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The following opinions have been automatically translated with Google Translate.
  | sent on 11 Febbraio 2024 Pros: A visible, albeit not important, increase in quality is gained compared to pp crop. Weight & Size Cons: AF on older optics loses some polish Opinion: Used with 6d Mark 2 and 5dsr with Canon 400 5.6 and 500 4.5. /. Shooting with optical viewfinder./ With the 400 speed and af accuracy lose very little on either body. On the 500 with 6d mark 2 if you want to refocus from a near object to a distant one you often have to go step by step approaching a little at a time, which makes it slow in naturalistic, if you don't have a precise composition to make. The situation changes a lot on 5dsr where paired with the 500 the af remains much smoother and more usable. Surprisingly, the 5dsr's dense sensor holds up very well to an extender. /. Live view shooting./ All combinations with the 1.4x III benefit from live view shooting in terms of speed and accuracy at the expense of all the advantages of time and precision that tracking a subject in the viewfinder can give. |
 | sent on 31 Dicembre 2023 Pros: No significant loss of focus speed; slight image quality decay; lightness; compactness. Cons: Nobody. Opinion: I've been using this extender for almost a year on a 100 400 ii and a 300 2.8 ii and it has positively surprised me with regard to maintaining excellent image quality and a good focusing speed. On my 100 400 ii I notice a slight drop in image that often makes me prefer the smooth use of the lens; While on my 300 2.8 II the sharpness remains nothing short of exceptional. With the extender the diaphragm of my 300 becomes f4 wide open which I prefer, always or almost, to close to 5.6 to get more sharpness. |
 | sent on 02 Dicembre 2022 Pros: Lightness, sharpness Cons: I haven't found any Opinion: A little gem to always have with you. Used in conjunction with the Canon EF 70-200 f / 4 is L series and especially for over 4 years with the Canon EF 100-400 is II L series, with the "old" SLR has always behaved very well, practically I have never noticed loss of sharpness. On the other hand, with an R6, always with the same lens, I could find a slight "fogging" of the image when mounted. I sold it together with the above optics opting for the native RF 100-500 that I intend to use without multipliers to the advantage of sharpness and greater aperture (f / 7.1 instead of f / 8) at the small cost of a very modest loss of mm (500 instead of 560). In summary, recommended on SLRs!!! |
  | sent on 02 Luglio 2022 Pros: When used with the right optics, camera and light conditions, it doubles the focal length without significant loss of optical quality and AF. Cons: Subject to the above, nothing. Opinion: I use it to "double" my EF 500 L f4 IS III. I find it great (read the pros and cons) for what it allows me to do when the distance becomes prohibitive for the lens. Together with the little brother 1.4x is fixed in the backpack that houses the equipment that I carry in the circuits. Not to be used, of course, in the presence of strong rises of hot air where the bad result would be attributed to the photographer and not to the combination lens + dupli...;-)) |
 | sent on 02 Luglio 2022 Pros: Construction Cons: Loss of sharpness such as to make it useless Opinion: Tested with 7D MK2 and 100-400 II Identical light conditions, shooting with and without multiplier Images without duplicator have always been slightly better (sharper) , despite the greater crop of photos without multiplier. So it is useless and therefore unusable. I don't understand the many enthusiastic comments. |
user218602
 | sent on 05 Maggio 2021 Pros: Quality of materials; Rendering of immagins up to its focal point; Tropicalized; Lightweight; Size; Autofocus speed Cons: It's no use... at least with my Canon 70-200mm F4 L IS USM Opinion: Well done, definitely worthy of being an L series, but beyond its focal point, it loses enormously details. When I tried to take two photos keeping the same settings of the machine, both at 200mm without multiplier, and at 280mm with multiplier, then making the magnifications until it reached the same size, the photo taken without multiplier was sharper than that taken with the multiplier. I don't know if it behaves the same on other targets, but on the Canon 70-200mm F4 L IS USM. I initially put it up for sale, but then in doubt that the problem arises with all the lenses, I preferred to return it to the store |
 | sent on 23 Gennaio 2020 Pros: All in the truest sense of the word I think in Canon they have overcome themselves. Cons: Maybe the cost a high hair but the quality you pay Opinion: I use it paired with the Canon 100-400 is ii and I have to say that it is phenomenal both from a quality and quality point of view af. Also tried on 500 f4 and 600 always Canon and goes great. From what I've heard and read a little bit around you say it's not so punchy on non-series optics L waved Competing Brands. |
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| sent on 11 Ottobre 2019 Pros: small and light, with the right lenses it works great Cons: with some lenses goes slow but does its duty, perhaps too expensive. Opinion: Tried with the canon 70-200 II 2.8 on 1dx II to photograph the bikes on the track and I was very satisfied. It is true that you go from f2.8 to f4 but the speed of the shot remains practically unchanged while on the canon 300 f4 is you lose here a stop (who cares) but the speed of the shot drops a lot and you notice the difference however the work in the end I brought it home with the latter because despite going slower than the 70-200, in the burst shot was still accurate and reliable. really satisfied. I did not do a careful analysis but the photos came out well are to my eye as sharp as those without and I did not feel any loss of quality (I repeat I did not do a micropixel analysis !) |
user72463
| sent on 30 Dicembre 2018 Pros: Quality, lightness Cons: Nothing, maybe the price but worth every penny that costs Opinion: The ideal playmate for Canon telephoto lenses, excellent yield both with 70-200 f/2.8 and above all with the 100-400 is II, especially because it allows the focus with all points at F/8 on the 5d Mark IV... maintains a very good speed of focus and loses very little from Point of view of the sharpness, sure Canon does not give it to you but for me it is a must buy |
  | sent on 20 Maggio 2017 Pros: Constructive levels from series L, nnitid, lightweight Cons: Maybe the price .... Opinion: Purchased mainly for use on the 100-400 IIrnin as the Kenko name does not work and the Canon 2x iii loses the automatisms. RnrnThough crisp and responsive despite stealing a stop on the openings, so far it does not seem to be mounted. The price is a bit excessive, but in the end you have a great and working product ... rnWarned where '2x iii does not work. |
 | sent on 12 Maggio 2017 Pros: Image quality, speed and precision of AF, construction, tropicalized Cons: Not usable on 100 L is macro Opinion: At 5d3 and 100 400 mk2 at 400mm the maximum aperture becomes f8 (one loses one) but the QI remains practically unchanged: it is as if it was not mounted. Even the AF performance is unchanged, although only 5d3 remains active with the 4th expansion point. I also have the Kenko Pro 300 DGX 1.4x that I paid one-third of Canon and on 5d3 with 100 400 mkII all the AF points can still be used, but it is slightly affected by the speed. IQ remains excellent even with Kenko and genuinely I can not say if Canon 1.4 III is better in this regard because they are both great. In general, what impressed me with the Canon series III is that the AF speed performance remains substantially unchanged, as if the multiplier was not there. RnA major flaw is that it does not work with the Canon 100 L is a macro that works correctly with the Kenko 1.4; Is an obvious choice of Canon marketing to keep your feet at 180 L macro. From a constructive point of view, sEnsura is really great: Kenko is much heavier than a much more plastic feel. In addition, with the Canon 1.4 III mounted, the tropicalization of the system is maintained. |
 | sent on 17 Ottobre 2016 Pros: Definitely improved over the previous version. Able to maintain almost unchanged is the AF speed that the optical quality on which it is equipped. Cons: Nobody. Having previously used the version II I can not see. Opinion: 6ugrave; light of the new version that made me feel more fragile. But in fact it is not, it has nothing to envy to the previous version. rnrnHo got to try on the Canon EF 500mm f / 4 L IS II USM with the 5D SR (amazing) and with the 1D MK IV with which to my mind keeps all its peculiarities, even if the camera body and its AF module it is a bit less young, on this last camera I also used with the 200mm f / 2.8 L II USM with considerable satisfaction both yield and velocity AF (basically I have not noticed his presence) when used with optical not the latest generation mistakenly thought the quality was worse, and even here I had happily ricredermi.rnIn substance in my opinion the new teleconverter 1.4x III has made great strides in quality to the point that if the first ' use of the version II was somewhat a stopgap to not lose the picture of a distant subject provided you give up a little bit of quality; Now the quality that returns the new version 1.4x III is directly comparable to the smooth optics on which montato.rnIl price seems adequate for what it is able to return, is a totally professional tool that can easily become indispensable. |
 | sent on 31 Ottobre 2015 Pros: no one else will have been a technical evolution from the first extender Canon Ii opinions are very divided and heterogeneous Cons: price and I think compatibility if you do not have goals canon largemouth Opinion: I own the first type I with a Canon Extender 70/200 f 4 IS always stabilized Canon and Canon 400mm f 5,6ho also multipliers Kenko Pro 1.4 and 2 300 DGXvale is worth selling the extender Canon I? and then you need to buy a new one for my lenses? or advantage is irrelevant? rnho noticed that on my 400 my Extender does not work well ..autofocus slow .. .drivetrain data ... rnmentre on 70/200 if the cavarni Kenko maintain automation and are fast nell'autofocusrnil decay of image however enough notevolernora I have a new body 5D Mark III and for this I make these questions |
 | sent on 16 Luglio 2014 Pros: Sturdy, weather sealed and auto-focus speed virtually unchanged. Fabulous color rendering. Cons: As always, the price, unfortunately Canon has raised the price lists in an exaggerated way. Opinion: Personally I almost always mounted on the old Canon 300mm F2, 8 L USM dell 'year 1999 (to be clear Not Stabilized version) rnrnTrovo imperceptible slowing dell'autofocusa and with an amazing quality to the photograph of birdlife in my humble opinion if they can not 'do without. Defects honestly I've never encountered. rnrn I would certainly recommend, eye caps because they differ in size from the previous ......... |
 | sent on 02 Maggio 2014 Pros: Great level building, gaskets, good optical performance, quality of materials and finish, lens aberration corrections on DPP. Cons: price is not exactly cheap. Opinion: In the past I used a multiplier that Sigma is no longer compatible with the latest optical canon, so I adopted the Canon 1.4x III series. I happily found that no cartoon, maintains good optical quality with a final decay very content of the image on EF 200 f2.8 L and EF 70-200 f4 L is the camera and 1D MkIII. What impressed me most is the quality of construction, the materials used and the level of finish of the machined bayonet Eph. The autofocus is fast overall except for some rare situation with reflective objects. Using it on 1DMk3, 50D and 1Dmk2 data communication between camera and lens + multiplier is excellent. Ultimately an excellent multiplier that saves weight and offers the flexibility of two focal perfectly usable. |
 | sent on 28 Febbraio 2013 Pros: quality, construction, convenience, weight Cons: price Opinion: It certainly is not given but I find it a good way to stretch the mm and light weight while maintaining good image quality. RnLo use the 70-200 f4 L IS (280mm f5.6 where it maintains the exceptional quality of the lens is not multiplied in all openings) and the 300 f4 L IS (420mm f5.6 with a minimum decline of sharpness but it is still a great way to have a good telephoto 400mm light and "cheap"). |
 | sent on 14 Febbraio 2013 Pros: Yield, convenience ', tropicalized Cons: High price, not light, reduction of 1 stop of brightness, which is not compatible with all lenses Opinion: Very practical to increase the range of focal lengths available to us with a relative weight, excellent optical quality with very little loss of sharpness especially on some lenses such as the 70-200 and 17 tse, ac and negligible distortion, it works best in the center and the fall of light and sharpness of the edges and 'very low; autofocus is fast and effective, highly recommended for those who want to travel light. |
 | sent on 17 Maggio 2012 Pros: compactness - weight - made Cons: - Maybe the price! It 'still a 2x multiplier when combined with optical jumps off a series of L, ( Opinion: Not having previously owned the Series II, which many feel was not so 'bad, I launched this multiplier new generation, at first blush compact and very light. I tested it only on the 300 2.8 i have to say is that it involves super good aberrations and vignetting it any other disease, the AF is fast and accurate, the combined use of a 1D mark III, tropicalization there 'and the present seal is demonstrated in full, I can only recommend it! cost € 440.00 |
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