Sigma TC-2001 2x Teleconverter for Nikon F Display Neutral density filters do not

Neutral density filters do not affect the colouration of the image and the 1

it has a heavy weight of 310 gsm along with a thickness of 19 mil and an opacity of >98%

Exposed elements feature a fluorine coating that affords protection to the optical system against dust

Head and even Eye tracking when People detection is set

An aspherical lens element helps to compensate for spherical aberration to maximize image quality

Sigma TC-2001 2x Teleconverter for Nikon F Display Neutral density filters do notOptimised for Nikon F mount lenses in the Global Vision line, the TC 2001 2x Teleconverter from Sigma will offer an increase in focal length of 2 times for select Global Vision lenses. This model offers full communication between the lens and camera and will allows autofocus to operate at up to f 8. The teleconverter also features two Special Low Dispersion elements for reducing the appearance of chromatic aberrations and maintaining quality.