Sigma TC-1401 1.4x Teleconverter (Canon)

The TC-1401 1.4x Teleconverter from Sigma will offer an increase in focal length of 1.4 times for select Global Vision lenses. This model offers full communication between the lens and camera and will allow autofocus to operate up to f/8. The teleconverter also features one Special Low Dispersion element for reducing the appearance of chromatic aberrations and maintaining quality. Additionally, for protection, the TC-1401 is both dust and splashproof. When attached, the 1.4x conversion results in a light loss of approximately one stop. Sigma TC-1401 For Canon EF Specs Mount Canon EF Magnification 1.4x Optical Design 7 Elements in 5 Groups Light Loss 1 Stop Length 1" / 25 mm Diameter 2.7" / 68.5 mm Weight 6.7 oz / 190 g