I'echelle A. II ne vous reste plus qu'a lire les ch iff res (echelle B) figurant en face des deux lignes {echelle A) correspondant a I'ouverture affichee; ces chiffres ex- priment la profondeur de champ en fonction des vateurs affichees. Par exemple, si I'objectif est mis au point sur 3m (10 ft) avec une focale de 60mm et I'ouverture regtee a f/16, les chiffres sur I'echelle des distances en regard des lignes cor- respondant a I'ouverture f/16 indiquent que la profondeur de champ s'etend de 2m (6,6 ft) a 5m (16,6 ft). II vous est egalement possible d'evatuer visuelle- ment la profondeur de champ en appuyant sur le bouton de controle prevu sur le boTtier.

PHOTOGRAPHIE EN INFRAROUGE

Le plan de nettete maximale en infrarouge est legerement decale (vers I'arriere) par rapport a ce qu'il est en lumiere visible. \tous devez done com- penser ce decalage lorsque vous photographiez sur film infrarouge noir-et- blanc. A cet effet deux reperes de correction pour ('infrarouge, valables pour les focales 35 et 70mm, sont graves sur le Zoom-Nikkor 35-70mm f/3,5. Faites d'abord la mise au point normalement, puis relevez la distance qu'indique votre bague et reportez-la face au repere de correction correspondant a ia locale choisie Aux focales intermediaires, laites une estimation de ce repere en partant des lignes gravees.

Les echelles a la page 25 permettent de determiner I'importance de ces cor- rections, grace a la ligne pointillee qui y figure.

Selon la technique decrite ci-dessus dans le chapitre "profondeur de champ," amenez la distance preselect ion nee (echelle B) sur la ligne repere de focale et d'ouverture (6chelle A). La distance separant cette ligne repere et la ligne pointillee represente la correction a apporter. Tournez maintenant la bague de mise au point de I'objectif dans le sens anti-horaire jusqu'a ce que la distance preselectionee soit modified comme I'indiquent les echelles.

CARACTERISTIQUES/SPECIFICATIONS

Focales: 35~70mm

Ouverture maximale: f/3,5

Construction optlque: 10 lentilles en 9 groupes

Champ angulalre: 62°^34°20'

Echelle des distances: Graduee en metres et en pieds de 0,7m (2,5 ft) a I'infini (»); dans le mode de mise au point macro sur la position 70mm, jusqu'a 0,35m(1,2 ft)

Changement de focale: Bague de zooming independante tournant sur un angle de 71 °46'; reperes de reference pour positions de focale a 35mm, 50mm et 70mm; changer de focale n'est pas possible en mode "Macro"

Mise au point: Bague de mise au point independante tournant sur un angle de 200° 55'

Fonction de mise au point macro: Lorsque le bouton de mise au point macro est actionne, la photographie rapprochee (jusqu'a 0,35m ou 1,2 ft) est possible

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Nikon Camera Lens Caracteristiques/Specifications, Focales 35~70mm Ouverture maximale f/3,5, Champ angulalre

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.

One of the standout features of Nikon lenses is their optical performance. The manufacturers employ Advanced Optical Technology, utilizing high-quality glass elements that minimize aberrations and enhance image clarity. Many lenses incorporate aspherical lenses that help to reduce distortion, producing sharp images even at wide apertures. Additionally, Nikon's Super Integrated Coating (SIC) enhances light transmission and reduces lens flare, ensuring vibrant colors and contrast in every shot.

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.

In addition to autofocus technology, many Nikon lenses support advanced features like Vibration Reduction (VR). This technology compensates for camera shake, resulting in sharper images even at slower shutter speeds or when shooting handheld. This feature is invaluable for low-light conditions or when using longer focal lengths.

The build quality of Nikon lenses is another element that distinguishes them. Typically constructed with durable materials, many lenses have a robust design that stands up to the rigors of professional use. Whether shooting in a studio or out in the elements, Nikon lenses are built to perform reliably.

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.