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The following opinions have been automatically translated with Google Translate.
Opinion:taken used ... but equal to the new ... just recently, I took it to match it to 70/200 2,8 is II, I did not notice any differneze rendering or autofocus details when using the 70/200 alone or in pairs. I bought it because I had the old pompone 100/400 but, despite being satisfied, I had to go around with 70/200 and 100/400 to cover the focals up to 400 (hence two beautiful heavy targets + the rest of the etc.), with the 2x 2x extender I solved the problem, weighs a bit, is not very compact and with the 70/200 2,8 series 2 it has a great output with both 5dmk3 and 1dmk3.
Pros:You can have a twin focus with a small object. Great construction, good optical quality.
Cons:In addition to those known, the presence of light chromatic aberrations.
Opinion:The 2x is of great and undeniable utility, having in its full size, the ability to stretch its optics consistently, has no price. The design quality is great, I personally used it on the 70/200 and the 300 isII. The 70/200 suffers the presence of the tc, the quality drops considerably even in good light conditions, but you do not think to replace the 400 5.6L, which gives the best results for AF speed, no color aberrations and Best optical quality. The 300 2.8 isII also has a loss of sharpness, but the quality is still good, but not excellent. For those who dream of using this tc on a darker view of his, I absolutely recommend this operation, a 400 5.6 would become a 800 f11 with no af and with unacceptable quality (unless you are intent on doing astronomical photos)
Pros:Build quality, optical output, and AC tropicalisation
Cons:You can not mount it on all lenses as some compatible nor cascaded with another multiplier as did the series II
Opinion:I replaced the Canon 2X II series with this series III. Tried to bottom along with the Canon 300 f / 2.8 IS, the new multiplier behaves considerably better than the chromatic precedente.rnL'aberrazione has decreased significantly, almost completely assente.rnLa practical use optical quality is very good and the average of focus shots it is greatly increased compared with the old optics multiplied serie.rnAnche the AF is more reactive than that preciso.rnL'unica thing I would like is to be able to also use other lenses that are currently exploitable only multipliers with third parti.rnAlberto
Opinion:I use it for a week with the 70-200 f / 2.8 L USM II.Perde two stops, true, but what about the AF speed, I have not noticed big slowdowns, anzi.E image quality remains at the highest level. rnih conclusion, I am very happy with the purchase.
Opinion:I'm not a great lover of focal doublers ... Despite this I have always had one, since I am in Canon ... rnLo kept practically fixed on the Sigma 120-300 OS, one of the few zoom bear it, and I sold as soon as I sold quest'ottica.rnPreso the Canon 600 f4 IS the first set, I had the curiosity to prove it over and I bought the second copy, but it did not go well ... the multiplier worked fine, but on 1DIV and 5DIII the yield of the 600 I was not satisfied and so I rivenduto.rnQuando I switched to 1DX, I have taken back the curiosity and I bought the third Canon 2xIII ... and this time it went! : -DrnNonostante The doubler the picture is very engraved (especially around f13) and AF, although slowed down, it still manages to seguire.rnPer me the Canon 2xIII is a kind of necessary evil: I try to never use it, but when need is great to know that there is, that is as sturdy as a piece of steel, which is weather sealed ... rnCosta expensive, but allows otherwise impossible shots.
Pros:quality, autofocus with lenses series II, to tropical
Cons:price
Opinion:I purchased it for use with the Canon 70-200 F / 2.8L IS USM II and the Canon 300 F / 4 L IS USM. The autofocus on the 70-200 is very fast and accurate returning images really very beautiful and thereby becoming a 140-400 F / 5.6. On the 300 F / 4 I lose autofocus with the 6D (F / 8) but working in manual I can bring home good shots. And 'certainly recommended on all the objectives of series II, alternatively 2x Series 2 costs a lot less.
Opinion:Compared to the previous version have made quite a number of important steps, but the differences can be seen well only on very recent paintings. I use the 70-200 2.8 IS II (the only one of 70-200 that digests well 2X) and I must say that the results are really good, there is no comparison with the coupled smooth 70-200 2.8 and 2X II / III. Excellent overall performance, minimum drop in sharpness. The autofocus is slower but when the light is good, there are no major problems. Works even better with fixed (300 2.8, 400 2.8 ... 500/600 f4 for those who have a mark III or a series 1d and then wants to keep the AF). rnrnIl price? I paid 419 euro new, shop and Italian warranty. To double the focal length of your telephoto L series seems OK.
Pros:speed autofocus with new super telephoto camera bodies and
Cons:for use with older model or super telephoto camera bodies, the price.
Opinion:During a quick test done during a journey through the Canon 2x tc (2nd and 3rd version) and the Sigma, I noticed that with a friend at the center of the frame sharpness was better than the Sigma then in my possession. Tests done on a tripod, the same conditions, but with autofocus enabled, and for lack of time I checked the accuracy thereof, it shall yield the edges. From that test, I changed my camera, leaving the asp-c and arriving at a aps-h (1D Mark IV) and a FF (5D mark III). I preferred, however, migrate from Sigma Canon this, especially for the speed autofocus with the 5D mark III. And trying the 1DX a friend of mine I had the confirmation of the visible and appreciable improvement of this combination (1DX tc + 2X 400 f2.8 IS II + III). PS: If you do not have the combination of new and new super telephoto camera, rate it for quality / price ratio plus a compatible (Kenko / Sigma), rather than this model.
Pros:Minimal degradation of the image quality of a closing stop, tropical conditions drastically reduced chromatic aberration.
Cons:You will lose 2 stops of brightness, in some lenses the autofocus slows down considerably.
Opinion:I use it often on 500 f 4 is and the image quality is very high returns (closed at least af 9), l 'f slows down significantly: with the airborne it takes a little handle to get good results. Mounted on 70-200 2.8 II instead, the af is very fast, the degradation in terms of quality is little, but still greater than in the 500 f 4 is probably due to the different risolvenza of 2 ottiche.rnIn Ultimately, the board strongly to those who have high-quality super-telephoto (400 2.8, 500 f 4, 600 f 4, both series 1 and 2) and those with a 70-200 f 2.8 II for occasional hunting or photographic outdoor sports.
Pros:Sharpness, vignetting and chromatic absence of abberazione
Cons:Price
Opinion:I soldered the 2X extender series III to my Canon 300 f 2.8 for pictures of birds, and the only caosa that I can look in the negative, is the normal slowdown in focus. The multiplier is weather sealed and rugged construction. In cobinazione used by me (with both APS-C and FF) closing at f / 8 there are abberazioni color, vignetting, and pictures are very sharp. Worth all the money it costs. Very recommended!
Pros:data transmission between camera and optics, little loss of sharpness, impervious to water and dust ..... a perfect radoppiatore x who has to run and can not afford to carry around lenses fixed to 2.8
Cons:I have yet to find any defect
Opinion:If you are not fixed lenses from 2.8 (300-400mm), and you can not get close to the subjects that interest you, then he is the perfect compromise x derived from a 2x doubler. The loss of detail is minimal compared to the previous model and is able to make good performance even in low light. Solid and well attaches to the car to look like one with it. Stuck between the 7d and 400 2.8 (mine is not the latest series), reaches the focal length of 1100mm and over only f5, 6 ... is the stuff of pure chills if you think that the canon 1200mm weighs 16kg .......
Pros:Total lack of aberrations and vignetting, much less the other 2x. A hair sharper especially at the edges.
Cons:The price. Fortunately some sample used is.
Opinion:It 's the best 2x multiplier never tried it, but as obvious as it is, does not do miracles. Always a 2x it. Its construction is excellent and also to look inside you immediately notice that the work done by canon is good. As I said, has the great merit of not adding any type of aberration and does not increase significantly vignetting. Already these two small attentions that make your photos look like sharper and more microcontrastate especially compared to those made with the previous series 2x II. Of sharpness in the most effective, though there is not much more, a hair yes, but not enough to justify the outlay double. Obvious that if, like me, you find it used and if you're maniacs IQ, this 2x compared to the other something more from him. Of course, it should be used with lenses of a certain caliber, or it will cost more than the multiplier that lens!
The following opinions have been automatically translated with Google Translate.
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