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. For example, a 2x extender (also commonly referred to as a teleconverter) makes a The first task I undertook upon purchasing (retail) my 2x III was to add the with-extender-III ISO 12233 resolution chart results The following list of discontinued lenses fitting these parameters are compatible, but may require camera microfocus calibration for accurate focusing (note that not all DSLR cameras support microfocus calibration): Canon EF 200mm f/1.8 L USM Lens but as their image quality results shown on their reviews show, they can function with extenders. Canon EF 70-200mm f/2.8L IS II USM Lens Note that barrel distortion causes the center portion of the image (top image in the ISO 12233 tool) to be slightly enlarged, At review time, the price differential between the still-available version II extenders and the version IIIs is rather high. A great lens will typically produce the best image quality when used with the 2x and I did not notice any differences in this regard. Shop online for Canon Extender EF 2x III at Canon UK Store. The Canon EF 2x III Extender increases the physical length of any combination it is used to all of the current extender-compatible lenses. Hi, I have just purchased a Canon EF 2X III teleconverter, it's between a Canon 70D and a Canon EF 100-400mm IS-L USM lens. 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. Two additional lenses in the same number of groups (9/5 vs. 7/5) are found in the III (and likely contribute to the slightly increased weight). (and this is of course only true when you do not want the entire native lens' FOV). Canon EF 300mm f/2.8L USM Lens (non-IS) Each row below the image represents either the bare lens or the lens with the specified extender mounted behind it. But, Canon does not recommend using ETs at all due to reduced autofocus accuracy. Canon EF 400mm f/5.6L USM Lens In this review, I do a review of the Canon Extender 2x III teleconverter. If you have read the Canon 1.4x EF Extender III Review, you will find the Canon EF 2x III Extender review familiar. These results show what a very sharp lens, stopped down to f/11 and used with good lighting can produce with extenders. Info. ISO 12233 Resolution Chart Tool. 200 millimeters. It increases the focal length of a lens by a factor of 2x while still delivering superb image quality. Shown below are 100% resolution crops taken from the focal length example shown earlier in the Canon EF 2x III Extender review. Canon EF 180mm f/3.5L USM Macro Lens It compensates, automatically, for the reduced distance lens elements in the lensâs focusing group(s) need to move to refocus on a subject, with either EF Extender in place. 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. Sports and wildlife are two of the most common photography pursuits utilizing extenders. IMG12 = new Image(600, 404) Or, would you feel more comfortable buying after having a hands-on trial period? 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 lens aperture still opens to the same physical diameter, but the ratio of the aperture opening to the focal length is reduced â by 2 stops. My extender purchase advice is similar to the advice I gave in the Canon 1.4x EF Extender III Review. CNN_2x III Extender Lens_CanonDSLR Special Features 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 review will sound very similar to the Canon 1.4x Extender Review, but the 2x function is basically the same.. These same lenses have results from the version II extenders and provide a lens-by-lens basis for comparisons between the two extender versions. Canon EF 400mm f/2.8L IS II USM Lens, The Canon EF Extender 2x III is designed to provide extended range with Canon L-series telephoto lenses. Canon EF 180mm f/3.5L USM Macro Lens becomes a 360mm f/7.1 USM Macro Lens. IMG3.src = 'https://media.the-digital-picture.com/Images/Other/Canon-Extender-EF-III/2x-Extender.jpg' IMG10.src = 'https://media.the-digital-picture.com/Images/Other/Canon-Extender-EF-III/Lens-Only.jpg' And I'm sure that not everyone can justify the cost difference to go with the 2x III over the 2x II. IMG5.src = 'https://media.the-digital-picture.com/Images/Other/Canon-Extender-EF-III/14x-Extender-100.jpg' The teleconverters (TC) will multiply the focal length of any EF lens used with them by either 1.4x or 2x. 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. The 2x III grew 2.6 oz (75g) heavier than, and is .21" (5.3mm) shorter than, the Due to having incompatible signal relay systems, film SLRs are not compatible with the Series III Extenders (the EOS-1V is the only exception). For example, when used on the Canon EF 200mm f2.8 lens it will give the same angle of view as a 400mm f/5.6 lens. so the MM (Maximum Magnification) of the lens is also multiplied by 2x. These images were processed using the Standard Picture Style with a sharpness setting of "2" (very low). DSLR cameras will continue to calculate auto exposures properly when used with Canon Extenders. creates a very dark viewfinder that makes manual focusing difficult. About the Canon Extender EF 2x II View the manual for the Canon Extender EF 2x II here, for free. The Extender 2x II did not have an issue with CA and neither does the III. The Canon EF 2x III Extender mounts between your Canon EOS Digital SLR and a compatible lens Canon EF 135mm f/2.0L USM Lens (again, use the mouseover feature) usually improves the image quality of both the bare lens and the extended lens combination. Do you need/want the Canon EF 2x III Extender for only a short period of time? Said another way, you generally will get better results from a 400mm lens than with a 200mm lens plus the Canon EF 2x III Extender, I'm much happier with 2-stops-down 2x III results than wide open results. It multiplies your focal length by 2x and makes your effective aperture two stops less. These lenses are used between any compatible EF type lens and any of the Canon EOS line of cameras. Canon EF 200mm f/2.8L II USM Lens The Canon extenders have a protective rubber ring around the front element to protect both the extender itself Fluorine coating on front and rear elements You expect to get what you ordered, and you want to pay a low price for it. similar to Canon L Lenses in construction quality. Then add an extender to give you an option to (less frequently) use longer focal lengths. IMG6 = new Image(604, 404) Photojournalism, law enforcement and many other types of photography can also make good use of them. But, saving money is one of the reasons to buy an extender instead of a lens with a longer native focal length. and the lens it is being inserted into if your alignment is off when mounting the extender to a compatible lens. 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. Canon EF 400mm f/4.0 DO IS USM Lens What types of photography are extenders used for? The image quality penalty of the 2x is quite noticeable â at least until a one, or better, 2 stop narrower than wide open aperture is selected. Image quality from stacked extenders will not be great. 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. The front and rear elements have Canon's fluorine anti-smear coating â making them very easy to clean. Lens Mount Compatibility. The above images (of a Christmas Cactus flower) were taken from the same tripod-mounted position (using the tripod ring) with a Add the Canon EF 2x III Extender to the setup for a 360mm 2:1 (2x) Macro lens. Here is a link to the list of Canon lenses compatible with Canon extenders. Since many Canon EOS camera bodies need a max aperture of f/5.6 or wider to autofocus, losing 2 stops of max aperture pushes f/4 and narrower lenses past their ability to autofocus. Canon EF Extenders / Teleconverters The range of Canon 1.4x and 2x lens extenders. The mounted extender also shifts the lens weight forward slightly for a potential change of balance. In the Canon EOS system, this is done by deliberately reducing drive speed when an extender is detected. Canon EF 2x Extender II it replaces. IMG11 = new Image(600, 404) Attempting to mount a Canon extender on these same non-compatible lenses can damage the lens due to contact being made with the rear lens element. IMG1.src = 'https://media.the-digital-picture.com/Images/Other/Canon-Extender-EF-III/No-Extender.jpg' Ultra-Popular Sigma 18-35mm f/1.8 DC HSM Art Lens in the Adorama Deals of the Day â Save $220.00! So, pick your lens' maximum aperture opening from the following list and understand that it will shift two values to the right 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. If you are tracking birds in flight, fast sports action at relatively short distances or shooting low contrast subjects in low light, expect a noticeable AF performance decrease. Improvements in the Series III extenders promise to perform especially well on these specific lenses. Canon EF 300mm f/2.8L IS USM Lens The difference in framing (angle of view) is quite noticeable between the three examples shown. 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. IMG4 = new Image(604, 404) The 2x II added pincushion distortion to the lens it was used with whereas the 2x version III adds slight barrel distortion. Some of the extender-compatible lenses start with an f/5.6 max aperture and, at review time, no Canon DSLR camera can autofocus with the f/11 max aperture 2x combinations these lenses create. Canon Extender EF 2x III Deals. IMG10 = new Image(600, 404) 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 All current extender-compatible lenses have ISO 12233 chart results from the with-extender combinations available (select the longest with-extender focal length value). 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