70 millimeters. The Extender EF 2X III delivers optical performance on par with the finest Canon super telephoto lenses. I'm much happier with 2-stops-down 2x III results than wide open results. This Canon Extender 2x II is an ultra high performance teleconverter for use with Canon's high-performance telephoto lenses on all Canon EOS digital and 35mm cameras. IMG10.src = 'https://media.the-digital-picture.com/Images/Other/Canon-Extender-EF-III/Lens-Only.jpg' IMG6.src = 'https://media.the-digital-picture.com/Images/Other/Canon-Extender-EF-III/2x-Extender-100.jpg' The 2x III adds a small amount of barrel distortion to the lens it is being used with. A significant disadvantage brought by the use of a 2x extender (any of brand or model of them) is that your lens' max aperture setting Compatibility 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's a Good Day at B&H: Sigma 70-200mm f/2.8 OS Sports Lens – Save $400.00, SmallHD FOCUS Bolt 500 TX On-Camera Monitor – Save $800.00, More! Package - Canon - EOS 5D Mark IV DSLR Camera (Body Only) - Black and EF 70-200mm f/2.8L IS III USM Optical Telephoto Zoom Lens for DSLRs User rating, 4.9 out of 5 stars with 629 reviews. Canon - Extender EF 2x III Extender Lens - Multi. This may seem like a drawback, but in reality subject tracking performance remains quite high when Series III Extenders are used with IS II lenses. But, saving money is one of the reasons to buy an extender instead of a lens with a longer native focal length. Canon EF 200mm f/2.0L IS USM Lens If it is, the resulting 2x focal length is very impressive. Buy a lens with the native focal length you need for best results. Better optical quality is also expected. Here is an example of the focal length increase provided by the 1.4x and 2x extenders. The Canon Extender EF lenses are a group of teleconverter lenses made by Canon. - Bryan, My Recommended Canon EF 2x III Extender Retailers, More Canon EF 2x III Extender Related Information. EF 2x III Extender for DSLR cameras for double focal length from the Canon Hong Kong online store. Also impressive is the resulting image quality in these extender examples. Do you need/want the Canon EF 2x III Extender for only a short period of time? The length and weight of this combination means no hand held, tripod only. Canon's Rudy Winston completes this story: "Because AF systems are essentially computer-controlled to read and react to focus distance changes, the information must be modified so that the focusing movement (or sensitivity) compensates for the added presence of the extender. the values to the right show Photoshop CS5 up-rezzed (resized larger) images created from the native image. Additionally, please see the lens and/or camera body manual for full compatibility information with the Extender EF 2X III. The image quality of lenses varies from model to model; and therefore, the optical results of the various with-extender combinations also vary. The teleconverters (TC) will multiply the focal length of any EF lens used with them by either 1.4x or 2x. Canon EF 400mm f/5.6L USM Lens IMG6 = new Image(604, 404) I would also only consider the combination if the body I plan to use was released at least several months before the Sigma lens. Let's take a look at the Canon EF 2x III Extender mounted on a camera body. Sports and wildlife are two of the most common photography pursuits utilizing extenders. The Extender EF 2x III is compatible with most telephoto and telephoto zoom lenses within Canon’s flagship professional L-series range, extending the focal length while only reducing the effective aperture of the lens by two stop. Note that this extender reduces your maximum aperture by … Note that Canon does not recommend stacking extenders. The 2x II added pincushion distortion to the lens it was used with whereas the 2x version III adds slight barrel distortion. so the MM (Maximum Magnification) of the lens is also multiplied by 2x. } I did not notice any differences in this regard. function switchimage(imgDocID, imgObjName) { Maximum Aperture. When used with a compatible lens, they will multiply the focal length of the lens by a factor of either 1.4x or 2x, at the cost of decreasing the lens' aperture by 1 or 2 stops respectively. Use the ISO 12233 chart results from the lens you are interested in using the 2x with – and decide for yourself if the resulting image quality is acceptable to you. Note that "AF precision remains the same as the Series II Extenders when the Series III Extenders are used with earlier extender-compatible EF lenses." The Canon EF Extender 2x III is designed to provide extended range with Canon L-series telephoto lenses. While some third party extenders *may* work properly with Canon's non-extender-compatible lenses, they probably will not report the reduction in aperture. IMG8 = new Image(604, 404) Canon EF 500mm f/4.5 L USM Lens So, a 300mm lens beomes a 420mm with a 1.4x TC and a 600mm lens with a 2x TC. Canon EF 180mm f/3.5L USM Macro Lens Canon EF 70-200mm f/2.8L USM Lens Model: 4410B002 . IMG2.src = 'https://media.the-digital-picture.com/Images/Other/Canon-Extender-EF-III/14x-Extender.jpg' Buying an extender over a longer lens for financial reasons can also make sense. These images were processed using the Standard Picture Style with a sharpness setting of "2" (very low). Ultra-Popular Sigma 18-35mm f/1.8 DC HSM Art Lens in the Adorama Deals of the Day — Save $220.00! It makes your 70-200/2.8 into a 140-400mm f/5.6, or your 300mm f/2.8 into a 600mm f/5.6. This is the lone, but very significant, advantage provided by extenders. an extension tube installed between them makes the fit possible. when used with the Canon IS Supertelephoto Series II lenses mentioned above and (I expect) all future compatible lenses. (again, use the mouseover feature) usually improves the image quality of both the bare lens and the extended lens combination. Canon EF 1200mm f/5.6L USM Lens. Canon EF 200mm f/2.8L II USM Lens This item is no longer available in new condition. The very long focal length lenses are considerably more expensive than extenders. And I'm sure that not everyone can justify the cost difference to go with the 2x III over the 2x II. Enjoy focal length extension for super telephoto lenses Compatible with most telephoto and zoom lenses within Canon's flagship professional L-series, the Canon Extender EF 2x III is a great kit addition. Canon EF 70-200mm f/4.0L USM Lens //End comment tag.-->, Bringing you this site is my full-time job (typically 60-80 hours per week). SKU: 3479188 . What's in the Box 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. The first task I undertook upon purchasing (retail) my 2x III was to add the with-extender-III ISO 12233 resolution chart results Using extenders to save space when traveling or hiking can be a good decision. This is due to improvements in AF precision made possible by the new microcomputer in the extenders.". Of course, to get an extender at all is the first decision to make. A microcomputer integrated into the Series III Extenders promises faster autofocusing and increased AF precision List of lenses that are compatible with the EF 1.4x II and EF 2x II extenders. My personal opinion is that the 2x III's improvements are worth the difference in price, but we all value our images and money differently. Adorama Deals: Sigma 24-70mm F2.8 OS ART Lens – Only $879.00 (Save $420.00), Flashpoint XPLOR 400PRO, Slinger Electronic Dry Cabinet (85L), B&H has an OB (Like New with Fully Warranty) Sony FE 400mm f/2.8 GM OSS Lens in Stock for Only $10,797.95, Gone: Used (9+) Canon EF 600mm f/4L IS III USM Lens Available at B&H – Save Nearly $2,000.00, Last Chance: The B&H Mega Deal Zone Deal Ends Today – About 1,200 Outstanding Deals Available. Before you immediately conclude that this is a problem, understand that this reduction in drive speed now corresponds to the effective speed you would achieve with the same EF lens alone. EOS 1Ds Mark III EOS 20D EOS 1D Mark II EOS 1D Mark II N Home Articles Articles Detail. The III's new color matches Canon's latest white L lenses. 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. When Extender EF 2X III is used, AF drive speed is reduced by 75%. with by 2.08" (52.7mm) and increases the weight by 12 oz (325g). A Canon EF 300mm f/2.8L IS Lens becomes a 600mm f/5.6 IS lens. The lens mount release switch received a cosmetic upgrade, but functions the same. IMG3.src = 'https://media.the-digital-picture.com/Images/Other/Canon-Extender-EF-III/2x-Extender.jpg' List of lenses that are compatible with the EF 1.4x II and EF 2x II extenders.

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. more impacting, a decrease in image quality and maximum aperture. The high-performance Canon Extender EF1.4X III and Extender EF2X III increase the focal length of the attached EF lens by 1.4X and 2X respectively. Canon TS-E 24mm f/3.5L II Tilt-Shift Lens When Extender EF 1.4X III is used, AF drive speed is reduced by 50%. Canon Extender EF 2x III Deals. Add the Canon EF 2x III Extender to the setup for a 360mm 2:1 (2x) Macro lens. IMG11 = new Image(600, 404) Note that the only lenses with focal lengths below 135mm that are compatible are the 70-200mm L series variants and the 100-400mm L. All of the compatible prime lenses are also L series lenses. The Canon EF 2x III Extender significantly extends the reach of your sharp, compatible Canon lenses for a relatively low size, weight, and financial cost - Canon 2X Extender EF II ~$320 The Type III version of the lens Extender doesn't do much to enhance image quality over the Type II version: … Key Specs. Canon EF 400mm f/2.8L IS II USM Lens, Canon EOS 5D Mark II camera body. The Extender EF 2X III from Canon is designed for select Canon EF mount L-series telephoto lenses. These results show what a very sharp lens, stopped down to f/11 and used with good lighting can produce with extenders. The Extender 2x II did not have an issue with CA and neither does the III. Since many telephoto zoom lenses have pincushion distortion at their longest focal lengths, the added barrel distortion can IMG1.src = 'https://media.the-digital-picture.com/Images/Other/Canon-Extender-EF-III/No-Extender.jpg' plus a 2x results in a not-natively-available 1600mm f/11 IS USM (MF-Only) Lens. Note that barrel distortion causes the center portion of the image (top image in the ISO 12233 tool) to be slightly enlarged, additional lenses for light to pass through, reduced image quality should be expected. as you can see below, there are now 7 (instead of 4) screws holding the rear lens mount to the body. The Canon 180 L Macro is a lens that performs very well with extenders. Outstanding image quality at double the distance