Nikon Corporation Imaging Company: Choosing The Right Lenses: Optical Technologies 01

Explanation of Nikon optical technologies

Coating lens element

Nikon Super Integrated Coating (SIC)

To enhance the performance of its optical lens elements, Nikon employs an exclusive new multilayer lens coating that helps reduce ghost and flare to a negligible level.

An improvement on our breakthrough Nikon Integrated Coating, Nikon Super Integrated Coating (SIC) achieves a number of objectives, including minimized reflection in the wider wavelength range and superior color balance and reproduction.
Nikon Super Integrated Coating is especially effective for lenses with a large number of elements, like our Zoom-Nikkors.

Comparison of normal and ED glass

ED glass

Developed by Nikon optical designers and Nikon glass specialists, ED (Extra-low Dispersion) glass used in selected telephoto and telephoto zoom lenses provides superior performance.
ED glass effectively minimizes chromatic aberration to a degree that is remarkable in telephoto lenses. Advances such as this, backed by a great amount of valuable data gathered through the long years of Nikon’s association with professional photographers, as well as through intensive R&D, ensure that Nikon continues to make lenses that meet or exceed market needs.

Aspherical lens element

Aspherical Lens

Thanks to Aspherical Lens Elements, lenses incorporating special optical characteristics can be made. These lenses can be made smaller, lighter and, in general, better than similar lenses which employ only spherical elements.
The world's fastest 28mm lens, the AF Nikkor 28mm f/1.4D, uses an aspherical element to ensure its compact size and to obtain superb performance by eliminating sagittal, or arrow-shaped, coma, even at its widest aperture.

Close-Range Correction (CRC)

Close focusing is a very desirable characteristic for any lens. A telephoto lens that focuses closer can produce dramatic results. Even a wideangle lens that can focus close creates opportunities for interesting perspectives.

Nikon is a pioneer in the development of Close-Range Correction (CRC) systems. Sometimes referred to as "Floating Element" designs, CRC enables selected Nikkor lenses to provide comparable performance at both near and far focusing distances.
For wideangle lenses, CRC is yet another example of how Nikon designers constantly strive to provide Nikon`s Nikkor system lenses with advanced and high-performance capability.

Color of images appearing in this website may differ from the originals.
Specifications are subject to change without any notice or obligation on the part of the manufacturer. December 2003

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