INFRARED PHOTOGRAPHY

In infrared photography, the plane of focus is slightly behind that of visible light. Consequently, when you are using infrared film in the camera, you have to compensate for this difference in focus. With the Zoom-Nikkor 35-70mm f/3.5, two infrared focusing indices are provided for the focal lengths of 35 and 70mm, You first focus on your subject in the normal way, then read off the camera-to- subject distance indicated on the focusing ring. This distance is then set against the corresponding infrared focusing index for the focal length you are using. For intermediate focal lengths, you can estimate the corresponding corrective point, using the engraved lines as a guide.

The scales on page 25 can be used for determining the amount of adjustment via the dotted infrared compensation line included

In the same manner as described in the "depth-of-field scale" section, match the prefocused subject distance (using the B scale) with the focal length and aperture scate central indicator line (on the A scale). The distance from the central indicator line to the dotted compensation line represents the amount of adjustment required Now, turn the lens' focusing ring counterclockwise until the prefocused distance is shifted as prescribed on the scales.

FEATURES/SPECIFICATIONS

Focal length: 35-70mm

Maximum aperture: f/3.5

Lens construction: 10 elements in 9 groups

Picture angle: 62° ^34°20'

Distance scale: Graduated in meters and feet from 0.7m (2.5 ft) to infinity («>), in macro focusing mode at 70mm setting, down to 0 35m (1.2 ft)

Zooming control: Independent zooming control ring with rotation of 71M6'; reference marks provided for focal length settings of 35mm, 50mm. and 70mm; zooming is impossible in macro focusing mode

Focusing control: Independent focusing ring with total rotation of 200°55'

Macro focusing function: With the macro focusing button engaged, close-up photography down to 0 35m (1 2 ft) is possible

Aperture scale: f/3.5M/22 on both standard and aperture-direct-readout scales; click-stop at f/4 but not engraved on aperture ring

Diaphragm: Fully automatic

Exposure measurement: Via full-aperture method

Mount: Nikon bayonet mount

Attachment size: 62mm (P = 0 75mm)

Dimensions: 66 5mm4 x 105mm (overall); 96.5mm extension from flange

Weight: Approx. 520g

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Nikon Camera Lens Infrared Photography, Features/Specifications, Focal length 35-70mm Maximum aperture f/3.5

Camera Lens specifications

Nikon camera lenses are renowned for their exceptional quality, versatility, and innovative technology, making them a favorite among both amateur and professional photographers. From capturing breathtaking landscapes to shooting intimate portraits, Nikon lenses offer a range of options tailored to various photographic needs.

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Another significant characteristic of Nikon lenses is their versatility. The NIKKOR lens lineup includes a diverse array of focal lengths, from ultra-wide-angle lenses ideal for landscape photography to telephoto lenses perfect for wildlife and sports. This variety ensures that photographers can find the perfect lens for any situation, allowing for creative expression without limitations.

Nikon is also at the forefront of technological advancements. Many NIKKOR lenses are equipped with Silent Wave Motor (SWM) technology, which provides fast, quiet autofocus. This feature is particularly advantageous in environments where silence is crucial, such as during wildlife photography or in intimate settings like weddings. The use of weather-sealing in many lenses adds another layer of protection, allowing photographers to work confidently in challenging environmental conditions.

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In conclusion, Nikon camera lenses blend superior optical quality, advanced technology, and practical design, catering to the needs of diverse photographers. With features that enhance creativity and shooting flexibility, Nikon lenses continue to be a trusted choice for capturing stunning images. Whether you are an enthusiast or a seasoned professional, there is a Nikon lens suited for your photographic journey.