Sigma's TC 2011 Teleconverter is specifically designed for use with Sigma L Mount lenses. When mounted between your lens and camera body, this teleconverter will increase your focal length of your lens by 2x. It is constructions from 8 elements in 4 groups, is splash and dust proof as well as being able to maintain effective autofocus across your entire focal range and through all apertures.
Price: £399.00 from Wex Photographic
Sigma's TC 1411 Teleconverter is specifically designed for use with Sigma L Mount lenses. When mounted between your lens and camera body, this teleconverter will increase your focal length of your lens by 1.4x. It is constructions from 7 elements in 4...
The 1.4 EX is placed between the lens and the camera, and it allows the photographer to use the 70 200mm f2.8 lens as a 98 280m f4 lens, and the 300mm f2.8 lens as a 420mm f4 lens; the high optical performance is maintained and the AF speed is not affected.
The Sigma 1.4x TC 1401 teleconverter has been developed exclusively for Sigma's Global Vision lenses, such as the Art, Sports and Contemporary range. By mounting it in between a telephoto lens and a camera, the offered magnification of focal length is...
