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 CANON 5D MK3, EF 24-70mm 2.8 L, EF 70-200mm 2.8 IS L II, EX580 II. I was doing some AF Micro-Adjusting yesterday and we compared the resolution between these 2 and it is noticeably better. One I took things up to about f10, or f11 the new one was really not a lot, if any sharper but the ability to shoot at a wider aperture and still get good results is greatly appreciated. I seldom use them, so upgrading to double the price is not for me. Will be coupled with EF 300mm f/4 L IS and a 7D Mark II -- maybe sometimes with an EF 70-200 f/4L IS and same body. If you buy something through one of these links, I might make a small commission. 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 The Image Stabilizer function cannot be used with the cameras *2 listed below. I wrote about the MII 2x extender here before, so you might want to take a quick look at that for a couple of samples as well. The only difference I know of between the first and 2nd Canon 1.4x TC is weather sealing, no optical difference. Results with the Extender 2x III are overall slightly sharper than the Extender 2x II with a difference being most noticeable in the mid-frame and corner areas. Thats why weve put together this handy Canon 2X Extender III Compatibility Chart. If youre looking for an easy way to get closer to your subject matter without spending a lot of money on a new lens, then the Canon Extender EF 1 4X III could be a great option for you8). ABOVE: Captured with EOS 7D Mark II, EF 300mm f2.8L IS lens with Kenko Teleplus HD DGX 2x teleconverter at 600mm. The very long focal length lenses are considerably more expensive than extenders. Id confidently say that my older MKII would not be as sharp as this at f5.6. similar to Canon L Lenses in construction quality. There is only a very small improvement over the MKII versions and its only noticeable in certain situations. Canon EF 70-200mm f/2.8L IS II USM Lens IMG4.src = 'https://media.the-digital-picture.com/Images/Other/Canon-Extender-EF-III/No-Extender-100.jpg' Caution Do not attach two or more Extenders on the same camera. I could not see an appreciable difference in the AF speed and accuracy at all when used with current lenses. Not an expert but I asked the same question a couple of years ago.the II is well worth buying over the Ihandled AF better etc. At best, using a 2.0x extender with older lens designs will result in having only one available AF point. is reduced/narrowed by a 2 stops allowing at most 1/4 as much light into the exposure. To the best of my knowledge the contrast AF in the R Series does not have this AF system downshift at all. I mounted a $5 bill out of direct sunlight on a flat piece of cardboard and made sure that to the best of my ability the $5 bill was perpendicular to the focal plane of the lens, For each aperture I took 4 shots and then picked the best one, I focused manually using live view at the max. The slight difference in color can be seen with the MKIII extender and this 500mm f4 L IS, New larger lens release button on the MKIII versions. We hope you find this chart helpful! Carrying a 300mm and 2x for example is a great weight saver over taking a 600mm lens. I would however use an extender if the sun is off at 90 degrees to my subject or more. Two of the most popular are Capture One and Lightroom. The mounted extender also shifts the lens weight forward slightly for a potential change of balance. Canon EF 600mm f/4L IS II USM Lens. Note though that this is some beautiful light I am shooting in! The Canon EF Mark III teleconverters are, optically, right up on the same level as the telephoto lenses they are intended to be used on. The Extender 2x III has Canons Super Spectra coating for reduced ghosting and flare. Canon extender Mark III vs Mark II. The 2X TC II never worked at all well for me so I sold it years ago. That said, the MkIII also has significant improvements over the MkII where AF is concerned.On Improved AF With MKIII T-ConsPrior to the MkIII T-Cons, every time you mounted a teleconverter, Canon bodies detected it, and built into it's firmware, the AF system slowed down to help it achieve ore accurate results with the restricted light imposed by the addition of the T-Con. This Canon Extender 1.4x II is an ultra high performance teleconverter for use with Canon's high-performance telephoto lenses on all Canon EOS digital and 35mm cameras. I know it's not an answer to your question, but I'd get a 1.4X III extender instead. The only advantage would be in the weather sealing arena. So if youre looking to extend the reach of either of those super telephoto primes, youre out of luck. Canon 1dMK4 , iso1250 , f11, 1/1000 , 420mm. counter the pincushion distortion to a small extent. The huge focal length increase of course comes with some penalties, including a modest financial cost, some size and weight addition and The Canon EF 2x III Extender does not go with me nearly as frequently, but I occasionally take it along too. The 300mm f2.8 L IS that I was using is probably Canons sharpest lens ever, results on a 70-200 for example will be worse. The EF 70-300 mm f/4-5.6L IS USM isn't even designed to be able to use any tele converter. Take from that what you will, but to me is says Canon are very proud of their performance. Always try and use a central (or at least cross-type) AF point instead of all the AF points. Using an extender also reduces the amount of light coming into the camera by one f-stop. two at 400mm and two at 300mm, with my new Canon 100-400mm mark ii lens and there was virtually ZERO difference between the shots with vs . Sigma 135 - 400 now, this may have had something to do with performance and IQ of 1dmk4 compared to my 40d but the difference is undeniable. Bogen/Manfrotto 3021 w/3265 ball-mount, http://www.usa.canon.com tArticleAct&articleID=266, http://www.usa.canon.com ArticleAct&articleID=3602. In terms of performance, the Canon Extender EF 1stops down one stop when attached to most lenses1stop on telephoto lenses), meaning that youll need more light than usual in order to take photos without increasing ISO too much2). -The maximum effective aperture with the extender attached The huge focal length increase of course comes with some penalties, including a modest financial cost, some size and weight addition and more impacting, a decrease in image quality and maximum aperture. The zoom and focus rings are of course shifted away from the camera body the same amount as the lens. Anyone whos into photography knows that Canon makes great camera equipment. 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. I find the AF slows significantly using the 2x on the 70-200II in less than bright conditions. EF 400mff /2..8 LUSMandIIa&b -EF28~105 mmf /35~ 4 .5 ~ 5 . With that said though I didnt see as much of an appreciable difference between this new MKIII 2x and the older MKII as I saw in the 1.4x versions. What follows here is some commentary and observations on this experience. Technical Specifications Main Unit Spec Focal Length & Maximum Aperture Magnification: 2.0x Lens Construction 9 elements in 5 groups Max. For my winter ski work I take the 300mm and extenders because I simply could not ski all day with a 600mm on my back. Going all the way back to the version 1 T-Cons, the 1.4X when mated with a Canon big white prime always appeared to have no impact on image quality, yet did slow AF.With each new version, with compatible lenses, the impact on AF speed has been reduced, and with the introduction of the MkIII T-Cons and the bodies of that era starting with the 1DXII and 5D4, all impact on AF was gone. Brightest Lumen is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising & linking to Amazon properties. These lenses are used between any compatible EF type lens and any of the Canon EOS line of cameras. Canon EF 70-200mm f/4.0L IS USM Lens I have a 1dxii and a 400mm 5.6L. Thanks again for the speedy response. The slight difference in color can be seen with the MKIII extender and this 500mm f4 L IS New larger lens release button on the MKIII versions MKIII on the left and MKII on the right. Great link, thanks! But what lenses are compatible with the Extender II? Canon EF 100-400mm f/4.5-5.6L IS USM Lens announced the introduction of new MKIII extenders, this picture of the new hard case for the 400mm. and the lens it is being inserted into if your alignment is off when mounting the extender to a compatible lens. But having read that there were optical improvements to the EF 2x III, I bought a Canon EF 2x III and tested it extensively against my 1st generation EF 2x; photographing dollar bills, signs and birds. Dan is an editorial, commercial and fine art photographer based in the Canadian Yukon. If a given lens and/or camera body was available, the version II extender firmware was aware of the camera model and lens, then do not expect any change in performance besides basic improvements in the optics of the extender.Extenders come in two basic types, 1.4x and 2.0x, which each having a 1-stop and 2-stop impact on the effective aperture. Note that Canon does not recommend stacking extenders. The difference between the II and III is quite small as other's have pointed out and you'll be saving a fair amount of money especially if you pickup one a used one. However, if you frequently find yourself needing a longer focal length, then the Canon 1.4 extender could be a worthwhile investment. CANON EXTENDER EF 2X II - Free . While I could see a minor improvement in sharpness and barely perceptibly less vignetting, I decided my $500 was better spent toward a new lens or new body. In fact when the 1.4x II was released, it was said that weather sealing was added, superior optical coatings, but the lens assembly was unchanged. IMG8.src = 'https://media.the-digital-picture.com/Images/Other/Canon-Extender-EF-III/No-Extender-20x.jpg' Thats all it is, a bit of fun. In order to maintain backward firmware compatibility, a performance ceiling must be established. This is something I'm considering to pair with a future R5 or R6 and my current Canon 100-400mm II, if that makes a difference. The Canon 1.4 Extender III is a great lens adapter for anyone, regardless of what brand of camera they use. (I owned the 400 and sold it quickly when I purchased the 500.). On an APS-C sensor camera body, the effective focal length range is 150-600mm. Photojournalism, law enforcement and many other types of photography can also make good use of them. katherina. I've tried to do some research on this before posting, and the consensus of what I can see online is that:- For 1.4x the difference in IQ between the II and III is minimal- For the 2x the difference in IQ between the II and III is enough that it's worth getting the III over the II.Can anyone with experience with these extenders weigh in? 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. Canon extenders simply do not fit behind the rear lens element on Canon's non-extender-compatible lenses. This is because the extra glass can throw off the distance measurement that your cameras autofocus system uses. Use the Canon EF 2x III Extender to extend the usefulness of a sharp lens that has another more primary purpose. The image below was captured with a Canon EOS 5D Mark III + EF 2X III + Sigma 120-300mm f/2.8 DG OS HSM Sport. 6lll&USMandIV -EFOO~ 200 mmf /4 .. 5 LUSMandlll&IV -EFS 10 ~ 22 mmf / 3 . Today I was using my Canon 1D MkIV with the EF 500mm L IS and the 1.4 Extender. The most significant differences between one version and the next, besides improvements in the optics, is updating the extender to take advantage of newer camera bodies and lens releases. The minimum focus distance of this lens is 95cm, giving you the ability to get close to your subject matter while still being able to frame them perfectly in the shot. The new mark iii 1.4x teleconverter is head and shoulders above the previous versions. Maybe someone who upgraded I to II can handle that part of the question. Canon 1dmk4 , iso800, f11 , 1/2000 , 600mm (300mm f2.8 L IS + 2x MKII extender). Looks like the original 1.4 is not a bad choice, for the right price. - Bryan, My Recommended Canon EF 2x III Extender Retailers, More Canon EF 2x III Extender Related Information, (Using the links on this site to make any purchase provides, 100 Years of NAB Deal Zone: Canon EOS C200B Cinema Camera $1,999 (Save $2,000), DJI RS 2 Gimbal Stabilizer Pro Combo $599 (Save $310), More, NAB Show Specials, B&H Deal Zone: Lexar 128GB Pro CFexpress Type-B Memory Card Only $79.99 (Save $70.00), Manfrotto, More, Used Canon EOS R7 at B&H (<1,000 Shutter Actuations), Used RF 70-200mm F4 L Lens, Canon EOS C70 Firmware Update Version 1.0.6.1 Released, Just Posted: Sigma 23mm F1.4 DC DN Contemporary Lens Review, Coming Soon: Canon USA's Cadabra Curated Photography Marketplace, Just Posted: Sigma 50mm F2 DG DN Contemporary Lens Review, Sony Announces New SDK Version, Adding Remote Shooting and Camera Integration Features, Lens Specifications and Measurements Tool, Canon EF 100-400mm f/4.5-5.6L IS USM Lens, Canon TS-E 24mm f/3.5L II Tilt-Shift Lens, Canon EF 2x III Extender USA Press Release, Canon EF 14mm f/2.8L II USM Lens Review. Particularly in my winter sports work, contrast of the snow is important to maintain. Thread started 08 Mar 2011 (Tuesday) 08:44, Gear list plus: EF 1.4X II . Canon EF 300mm f/2.8L IS USM Lens Canon EF 600mm f/4 III with Canon extender 1,4 III? In fact, many lenses wont autofocus at all when an Extender is attached- meaning youll have to focus manually every time. -EF 100-300mm f/5..6L USM ExtenderEF 1.4x II: Entdecke Canon Extender EF 1.4X III Telekonverter - fast neuwertig - #104 in groer Auswahl Vergleichen Angebote und Preise Online kaufen bei eBay Kostenlose Lieferung fr viele Artikel! If you want a 2x TC, then the III may be the better choice. It increases the focal length of the lens by 1.4x, allowing you to capture subjects that are further away than before. 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. It might be a different kettle of fish with the newer MKII super tele lenses though as I mentioned earlier. But what if youre not sure if its compatible with your camera? What types of photography are extenders used for? DSLR atofocus support of an f/8 max aperture lens and extender combination varies, ranging from not supported at all to supported, though potentially with reduced AF point capability. When Extender EF 1.4X III is used, AF drive speed is reduced by 50%. The obverse is not true. Anyone have educated and/or experiential information relative to how much better the MarkIII EF 2X extender is than the MarkII? The extenders do not have provisions to update their firmware to accommodate new lenses, AFAIK. Well, never fear! However, according to the new item: Notice the slight color change of the two Series III Extenders pictured in the center above. Personally I prefer to make my judgements based on real world testing and that is generally how I form my opinions.