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The following opinions have been automatically translated with Google Translate.
Opinion:Taken with many prejudices and perplexities after testing it on Nikon 500 f 4 AF-s ... on Nikon 300 f2.8. AF-i. Latest model. ( works great on this AF-I too.. Some had told me that it only worked his af-s ... It is not true in this case ... And on Nikon 70-200 f 2.8 AF-s first model .. Really I am very satisfied, obvious and a multiplier,,, and not a fixed,, but I used it both with D4 and with D850 and really amazed me (this week I photographed Jupiter and its moons ... It is not a telescope but it behaved well (if you close a stop improves) used 500 + 2x on d850 X jupiter and its moons
Cons:unjustified cost can not mount manual targets at least my esemplarern
Opinion:I tried the teleconvert with Nikon 70-200 f2.8 VR good focus and stabilization sharpness not much higher than doubler Kenko 2.0x DGX MC7 paid macro 30 euro used but mounts all the goals that the D800 machine can bring. I hope to have found a defective model otherwise does not really make sense spending. He did not carry the automatic focus using the motor of the machine and can not physically fit goals as the DC-135 AF Nikon F2D the Zaiss and Nikon AF-I 300mm f / 2.8 ED-IF and all manuals that I possess .
Cons:Price, but with a little patience you can also find used;)
Opinion:I tried it with both the 70-200 and 200-400 2.8 and I was pleasantly impressed. 70-200 on the AF is always fast and the image quality is very good. Same for the 200-400, only that the AF slows down a bit, but double the multiplication factor, and even if it becomes a f8, always have on hand a 800, and for a certain type of photo is a great focal!
Pros:Very good as TC, though not comparable to excellence TC 1.4.
Cons:Negative points in my expensive and slow to AF.
Opinion:Who wants and want a powerful telephoto without spending too much this is really a good solution; improved from the old version in all aspects especially the sharpness, very fast and accurate AF mounted with the Nikon AF-S 70-200 VR II works really well, except in the Nikon AF-S VR MICRO 105 has all the features but AF is a bit slow. When photographing distant subjects, such as wildlife, birds Nikon TC-20E III is a valuable tool that will allow you to photograph the subject without getting close and disturb them, giving you a lot of satisfaction.
Opinion:Tried with both the 70-200mm f/2.8 G ED VR II with the 105mm f/2.8 G ED VR Micro and I was really pleased! RnIncisività truly remarkable to be a 2X AF fast enough on the 70-200 but very slow on 105.rnSono always been very skeptical about the fact of having to multiply a lens ... (Especially a zoom lens), but I must admit that the results are really interesting!
Cons:The specimen of which I have worsened compared to the af kenko I had before
Opinion:Strangely, the AF performance has deteriorated with the passage by kenko MC7 this. I'd like to compare it with other twins, since I find this strange thing and I'm afraid it's just my copy, not a birth defect. I've used both with 70-200, 200-400 with that ... I think I go to get my tc17. I'll keep this to match the 105 micro, since the image quality is very good ...
Pros:Great image quality coupled with Nikon AF-S 300mm f/2.8 G ED VR.rnL 'f remains excellent with conditions favorable light and still very good with light scarsa.rnSe subjects are not too far away is already in utilizzabilissimo full aperture.
Cons:Small thing, but I would have preferred not to hear the sound of the latch to the aperture when it is detached from the machine.
Opinion:I've always been super happy with the duplicator in questione.rnDa then when I switched from D300 to D3 my satisfaction is further aumentata.rnCon the D300 worked fine in good light conditions, with the D3 is almost always used with great risultati.rnVisto the weighs practically nothing and I never do without taking him out with me.
Pros:Very "transparent" and then high quality 'image. Much improved from the point of view of chromatic aberrations. Af more 'faster than the old model.
Cons:High price.
Opinion:A purchase very appropriate in my case. With the Af-s 300 f2.8 MkI the difference with the old model and 'unmistakable quality' image quality, very sharp, Af comparable to 1 .7 x. Excellent even with faraway subjects (with the old images were soft in that case) ... I do not know with less optical solving, but I'm really happy! ;-)
Opinion:I must say I am extremely impressed with the new TC-20EIII. The optical scheme renewed has been adapted in order to give the best with his new family VR2. For those who have a fixed optical VR1 improvements are still good while for those using optical VR2 will be excellent. Surprising results with the 70-200 2.8 VR2. It is rumored that it was ottimizzatto for the new zoom and this is proof. Nikon says it is not possible to make fire with 105mm f2.8 micro. It is not true. Despite the autofocus become extremely slow yet fully efficient and accurate.
Cons:High price, limited performance increase compared to the previous version (at least from the viewpoint with which I have tried)
Opinion:I had the first TC-20E I used occasionally with zoom Nikon AF-S 80-200mm f / 2.8 IF ED. I switched to this version drawn by the optical scheme renewed. The improvement but there has been very limited, only the edges now appear much more incised, while in the center of the frame I did not notice significant differences. And 'maybe a hair sharper wide open, but it is difficult to confirm impressions. I've read that with other focal lengths (fixed) the performance is much better. For the moment I can make a 160-400mm f / 5,6 decent quality and with a very fast and accurate AF, better than the 80-400mm AF-D.