Friday, November 9 2007

Zeiss announces infrared-optimized lenses


Carl Zeiss has announced a pair of lenses that are specially coated to better transmit near-infrared wavelenghts. The Planar T* 85mm f/1.4 and Distagon T* 25mm f/2.8 ZF-IR lenses also have a focusing scale that is in the near-infrared range, and are designed especially for digital cameras without a barrier filter. The lenses are being marketed to forensic and scientific users.

For details, read the Zeiss press release:

Carl Zeiss Announces Special Series of ZF Lenses

OBERKOCHEN/Germany, 06.11.2007. Following the great success of the ZF lens series in industrial applications, Carl Zeiss now announces an additional model. The ZF-IR lenses were developed for special applications in the near infrared range. The Planar T* 1,4/85 ZF-IR and Distagon T* 2,8/25 ZF-IR are the first products in this special series of the familiar ZF lenses.

The Planar T* 1,4/85 ZF-IR and Distagon T* 2,8/25 ZF-IR lenses offer all the benefits of the ZF series. They feature a high-quality mechanical design, and their optical elements are made entirely of glass. The lenses are extremely fast and provide excellent contrast. The all-metal focusing device ensures precise and easy operation.

A special coating which is transmissible for wavelengths up to 1,100 nanometers is applied to enable photos in the near infrared range. Of course, the focusing scale has also been matched to this wavelength range. The ZF-IR lenses from Carl Zeiss are suitable for use with special cameras (IR cameras without a barrier filter). Application fields of technical IR photography include, in particular, forensic police tasks.


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