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Canon EF 1.4X III Telephoto Extender for Canon Super Telephoto Lenses
|Price:||$427.95 & FREE Shipping|
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- Focal Length & Maximum Aperture Magnification: 1.4x
- Lens Construction of 7 elements in 3 groups
- Max. Diameter x Length - 2.8" x 1.1" (72.0mm x 27.2mm)
- Weight - 7.9 oz (225g)
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|Sold By||SSE Photo & Video||Amazon.com||Amazon.com||Adorama Camera||Amazon.com||SSE Photo & Video|
|Compatible Camera Mount||Canon EF||Canon EF||Canon EF||Canon EF, Canon EF||Canon EF||Canon EOS|
|Item Dimensions||1.06 x 2.83 x 2.83 in||2.09 x 2.83 x 2.83 in||7.6 x 3.7 x 3.7 in||0.79 x 2.72 x 2.72 in||10.12 x 3.54 x 3.54 in||0.39 x 0.39 x 0.39 in|
|Item Weight||7.83 ounces||0.72 lb||3.46 lbs||5.04 ounces||2.8 lbs||0.04 ounces|
|Lens Type||35mm||35mm||Zoom lens||Teleconverter||Prime lens||Teleconverter|
|Maximum Focal Length||1 millimeter||2 millimeters||400 millimeters||420 millimeters||400 millimeters||280 millimeters|
|Minimum Focal Length||1 millimeter||2 millimeters||100 millimeters||70 millimeters||400 millimeters||15 millimeters|
|Photo Filter Thread Size||—||—||77 millimeters||—||77 millimeters||—|
The Canon Extender EF 1.4x III extends a lenses focal length by a factor of 1.4x. Extender EF 1.4X III incorporates phenomenal optical performance with minimal chromatic aberration and is a perfect complement to many of 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 and flare and even has a new Fluorine coating that keeps soiling, smears and fingerprints to a minimum. An integral part of many professional systems, Extender EF 1.4X III maintains high standards not only optically, but also in terms of rugged, dustproof and water resistant construction. This lens is only compatible with fixed focal length L-series lenses 135mm and over, as well as the EF 70-200/2.8L, EF 70-200/2.8L IS, EF 70-200/4L, and EF 100-400/4.5-5.6L
From the Manufacturer
Extending a lens's focal length by a factor of 1.4x, the Extender EF 1.4X III incorporates phenomenal optical performance with minimal chromatic aberration and is a perfect complement to many of 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 and flare and even has a new Fluorine coating that keeps soiling, smears and fingerprints to a minimum. An integral part of many professional systems, Extender EF 1.4X III maintains high standards not only optically, but also in terms of rugged, dustproof and water resistant construction.
- Focal Length & Maximum Aperture Magnification: 1.4x
- Lens Construction 7 elements in 3 groups
- Max. Diameter x Length, Wight 2.8 x 1.1 in, 7.9 oz / 72.0 x 27.2mm, 225g
Legal DisclaimerSERIAL #0460001310 FULL 14 DAY SATISFACTION GUARANTEE AND A 90 DAY PARTS AND LABOR WARRANTY.
Top customer reviews
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Sharpness wise, the 1.4x III is better. I compared carefully doing side by side test shots... Tripod, mirror lockup, live-view focus, etc... The 1.4x III always had finer detail and more contrast. It was actually quite noticeable, although not as much in real-world shooting. AF performance is the same (with this lens), but I do like the build quality better. More mounting screws, better switch to release the lens, etc...
I think it was worth the upgrade after seeing the additional resolution it offers. I am very happy with it.
When used with a 70-200 f4L IS, it gives me an equivalent: 98-280mm and f5.6 - f45 aperture.
When used with the 70-200 F4L IS and an EOS 7D you get approximately: 157-448mm and same aperture.
I'll try to post some picture examples above for the product description because "they" won't let us put links here. :-(
PROS: Extends the length of professional quality Canon L Lenses with little or no noticable degredation in image quality.
COS: Only works with certain Canon and 3rd party lenses. Some of the 3rd party teleconverters such as Sigma and Tamron will work with other lenses that this TC will not because of the protruding element but I just can't beleive they are as good of quality. If you are ONLY using this with the compatible Canon lenses, then get this one definitely.
YOU MUST CHECK THE COMPATABILITY CHART BEFORE PURCHASING THIS SO YOU ARE NOT WASTING YOUR TIME. As of 4/29/13, this is what Canon's website states: Note: This lens is only compatible with fixed focal length L-series lenses 135mm and over, as well as the EF 70-200/2.8L, EF 70-200/2.8L IS, EF 70-200/4L, and EF 100-400/4.5-5.6L.
This time around, paired with a new ef 100-400mm II, really glad I bought again. Getting very sharp images with bokeh just as good as when not used. Using the combo for birds in good light.
Note that I did get one bad copy before this one. Surprised, but even Canon isn't perfect. So, two out of three copies are great.
I am using this extender with my EF 70-200mm f4 L USM lens. The image is very clear. I notice no difference in the response of auto focus. Also, the closest distance that I am able to focus has not changed. Although the focal length is increased only to 280mm the increased magnification brings the subject closer than my EF 70-300mm f 4-5.6 IS USM lens.
1. All three extenders had no problem with auto-focus in my system without any obvious difference. However, my primary objective was to compare image quality. I did not perform any test for auto-focus under difficult conditions.
2. At all apertures (f/8, f/11 & f/16), 1.4x ii was only marginally better than 1.4x at one of the extreme corners. There will not be any difference in real world images. If you are thinking of buying a used one, I wouldn't recommend paying significantly more for ver ii.
3. I also performed one interesting test to investigate the utility of even having an extender in the first place with a super sharp lens like 100-400mm ii l. I cropped an original image by the 1.4x factor with Photoshop and then upsampled the cropped image to the original 42MP image. I was shocked to see that the upsampled image was virtually indistinguishable from the images with the extender. Sure, in extreme corners you may find some tiny differences in detail (if you look really hard!). But keep in mind that with the extender, you are adding size/weight, losing one stop of light apart from the inconvenience of putting it on and off as needed. For me, I wouldn't bother to use ver. i or ii in my system.
4. With ver. iii, I could easily see the added sharpness at extreme corners compared to the earlier versions. The center looks pretty similar for all 3 versions. Needless to mention that the upsampled image was inferior this time. Again, the difference is not huge but noticeable. If you need the extra reach, my recommendation will be to buy it (if you can afford it).
5. I plan to do a comparison with Kenko Teleplus Pro 1.4x DGX. I will update the review once the comparison is done.
6. I am not posting any images since the comparison is only meaningful at full resolution.