• 08-23-2007, 02:31 AM
    Photo-John
    1 Attachment(s)
    Nikon AF-S NIKKOR 24-70mm f/2.8G ED Zoom Lens - Press Release
    Nikon introduces new standard zoom NIKKOR lens with constant f/2.8 aperture

    Tokyo – Nikon Corporation is pleased to announce the introduction of a new standard AF-S Zoom-NIKKOR lens with constant f/2.8 aperture to further strengthen its zoom lens lineup. This new lens, together with the simultaneously introduced ultra-wideangle AF-S NIKKOR 14-24mm f/2.8G ED, and the existing AF-S VR Zoom-Nikkor 70-200mm f/2.8G IF-ED telephoto zoom lens, is part of an exclusive Nikon high-performance zoom lens system featuring the high f/2.8 aperture and covering a focal range of 14mm to 200mm.

    This AF-S NIKKOR 24-70mm f/2.8G ED is a standard 2.9x zoom lens with a highly practical wideangle to medium-telephoto focal range, offering maximum versatility to accommodate everything from tight portraits to expansive scenes. With compact dimensions of Ø83 x 133 mm/Ø3.3 x 5.2 in. and a low weight of approx. 900 g/31.7 oz., it provides superb handling and outstanding portability.

    Main Features
    • Constant maximum aperture of f/2.8 at all focal lengths
    • Enhanced optical formulas, engineered to produce exceptional sharpness, contrast and color, render outstanding image integrity
    • ED (Extra-low dispersion) glass elements minimize chromatic aberration to deliver stunning sharpness and contrast
    • Aspherical lenses including large-diameter PGM element eliminate various types of lens aberration even at the widest aperture
    • Nano Crystal Coat virtually eliminates internal lens element reflections, effectively reducing ghosting and flare
    • High-performance Nikon Super Integrated Coating offers superior color reproduction, while minimizing ghosting and flare
    • IF (Internal Focusing) enables focusing without changing the length of lens barrel
    • Nikon’s exclusive Silent Wave Motor for fast, quiet autofocus operation
    • Rounded diaphragm opening (9 blades) makes out-of-focus elements appear more natural
    • 0.38 m/1.2 ft. closest focusing distance with focal length 35-50 mm
    • Filter attachment size of 77 mm
    • M/A mode enables instant switching from autofocus to manual focus, even during AF servo operation, with virtually no time lag
    • Dedicated flower-shaped lens hood effectively minimizes stray light
    • Lens barrel is built for comfortable holding while featuring a rugged design; zoom and focusing rings provide smooth operation
    • Engineered to Nikon professional D-SLR standards to effectively resist dust and moisture


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    The superior functioning of the newly developed optical system ensures flawless synchronization with Nikon’s digital SLRs. The design — featuring ED (Extra-low Dispersion) glass elements for minimal chromatic aberration, and aspherical lenses including large-diameter PGM (Precision Glass Molding) element to eliminate coma and other types of aberration even at the widest aperture— delivers brilliant overall optical performance. Nano Crystal Coat, extra-low refractive index coating, virtually eliminates internal lens element reflections across a wide range of wavelengths, and is particularly effective in reducing ghosting and flare.

    Other important features include Nikon’s Super Integrated Coating that minimizes reflection in the wider wavelength range to ensure superior color balance and reproduction. Nikon’s exclusive SWM (Silent Wave Motor), incorporated in the lens body, ensures fast, quiet autofocus operation. M/A mode lets users switch quickly from automatic to manual focusing, even during AF servo operation, with virtually no time lag. The rounded diaphragm opening makes out-of-focus elements appear more natural. A flower-shaped bayonet hood is supplied.

    The lens barrel is designed for secure holding, with zoom and focusing rings of the optimal diameter for smooth rotation, and rubber-coated to provide comfortable operation while ensuring ample ruggedness.

    This new zoom lens is the latest addition to an already formidable lineup, offering photographers enhanced shooting flexibility.

    Note: Specifications, design, standard accessories, and release schedule may differ by country or area.
  • 08-23-2007, 02:35 AM
    Photo-John
    AF-S NIKKOR 24-70mm f/2.8G ED Zoom Lens Specifications
    <table bgcolor="white" width="550" cellspacing="1" cellpadding="5" border="0"><tr><td bgcolor="white" colspan=2><strong>AF-S NIKKOR 24-70mm f/2.8G ED Specifications</strong></td></tr><tr><td bgcolor="white" width="45%"><strong>Focal length</strong></td><td bgcolor="white" width="55%">24-70mm</td></tr><tr><td bgcolor="white" width="45%"><strong>Maximum aperture</strong></td><td bgcolor="white" width="55%">f/2.8</td></tr><tr><td bgcolor="white" width="45%"><strong>Minimum aperture</strong></td><td bgcolor="white" width="55%">f/22</td></tr><tr><td bgcolor="white" width="45%"><strong>Lens construction</strong></td><td bgcolor="white" width="55%">15 elements in 11 groups (with 3 ED glass elements, 3 aspherical lenses and one Nano Crystal Coat)</td></tr><tr><td bgcolor="white" width="45%"><strong>Picture angle</strong></td><td bgcolor="white" width="55%">84° - 34°20’ (61° - 22°50’ with DX-format camera)</td></tr><tr><td bgcolor="white" width="45%"><strong>Closest focus distance</strong></td><td bgcolor="white" width="55%">0.38 m/1.2 ft. (with focal length 35-50 mm)</td></tr><tr><td bgcolor="white" width="45%"><strong>Maximum reproduction ratio</strong></td><td bgcolor="white" width="55%">1/3.7</td></tr><tr><td bgcolor="white" width="45%"><strong>No. of diaphragm blades</strong></td><td bgcolor="white" width="55%">9 (rounded) </td></tr><tr><td bgcolor="white" width="45%"><strong>Filter/attachment size </strong></td><td bgcolor="white" width="55%">77mm</td></tr><tr><td bgcolor="white" width="45%"><strong>Focusing</strong></td><td bgcolor="white" width="55%">Internal Focusing (IF) system; autofocus with a built-in SWM and manual focus </td></tr><tr><td bgcolor="white" width="45%"><strong>Diameter x length (extension from lens mount)</strong></td><td bgcolor="white" width="55%">Approx. 83 x 133 mm/3.3 x 5.2 in.</td></tr><tr><td bgcolor="white" width="45%"><strong>Weight</strong></td><td bgcolor="white" width="55%">Approx. 900 g/31.7 oz.</td></tr><tr><td bgcolor="white" width="45%"><strong>Supplied accessories</strong></td><td bgcolor="white" width="55%">Bayonet Hood HB-40, Semi-soft Case CL-M3</td></tr></table>