory loss effect. Camera is Not Included. Brand New Non-OEM Items.
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 "very good products" 2009-11-24
By Dawn M. Fuss (Vieques, PR)
Product arrived very quickly, was exactly what was pictured and what I ordered. Work beautifully and recharg wonderfully. Would definitely order again! Thanks very much!


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Opteka .35x HD² Super Wide Angle Panoramic Macro Fisheye Lens for Canon EOS / EF

Buy Cheap Opteka .35x HD² Super Wide Angle Panoramic Macro Fisheye Lens for Canon EOS / EF

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The new Opteka High Definition² .35x Ultra Wide Angle Fisheye Converter Lens increases the versatility of your existing lens to provide breathtaking ultra wide angle views. And it's so easy to use! Additionally the built-in detachable macro lens allows you to take extreme high resolution close-up shots! Nothing changes the way you see the world like High Definition² and no company does High Definition² like Opteka. Opteka's glass optics define High Definition. Change the way you view the world. Enjoy outstanding detail, enjoy enhanced clarity, enjoy Opteka!
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Technical Details

- Opteka .35x HD² Super Wide Angle Macro Fisheye Lens
- High Definition² - 2 times the resolution of standard high definition lenses
- Professional High Speed Auto Focus, Full Panoramic Capability, High Quality Crystal Optics, & AF Infrared Compatible
- Lens front Thread 67mm, 8 Element Lens, 180° Degree Capability
- Made in Japan & Includes 10 Year Worldwide Warranty
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 "Does the job for my T1i" 2010-01-17
By AmazonAddict (Bay Area, CA)
For the price, you really can't get anything better. It's a great addition to my equipment, but I would not say it does a very good job of focusing the entire picture. The camera does a good job of getting the image clear in the center, but it gets blurry around the edges. Probably my least favorite thing about this attachment is that it needs the adapter to fit on Canon lenses. It wouldn't be a problem if I could keep this adapter ON all the time, but if I leave it on the camera, I can't use the lens cap. If I put it on the fisheye attachment, same problem - the cap doesn't fit. It says the fisheye attachment is for the canon EOS lenses, but I don't believe that to be true, since I need to lug around this stupid adapter all the time.

 "Fun for the Price" 2010-01-07
By Vince-IT
I wasn't expecting to be too enthralled considering the price. However, I wanted to experiment with a fisheye lens without spending so much money on an actual super wide angle lens, from say Canon or whatnot. This conversion lens converts your lens of choice, in my case the Canon EF-S 18-55mm f/3.5-5.6 IS kit lens, into a super wide angle fisheye. For the focal length, just multiply your focal length with ".35". Therefore, your focal length will vary depending on which lens you use this with.



I have been quite satisfied. I've generally been using it as a toy lens and having fun with it. It's constructed of metal and quite simple. I would imagine if it were constructed of plastic it would turn many people off. I'm not afraid of putting this thing through abuse. The image quality isn't much to write home about, but considering the price and metal construction, it wouldn't hurt at all to pick one up for yourself.

 "Good quality for the price" 2009-12-20
By M. Bittersmith
The product is what you would expect for the price. The lens is made of two parts and the macro lens can be used independently from the fisheye filter. The macro lens can be used within 1-2 mm of the object being photographed. Quality is average- the fisheye filter produces a slightly blurry image. The fisheye effect is comparable to that of real fisheye lenses.

 "Nice , cheap, and much fun" 2009-12-17
By Kasia
I used this converter lens with my panasonic Lumix FZ28, yes it fit it too, the image is surprised sharp as for the spended money, not recommended for night shots especially on the street where is to much lights, the glass create a flares from each light in the shot, it looks like much fun for the Christmas time but not really great, the horizontal view is not exactly 180 degrees , however I had much fun testing this product out and it is worth the money for sure , the lens is made of metal and optical glass so not plastic as in the other cases around, I would recommend this product for the amateurs and beginners or just regular hobbyist. if you don't have what you like, you have to like what you have.... it is always better as nothing and if you have $800 at last to spend for a better stuff just skip this page..

 "good wide angle lens for the price" 2009-12-03
By Jin Chong (New York City)
i rated it 5 stars because of the quality that i get from the price.



i uploaded couple photos here on amazon so you can have more idea about it.

i put this lens on my 17-50mm f/2.8 lens. pictures quality came out good with the external flash. ( don't use the built in fash because the lens is too long and it will have a shadow)



over all this product is good.


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CANON RS-80N3 Equivalent Wireless Remote For EOS-3, 1v HS/1v, 1D-series, 1Ds-series, 5D-series, EOS 7D 10D, 20D, 30D, 40D, 50D, D30, D60 and D2000

Buy Cheap CANON RS-80N3 Equivalent Wireless Remote For EOS-3, 1v HS/1v, 1D-series, 1Ds-series, 5D-series, EOS 7D 10D, 20D, 30D, 40D, 50D, D30, D60 and D2000

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The Wireless shutter release is handy for taking pictures of subjects that are difficult to approach, or to minimize vibration for close-ups and time exposure. It employs a superior anti-interference functionality and allows a choice of 16 different RF channels. This is particularly useful if several photographers are working in the same vicinity as you need only choose a specific channel for each photographer to prevent overlapping signals. Another use would be the ability to control multiple cameras with a single remote by assigning each camera their own receiver channel and switching the channels on transmitter. Range up to 100m (320ft.) without obstacles - Retractable antenna for Long range shots! Designed for groups, macros, Time Lapse Mode, Long exposures / Shutter Mode, Continuous shooting mode, etc.

Compatible with EOS-3, 1v HS/1v, 1D-series, 1Ds-series, 5D-series, 10D, 20D, 30D, 40D, 50D, D30, D60 and D2000
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Technical Details

- Recommended for preventing camera shake during close-up (macro) photography
- Range up to 100m (320ft.) without obstacles - Retractable antenna for Long range shots!
- Designed for groups, macros, Time Lapse Mode, Long exposures / Shutter Mode, Continuous shooting mode, etc.
- Low power consumption minimizes the need for battery replacement
- 16 Control Output Channels
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 "not remotely quality" 2009-12-27
By Peter Bullard (MA USA)
Could not get the battery cover off to get the battery in. The battery connections where not set right. Finally got the cover off almost breaking it. Not a quality product.It Kept switching it's self to multiple shots. I'll keep it file the connections down and see how long it lasts.

 "Great Remote for Canon DSLR's" 2009-12-25
By Eric D. Brown (Dallas, TX)
This is a well designed wireless remote for Canon DSLR cameras. Love the ability to mount the receiver on the flash shoe. Great receiver and transmitter and has great range.

 "Great Investment" 2009-12-03
By Angela Pierce (Appleton, WI USA)
I am very happy with the wireless remote! I got this for my Canon 7D and I played with it all the way from another room on the other side of the house and it worked like a charm. I wish I would have had one that shot this far away when we did our last family photo -- this year I'll have it at least. It's surely worth the money and the quality so far is great.

 "Wireless Remote" 2009-11-03
By Randall J. Jones
It was a pleasure doing business, the product got to me quicker than they promised, it performs as advertised, and it meets all my needs. Very easy to use, nothing fancy.

 "Works Great at an Excellent Price!" 2009-11-03
By Michael Deangelis
The unit works great - just as advertised. It works with my 20D and my 5D Mark II. It was great deal

considering the prices of other comparable units on the market


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Buy CANON RS-80N3 Equivalent Wireless Remote For EOS-3, 1v HS/1v, 1D-series, 1Ds-series, 5D-series, EOS 7D 10D, 20D, 30D, 40D, 50D, D30, D60 and D2000 Now

Canon EF 100-400mm f4.5-5.6L IS USM Telephoto Zoom Lens for Canon SLR Cameras

Buy Cheap Canon EF 100-400mm f4.5-5.6L IS USM Telephoto Zoom Lens for Canon SLR Cameras

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4x Zoom Lens variably extends from 100mm to 400mm focal length / For use with Canon 35mm SLR Cameras / EF-Mount / USA
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Technical Details

- 100-400mm telephoto zoom lens with f/4.5 maximum aperture for Canon SLR cameras
- 2 Image Stabilizer modes make it easy to capture far-off action or close-in portraits
- Flourite and Super UD-glass elements largely eliminate secondary spectrum
- Compatibility with extenders 1.4x II and 2x II; 5.9-foot close focusing distance
- Measures 3.6 inches in diameter and 7.4 inches long; 1-year warranty
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 "Canon 100-400mm telephoto lens." 2010-01-27
By Rich Maher (Rohnert Park,CA USA)
I upgraded to this I series lens from a Tamron 200-500 telephoto lens and I am very happy that I did.The image quality is noticeably clearer especially at 800mm. (I'm using a Canon 2x extender). It's heavy but you'll be using a tripod anyway. Hey, it's a Canon!

 "Canon EF 100-400 MM F 4.5-5.6 IS USM Zoom Lens" 2010-01-25
By LauraHiggins
As an amateur nature photographer I wanted to purchase a lens that would let me get closer to my subjects, (affectionality referred to as critters), without disturbing them, while, feeding, flying, or playing. This lens really delivers great results. My bird in flight shots are crisp and clear. The details that I now obtain are vivid and it has enabled me to finally achieve the nature photos that I wanted without spending thousands of dollars.

I would highly recommend this lens to nature or wildlife photographers.

 "Very good lens" 2010-01-24
By Mike
Got great pics with this lens. Took it out for a one week safari earlier this month and the pics were the best I have ever taken. One minor complaint -- wish it has a lock, as it so big and heavy, that without a lens lock, it sometimes can slide out unexpectedly.

 "Canon 100-400mm f/5.6 IS L Lens" 2009-12-20
By C. Fenton (Winchester, VA USA)
This lens is great for nature and bird photography as long as you have suitable lighting conditions. It's at its best in soft natural light (overcast days), and performs very well in bright sunlight. Tough to get decent shots in low light with moving subjects. Fine for static subjects in low light. Not recommended for use with a 2x teleconverter unless you have a pro camera body (such as a 1Ds MK II) because you will have to focus manually. Works better with a 1.4x converter for greater reach of far away subjects with a 50D type body. Since it's a telephoto, it is not quite as sharp at each end of the focal range, but I find 200-300mm works extremely well. This lens is not extremely heavy, but it does get tiresome to handhold after about 30-40 minutes, at least for me, so a tripod or monopod is highly recommended as a stable support for the best images if your arms are weak and you will be shooting for more than an hour. I use mine on a Wimberley Head and Gitzo Systematic tripod. The zoom feature is a push-pull style that takes some getting used to, and I find it a bit cumbersome. In order to change focal lengths you have to loosen and tighten the zoom ring tension, or set it just so, and I find it a challenge to keep a specific tension without accidentally tightening or loosening the ring while hand-holding and gripping the lens barrel for support. The IS feature works well for hand-held shots. For birds and wildlife, this is an all-around good starter L-series lens. If I had more money to spend, I would have gone for the 300mm f/2.8 IS or 400mm f/2.8 IS however.

 "Fantastic Professional Lens for Sharp, Up Close Photos" 2009-12-15
By C Kaufman (Ohio, USA)
I just got my Canon 100-400mm IS L lens last week. I took it out and gave it a workout yesterday at the Zoo with what may be a once-in-a-lifetime opportunity: shooting baby lions that are rarely seen by the public. Prior to this, I was using a Canon EF 70-200mm f/2.8L IS USM Telephoto Zoom Lens for Canon SLR Cameras with the Canon EF 2X II Extender Telephoto Accessory when I needed more than 200mm. A website reviewer's photos demonstrating how much blur the extender adds convinced me to sink the necessary funds into the 100-400mm lens. And boy, was it worth it! I had struggled with how soft images came out with the extender, even when I used a tripod and a shutter release. But I did all handheld work yesterday with tumbling, rambunctious baby lions in cloudy conditions, and got fantastically sharp, close photographs, even at 400mm.



There are a couple of things people seem to complain about with this lens. First, that it's heavy, and second, the push-pull zoom. I want to address both.



Weight: Yes, after shooting for 3 hours with this 3-pound baby, my arm was tired, but it wasn't a hardship by any means, and I wasn't sore the next day. The lens also has a tripod ring on it so when you use a tripod you can mount the lens directly onto the tripod, if the weight really bothers you. The nice thing is that it's a solid, well-made lens.



Push-pull zoom: I expected to find it frustrating, at least until I got used to it, but I got used to it in minutes and found it was actually beneficial -- I could shift from 100 to 400mm (or anywhere in between) much faster than I could have if I'd been twisting to zoom. I also quickly got into the habit of twisting the resistance ring that changes how easily the push-pull mechanism works. As soon as I changed the focal length, I'd twist to keep it there, but not so tightly that I couldn't change again if I wanted to. I had no problems with the lens slipping out to its full extension when I didn't want it to, even when I quickly lowered the camera. (Had to do that several times given that Mama Lion didn't like big camera and lunged the fence more than once. It was a nice, sturdy fence, so I was safe, but I didn't want to upset her, nor did I want a big lunging lion looming between me and the babies and blocking the view.)



Auto-focus is quiet and quick, and though once in a while I had a bit of trouble focusing through fairly close-set bars, I got so many amazing shots that I can forgive the very few I missed while the focusing was struggling. I also used the lens with a pacing tiger, and the lens and camera (EOS 40D) were able to work quickly enough to get far more sharp pictures than blurry, even when the tiger was close and moving fast.



The Image Stabilization is amazing. Neither of my other two lenses has it, but I'd never buy another lens without it!



You can focus in on subjects as close as 1.8m, which is great with animals who are constantly doing the unexpected. When the tiger came right up to the glass, I could take a few steps back and get photos that were as sharp as the ones I took of the animal farther away.



Finally, I noticed that at 200mm, the fence was still in the picture. At 400mm, the fence vanished completely, even when I (and the cubs) were fairly close to it (though not on the same side! :) If I'd been relying on my regular lens and the extender, I know the final shots wouldn't have looked like they were taken in the wild -- which is always the goal!



Bottom line: fantastic investment for a fantastic lens


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