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List Price : $790.00 Price : $464.00
List Price : $790.00 Price : $464.00
Product Description
Designed to extend a lenses focal length by a factor of 2x, the redesigned Canon Extender EF 2X III delivers optical performance on par with the finest Canon super telephoto lenses. It features a built-in microcomputer for seamless communication among camera body, lens and extender, features careful lens placement and coatings to minimize ghosting, flare and chromatic aberration, and even has a new Fluorine coating that keeps soiling, smears, fingerprints to a minimum. Extender EF 2X III meets necessary standards in terms of rugged, dustproof and water-resistant construction, and should be in every professional's camera bag.
- Extender Cap E II
- Lens Dust Cap E (Rear)
- Lens Case LP811
Canon EF 2.0X III Telephoto Extender for Canon Super Telephoto Lenses Reviews
Canon EF 2.0X III Telephoto Extender for Canon Super Telephoto Lenses Reviews
| 66 of 70 people found the following review helpful  Double the focal length of of any L series telephoto lens, This review is from: Canon EF 2.0X III Telephoto Extender for Canon Super Telephoto Lenses (Electronics) The Canon EF 2X III Extender is a reasonably inexpensive way to double the focal length of of any L series telephoto lens. This is the very first extender I have purchased, so I can not compare it to it's predecessors. But, I am very impressed. I use it with the Canon 100-400L F4.5-5.6IS with minimal loss in quality. Much cheaper than spending $12k for an 800mm lens.It's obviously intended for use with a tripod, as you will loose 2f stops. But I find most people won't do much shooting hand held with a 400mm lens anyway. You may be able to get away with using it handheld with some of the faster / smaller lenses. You will also have to manual focus when added to a slower lens like F5.6. If you are thinking about using this, do your homework, know it's limitations, and how to use it. It's a great addition for wildlife photography when getting closer to your subject is tricky, or not an option. 23 of 24 people found the following review helpful  Clarifications for interested buyers, By This review is from: Canon EF 2.0X III Telephoto Extender for Canon Super Telephoto Lenses (Electronics) Things to keep in mind when reading various review.1. There is no such a thing as free lunch. Anyone who claims fast autofocus with this combo is smoking something. Canon white papers claims a 75% reduction in autofocus speed. It will also degrade image quality, no matter what lens you put it on. 2. As for Image quality, acceptability, and degradation, there are several factors in play. Of course where you end depends on where you start. used on an optically superb lens, after some image degradation, you can still end up with good image quality. with mediocre lens, you end up with bad, and with a bad lens, you end up with mush. The other factor in acceptability is the image density of the sensor. The image quality will be a lot more acceptable on a 5d2 or 40D for example than the 7D. the higher pixel density of 7D is far more demanding on lens resolution. furthermore, the cropped sensor of same pixel count, greatly magnifies Chromatic aberration. 3. In... Read more 19 of 20 people found the following review helpful Initial results here.., By Amazon Verified Purchase This review is from: Canon EF 2.0X III Telephoto Extender for Canon Super Telephoto Lenses (Electronics) This is my first extender, and I have not used any other ones before. So far I have tried this on 135mm f/2L and 200mm f/2L, the canon's best :). The results on 135mm f/2L is extraordinary -- I am the guy who scans for each pixel in the photograph. I was amazed to see the sharpness of the resulting 270mm f/4L, the images are super sharp even at f/4. However, the results are not so great on 200mm f/2L. I need to do extensive test when I find time, and I hope to update it in the due course. If someone here requests a test, I'll be happy to do it faster. |
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