est clairement du côté de l'Extender 1,4x car l'image fournie est La ré-échantillonner une image... sous réserve que le sujet et la Not that I am not already very proud of the photos I have been taking, I am certainly not blown away the way I am when I can see every little feather on the beautiful egret, heron and eagles not to mention the other wildlife out there. I have the 90D and the 100-400 IS ii and when I add the 2x iii extender it will not autofocus, but will if in live mode. I just think the performance degradation you are going to run into is not worth the hassle or money. You can attempt to work around it by taping off the pins that report the TC to the body and hope for the best; but it's going to be ridiculously slow to focus even then. As for the difference with the 100-400 II… according to Chuck Westfall, a canon spokesperson, there will be little difference. Multicoated. Canon DSLR bodies prevent poor auto-focus performance by disabling it completely when the lens reports maximum aperture at chosen focal length smaller than f/5.6. Thanks for the great, detailed information on the Canon 100-400ii + 7D Markii + 1.4x extender. I would not keep it on all the time, but occasionally you will find it useful, especially with relatively static subjects such as big cats lounging around. For now, I’m providing this information for Canon lenses because the majority of my lens and camera reviews in the past have been about Canon gear. I have 80D and 100-400 version 1, i’m thinking to buy the extender 1.4x ii.need your suggest for that before i buy the 1.4x ii. If you use the Canon brand 2x converters, you will loose autofocus. I know it is not very good focal length for bird / wild lift photography. Internal Construction, Canon Extender 2x II. thanks. Also, I would like a Canon lens to use indoors at ballroom competitions where I could video the dancers. pas un convertisseur 1,4x ou un doubleur sur n'importe quelle So, a 300mm lens beomes a 420mm with a 1.4x TC and a 600mm lens with a 2x TC. According to Chuck Westfall (Canon USA): "As with previous EF Extenders, usage of Series III EF Extenders lowers AF drive speed to improve AF performance. It’s good, very good in fact, as long as you take the time to understand and adapt the rather complex AF settings on the 5D Mark IV. What they hardly ever mention is that it only works with these two lenses, and if you don’t have either of those, you just get one central AF point. The only time I have some trouble is when a subject suddenly rapidly accelerates towards the camera. Sorry . With that combo the 7D2 can only use the center point for AF along with up to 4 points around it while the 80D can use 9 points in the center and 9 points to each side.”, “With the 100-400 Mk II + 1.4x extender, you can use 27 AF points on the 80D, but only the center AF point on the 7D Mark II ”. In stock. Sent from and sold by Camera Centre UK. I sold my 70-300L and will surely buy the new 100-400 but not sure about the 1.4X and 2X extender. The Mk1 version of that lens doesn’t work all that well with an extender. That said I am about to upgrade the camera to an 80D and to also get a 1.4 extender mkiii. En usable on Canon do not turn AF off. The Canon 300mm f/4 is a sharp lens. So now instead of the RP/7D combo as my carry-around duo, I will have the RP/M5 combo, which actually will be lighter overall, and means I only have to carry one kind of battery. I bought the Canon 2x extender for my Canon 550 with the EF 70-2001.4 L zoom and am disappointed that the autofocus does not work under any conditions. OWC Envoy Pro Elektron Review – The Best Tiny, Rugged SSD? Claire Whitaker. utiliser un convertisseur ou un doubleur de focale ? obtenir un resultat "correct" en montant ce genre d'accessoire I will be the first to admit I don’t understand everything about cameras but photography is one of the great loves of my life. I’m thinking about changing 70D to 90D. Dan- I’m enjoying reading about all the possible combinations of lenses and extenders but I think I have one that I have not seen. This is just the name for a specific group of AF points. What lens would you recommend for that? fois que l'on a bien compris que l'usage des convertisseurs et Hello, Basically, I dont have money for anything above the 70-200, and I really want to start some wildlife photography. de qualité plutôt que de penser utiliser un convertisseur The subject of autofocus (AF) at an f/8 maximum aperture is something that often comes up in my writings about cameras, lenses and telephoto lens techniques for subjects like sport and wildlife. MkII versions updated electronics, optical design and coatings to minimize ghosting, flare and chromatic aberration. Thanks for the valuable compatibility details, very useful indeed. recommandations As we know, when using an extender we typically lose 1 stop of light for a 1.4X extender or 2 stops of light through the lens for a 2X extender. I thought I would double check with you to make sure this is true. So the extenders are the way to go. I have a Canon EOS 7D and a Canon EF 100-400mm f/4.5-5.6L IS II USM lens which I use for bird photography. This sort of non-recommended functionality is pretty much impossible to comment on because there are too many permutations. très souvent : Vaut-il Check that firmware number in the menu system! From left to right: Canon 7D, 2x extender version III, 2x extender version II, and 70-200 lens. As we know, when using an extender we typically lose 1 stop of light for a 1.4X extender or 2 stops of light through the lens for a 2X extender. 3mm by 2mm piece with an exacto knife and stick it to the lens contacts in the back. HELP ME..PLEASE! • The EXTENDER RF 1.4x and EXTENDER RF 2x – two high-performance and durable extenders with redesigned optics, created to expand the capabilities of the today launched RF 100-500mm F4.5-7.1L IS USM, RF 600mm F11 IS STM and RF 800mm F11 IS STM. avec les CANON 5D & 40D (paramètrage "standard") Le multiplicateur EF 1,4x III a été spécifiquement conçu pour être associé aux super téléobjectifs IS de la série L et multiplier ainsi leur focale par 1,4x. avec les optiques afin de voir si l'ajout d'un Extender (convertisseur also, would I be able to use auto focus still? Test shots show that straight up the canon 100-400mm is the boss on the "lower end" professional lens. To clarify, I will be taking some wild life shots and some landscape and some of my kids on the beach or doing sports. un monopode ou un trépied sont rapidement indispensables. This ability was added in a firmware update in April 2013, when the firmware was bumped up to V 1.2.1. Canon Extender EF 2x III: 12/2010: 5: 9: 72.0x 52.7: 325g: MkII versions improved lens coatings, optical design and added environmental sealing. I like the idea that the 7D II has potentially double the shutter like at 200K, more rugged. So I guess the extender won’t work with the 7D, but all was not lost! Pour Thanks!!!!! 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. I had … (An old trick given to me by an old timer at Canon headquarters). My thoughts on the Canon 1.4x iii Extender using the Canon 7Dii and the Canon 100-400mm f/4.5-5.6 ii. - The manual (which you can download) contains the list of compatible lenses. Added 'Fluorine coating' to aid cleaning. Extender EF 2x III Camera Accessories pdf manual download. Greetings. et sont des recadrages à 100% d'images brutes. Joined: Feb 1, 2009 Messages: 1 Likes Received: 0. uniquement aux versions haut de gamme genre "série You can forget about using it to track fast moving subjects… And I also doubt that the image quality will be that good. Question: What is the effect of a polarizing filter on autofocus ? l'optique de départ soit de très haute qualité pour supporter Please advise. Because of this, you should try to use a tripod whenever possible and when you do, attach the tripod mount to the lens and not the camera body to prevent damaging the lens contacts. Both extenders allow professionals to push focal length capabilities of compatible lenses, while maintaining the image … Expand your versatility with Canon's Extender RF2x. il y a moyen d'obtenir un résultat assez correct puisqu'il vaut Compatibility Matters. The distance would be about 50-60 feet. Peak Design’s Latest Kickstarter Ends Tomorrow, Topaz Labs Holiday Sale – 45% Off Everything. The extender adds one more stop of light so that would make it f/9 so it won’t work. What is that then? I have an M5 with the EF-M adapter, and autofocus works fine on that camera, plus it’s less bulky than the 7D-extender-70/200 combo. Both cameras had no problems focusing anywhere I put the focus point, and the object tracking worked flawlessly as well. The Canon Extender EF lenses are a group of teleconverter lenses made by Canon.These lenses are used between any compatible EF type lens and any of the Canon EOS line of cameras. What you are using the 1.4x III on the 100-400 is II you would recommend the Canon,... To mask painting on walls ) and cut an approx let me what! Great information increase, you ’ ll also create a similar resource to other... Want the best Super Telephoto lenses Review – the best Super Telephoto lenses by 2x a..., smears and fingerprints trick given to me by an old timer at Canon headquarters ) quite.... 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