Nikon TC-20E III AF-S Tele Converter for Camera

Product Information

Not bad! The biggest sharpness robber here are atmospheric conditions and the fact that these palms are not lying in the same plane, so most of them are simply out of focus. Nikon stopped offering 5-year lens warranties in 2021 in an effort to save themselves money at our expense. It's just as sharp with the 2x teleconverter. You can see more fine details, even though the heat shimmer is magnified twice as much as the first image without the teleconverter.

This is a detailed review of the Sigma 2.0x Teleconverter EX APO DG for the Nikon mount. I had a chance to test out this teleconverter, along with the 1.4x Sigma teleconverter when working with the Sigma 120-300mm f/2.8 lens, so I wanted to share some of my findings and compare the teleconverter to its Nikon counterpart, the Nikkor TC-20E III. In this review, I will go over the optical characteristics of the Sigma 2.0x teleconverter and talk about its performance when using both Sigma and Nikon super-telephoto lenses. Used with a great lens, of course it's ultrasharp; sharper potentially than the air through which we shoot. I recently rented a Nikon Z7ii (with battery grip), Nikon Z 400 f4.5 S lens, Nikon Z 2x teleconverter. This is my experience. makes no AF teleconverters, with the exception of the TC-20E and TC-14E that only work with exotic AF-I and Like I pointed out above, forget about trying to get this teleconverter to focus on Nikkor lenses. On Sigma lenses, however, it is a different story. Although the AF speed and accuracy decreased a little, the combo worked even in low light situations. I was able to focus with the 120-300mm + Sigma 2x TC on the D3s in my living room that was lit with just a single 100 Watt light bulb! There were a couple of focus errors here and there, but it worked out quite well overall. On the negative note, the AF reliability seems to go down at distant subjects (towards infinity). NIKON D7100 @ 600mm, ISO 800, 1/500, f/5.6 Sharpness, Contrast and Color RenditionWith the Nikon Z 70-200mm f/2.8 VR S, my results were similar. The 1.4x TC had 0.38% barrel distortion at 280mm, while the 2.0x TC had -0.23% pincushion distortion at 400mm. (This is compared to 1.93% barrel distortion of the bare lens at 200mm.) Bokeh Detailed specifications for the lens, along with MTF charts and other useful data can be found in our lens database. NIKON D3S + 300mm f/2.8 @ 600mm, ISO 560, 1/500, f/5.6 He is a Fellow of The Royal Society of Arts, holds a Foundation Degree in Equitation Science and is a Master of Arts in Publishing. He is member of Nikon NPS and has been a Nikon user since the film days using a Nikon F5 and saw the digital transition with Nikon's D series cameras and is still to this day the youngest member to be elected in to BEWA, The British Equestrian Writers' Association. Here’s another example, this time with a lens that has a bit more chromatic aberration in the first place – the Nikon Z 100-400mm f/4.5-5.6 VR S. In the chart below, the “560mm” entry refers to the 1.4x TC, and the “800mm” entry refers to the 2.0x TC:

People worry waaaaay too much about lens sharpness. It's not 1968 anymore when lenses often weren't that sharp and there could be significant differences among them; ever since about 2010 all new lenses are all pretty much equally fantastic. The lenses with f/11 for both “Acceptable” and “Optimal” sharpness produce very unreliable results. NIKON D3S + 70-200mm f/2.8 @ 370mm, ISO 280, 1/1250, f/8.0 Lens Construction and Handling

Adding either teleconverter to your lens will increase the level of chromatic aberration that you experience with most lenses. However, as usual, the exact performance depends on the lens + TC combination. In practice, though, teleconverters have disadvantages, including the effect they have on your lens’s maximum aperture and often on the overall optical quality of your photos. A pretty impressive difference! And if you’re wondering whether you can achieve the same results by simply cropping: Yes, you can. To achieve the same angle of view of the TC-2.0x you simply need to crop the image without TC by a factor of two. But then you’re losing 75% of pixels and end up with an 11MP photo instead of the original 45MP. Which might well be enough for the intended print or viewing size: a modern 4k Monitor only has 8MP and printing an 11MP photo at a very fine pixel-density of 240 dpi still yields a print of 17×11 in. or 44 x 29cm. You’ll certainly lose focusing speed by adding either of these teleconverters, and the 2.0x TC has more of a slowdown than the 1.4x TC. Technically, though, the biggest decider of focusing speed is not whether you’ve used a teleconverter. Instead, it’s the maximum aperture of your setup and the level of light in the environment. The one deal breaker IMO for wildlife shooters is the lag on startup. When the camera goes to sleep mode it takes what seems about two seconds to start up after hitting the shutter. If you only shoot landscape or architecture this won’t matter, but for wildlife two seconds can be an eternity. For example, I missed most of a coyote walking across a wash while waiting for the camera to wake up. Neither of the two Sony bodies I used had this issue.