These are the facts, now you have to figure out how to get around these problems. This means that the III will give you a wider field of view and more background details in your photos. Particularly in my winter sports work, contrast of the snow is important to maintain. The Canon 1.4 Extender III is a great lens adapter for anyone, regardless of what brand of camera they use. The Canon EF 2x III Extender does not go with me nearly as frequently, but I occasionally take it along too. These same lenses have results from the version II extenders and provide a lens-by-lens basis for comparisons between the two extender versions. It compensates, automatically, for the reduced distance lens elements in the lenss focusing group(s) need to move to refocus on a subject, with either EF Extender in place. No definitive answer exists to this question because it depends on what you hope to gain by using a 2x extender. 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. The Canon 180 L Macro is a lens that performs very well with extenders. CANON 5D MK3, EF 24-70mm 2.8 L, EF 70-200mm 2.8 IS L II, EX580 II. Keep in mind that you can probably buy the 1.4 and 2X II for the price of either III . Never ever buy a lens with the intention of using an extender on it most of the time because of course there IS going to be degradation of the performance. Heres a breakdown of the two options to help you make a decision. The new mark iii 1.4x teleconverter is head and shoulders above the previous versions. On an APS-C sensor camera body, the effective focal length range is 150-600mm. Dan is an editorial, commercial and fine art photographer based in the Canadian Yukon. Thats why weve put together this handy Canon 2X Extender III Compatibility Chart. IMG10.src = 'https://media.the-digital-picture.com/Images/Other/Canon-Extender-EF-III/Lens-Only.jpg' 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. When it comes to finding the right camera gear, compatibility is key. A 2x extender will decrease your maximum aperture by 2 stops. A microcomputer integrated into the Series III Extenders promises faster autofocusing and increased AF precision 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. } If youre a Canon user, then you know that the 1.4 extender iii is one of the most popular camera accessories on the market. The front and rear elements have Canon's fluorine anti-smear coating making them very easy to clean. And as stated he didn't say thats the lens he would be using the TC with. -EF 28-70mm f/2.8L USM Anywhere near the edges at all, the Mark III is noticeably sharper though. 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 1dmk4 , iso800, f11 , 1/2000 , 600mm (300mm f2.8 L IS + 2x MKII extender). Id confidently say that my older MKII would not be as sharp as this at f5.6. It is more money, but the overtime earned from last month needs a home and I guess it's like a lot of things, buy cheap, buy twice. The RF 2x actually performs pretty much identically to the two 1.4x TCs stacked (which yields the same final 2x magnification as the 2x TC). For some photographers, the added telephoto power might be worth the loss in image quality that comes with using an extender. Canon 7D-Series: The 1.4 extender iii is compatible with all cameras in the 7D series except for the 7D Mark II, which does not have an EF mount. Heres a quick compatibility chart to help you out. TT1/TT5 . Lets move on though and look at that MKIII 2x Extender. The lens mount pin and lens mount stopper pin are improved for higher endurance and, First, its important to understand what an extender does. The price difference between 1.4 x and 2 x isn't much, so weighing up the pro's and cons of 1.4 x vs 2 x and II vs III. The 2x III adds a small amount of barrel distortion to the lens it is being used with. I did some systematic test shots of a Coke can, 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 without the 1.4 - it was impressive! Each has its pros and cons, so it really comes down to what youre looking for in a lens. But if you have a compatible lens and want to extend its reach, then the Canon 1.4x Extender II is definitely worth considering! All extenders decrease the contrast of your image. I think if you are planing on printing over 5 X 7 go for the III . While some third party extenders *may* work properly with Canon's non-extender-compatible lenses, they probably will not report the reduction in aperture. How big are the improvements between the different versions of this extender? IMG8.src = 'https://media.the-digital-picture.com/Images/Other/Canon-Extender-EF-III/No-Extender-20x.jpg' Is one lens better than another?, Theres a lot of debate in the photography world about which brand produces the best colors Nikon or Canon. Yes if you appreciate better resolution. The lens is also at f5.6 so its only stopped down a tiny bit from its maximum of f4.o. http://www.dpreview.com/news/1008/10082611canonef14xiiief2xiii.asp, they have new optics and new processors for improved lens/camera communications. Well discuss how it works, what its made of, and how well it performs in real-world scenarios. Caution Do not attach two or more Extenders on the same camera. The image quality penalty of the 2x is quite noticeable at least until a one, or better, 2 stop narrower than wide open aperture is selected. Well, it really depends on what youre looking for. Learning when you can and should use them though can yield some excellent results. Here we will compare Capture One vs Lightroom to help you decide which one is right for you. KSM filters for all