Sigma's TC-2001 2x Teleconverter
increases the focal length of select Nikon F-Mount Global Vision lenses
by a factor of two. The TC-2001 fully integrates camera and lens, and
permits autofocus at aperture settings up to f/8. The splashproof and
dustproof teleconverter includes two Special Low Dispersion (SLD)
elements, which limit chromatic aberrations and contribute to overall
image quality. The attachment of the TC-2001 will cause light loss of 2
stops. Includes soft zippered case.
Autofocus: Up to f/8
Dimensions (DxL): 2.7 x 1.9"
(69.8 x 48.9 mm)
Weight: 10.2 oz (290 g)