Kenko PRO 300 AF 3x DG Canon - Description:
The Kenko PRO 300 AF 3x Teleconverter is made with high quality multicoated optical glass supplied by Hoya corporation, the worlds largest manufacturer of optical glass. The Kenko PRO 300 AF 3x DG Teleconverter is designed to be used with lenses of 50mm or above, and work best with telephoto lenses of 100mm to 500mm. The Kenko PRO 300 AF 3x Teleconverter can be used with telephoto zoom lenses as well as prime lenses, but, due to Kenko PRO 300 AF 3x Teleconverter design, Kenko does not recommend them for lenses that have a zoom range that starts under 50 mm.

Important: Due to the 3 stop light loss inherent in a Kenko PRO 300 AF 3x converter Kenko states that the Kenko PRO 300 AF 3x Teleconverter will not auto focus with lenses that have a smaller aperture than f/2.8. With all lenses having apertures smaller than f/2.8 Kenko recommends using the Kenko PRO 300 AF 3x Teleconverter in manual focus mode

Specification of Kenko PRO 300 AF 3x DG Teleconverter
Construction of Kenko PRO 300 AF 3x Teleconverter is in 4 Groups/ 7 Elements
Dimensions (Length x Diameter) of Kenko PRO 300 AF 3x Teleconverter is 2.64 in. (67.1 mm) x 2.67 in. (68.0 mm)
Weight of Kenko PRO 300 AF 3x Teleconverter is 7.05 oz. (200 grams)
Notes Kenko PRO 300 AF 3x Teleconverter MultiCoated, Depth of Field: of prime lens/Exposure Magnification: Approx. 3 stops

Accessories supplied with Kenko PRO 300 AF 3x DG Teleconverter
Kenko PRO 300 AF 3x Teleconverter caps
Kenko PRO 300 AF 3x Teleconverter instruction manual
Kenko PRO 300 AF 3x Teleconverter box
Kenko PRO 300 AF 3x soft case.