Equipped with 1 SLD (Special Low Dispersion) glass element for maximum image quality, the new Sigma Global Vision teleconverters utilize a splash and dust proof construction for long lasting durability. Created exclusively for the Global Vision lenses, these teleconverters ensure the utmost in compatibility, even for large diameter lenses. With effective AF at F8 and 1.4x the reach, get the most out of your Sigma lens.
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Please be advised that the updated version of lens firmware will make it compatible with the new tele converters, however it will also make it incompatible with conventional APO TELE CONVERTER 1.4x EX DG and APO TELE CONVERTER 2x EX DG.
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Customer Reviews. 1 review(s)
Posted on 5/1/2016Great teleconverter that DOES AF.
This is a great teleconverter for the Sigma 150-600 mm contemporary lens. It DOES autofocus even at f9. Remember that it reduces your max f-stop but still creates sharp images. It can be difficult to get a fast enough shutter speed when shooting wildlife or sports, which these are generally used for on long telephoto lenses, so bright light is necessary. I use this teleconverter on the Sigma 150-600 contemporary on a Nikon D7100. Note that it ONLY works on three lenses designated by Sigma which are the 150-600 sport and contemporary lenses and the 120-300 sports lens. So don't buy this teleconverter with the intention of using it on all or any of your other lenses. Also, Sigma does make another 1.4x TC but it's less money and is NOT the same as this one. Be sure you get the TC-1401. I tried the other TC when the salesperson at the photo shop gave me the wrong one. It AF'd very slowly and was not as sharp. Fortunately the price is $100 less expensive so that tipped me off. When I specified I wanted the TC-1401 and I attached that to my lens it was MUCH sharper and faster at AF.
- FOCAL LENGTH SIMULATOR
The focal length changes the angle of view in an image. The longer the focal length, the smaller the angle of view and the greater the magnification.
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- LENS TELECONVERTER COMPATIBILITY CHART
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- MTF CHART GUIDE
See how a lens performed using the Modulation Transfer Function (MTF) Chart Guide. The MTF is just one criterion used to evaluate lens performance.
- FOCAL LENGTH SIMULATOR