Lens construction: 7 elements in 6 groups

Dimensions: 66 x 55mm

Weight: 355g

Note:

Compatible with AF-S and AF-I Nikkor lenses except AF-S 17-35mm f/2.8D IF-ED and AF-S 28-70mm f/2.8D IF-ED.

    - Designed for AF-S and AF-I Nikkor lenses

    - Increases the original focal length by 100%

    - Reduces lens aperture by two f-stops

    - Autofocus possible with AF-S and AF-I Nikkors having maximum aperture of f/2.8

    - New Front Cap BF-3A (can be used as body cap)