A long-reaching super telephoto designed for sports, wildlife, and nature applications, the AI-S NIKKOR 600mm f/4s IF-ED from Nikon is a manual focus lens featuring AI-S automated aperture control. The optical design incorporates a pair of extra-low dispersion elements to reduce chromatic aberrations and color fringing for improved image quality and color accuracy, and a UV filter is incorporated into the lens' design to both protect as well as cut haze while shooting. Benefitting the manual focus operation of the lens is a preset focusing aid that allows for intuitive rapid re-focusing to a specific set point. An internal focusing design is also employed to maintain the overall lens length as well as promote smoother handling.
The large overall size of the lens is benefitted by an integrated tripod collar, which features a rotating ring for smooth and quick switching between horizontal and vertical shooting orientations. Additionally, a rear 39mm drop-in filter slot is featured as well as a built-in telescoping lens hood.
Super telephoto 600mm f/4 lens is compatible with 35mm film and FX-format Nikon F-mount cameras, and can also be used on DX cameras where the equivalent focal length will be 900mm.
A pair of extra-low dispersion elements are incorporated in the front of the optical design, and help to reduce chromatic aberrations and color fringing for increased clarity and color accuracy.
Manual focus-only operation is benefitted by a pre-settable focusing aid, which can be set to a specific focusing distance to allow for intuitive rapid re-focusing to the same position.
An internal focusing design maintains the overall lens length during use and also eliminates the front elements from rotating to better permit working with circular polarizing and graduated filter types.
Integrated tripod collar is featured to support and balance the lens during use, and a rotating ring lets you quickly switch between vertical and horizontal shooting orientations.
A built-in, dust-proof UV filter is featured at the front of the lens to protect the front element as well as reduce atmospheric haze that is more prevalent when working with longer focal lengths.
A rear slip-in filter slot permits the use of 39mm screw-in filters as well as gelatin filters via the included holders.
Built-in telescoping lens hood prevents stray light from entering the lens and causing lens flare. The HE-5 Hood Extension is also included to lengthen the hood and improve its effectiveness when working in strong lighting conditions.