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Photos et spécifications Nikon 24-85mm f/2.8-4D IF AF Zoom-Nikkor |
Facilité d'utilisation
.82.5mm(..:............ .....)....93.5mm ..(..): .545g You are now the proud owner of the AF Zoom-Nikkor 24–85mm f/2.8–4D IF, a lens that will provide you with years of exciting picture-taking opportunities. Before using this lens, please read these instructions and the notes on safety operations in your camera’s instruction manual. Also, keep this manual handy for future reference. Major features • Autofocus operation is possible with Nikon autofocus cameras (except the F3AF); manual focus possible with all Nikon SLRs. • Thanks to its internal focusing (IF) system, there is no change in the overall length of the lens from infinity to its closest focusing distance of 0.5m (1.6 ft.). In the macro range, this range extends to approx. 0.21m (0.7 ft.) with a maximum reproduction ratio of 1:2. In addition, outstanding image quality is provided through the use of an aspherical lens element, while a 9-bladed diaphragm creates a naturally blurred background when using either wide apertures and/or telephoto zoom settings. Macro focusing is possible within the 35–85mm range. • For more accurate exposure control, subject distance information is transmitted from the lens to the camera body, providing 3D Matrix Metering and 3D Multi-Sensor Balanced Fill-Flash with appropriate Nikon cameras and Speedlights. Important! • Be careful not to soil or damage the CPU contacts. • Do not attach the following accessories to this lens, as they might damage the CPU contacts: Auto Extension Ring PK-1, PK-11 (use PK-11A), Auto Ring BR-4 (use BR-6 with BR-2A) and K1 Ring. Other accessories may not be suitable when this lens is used with certain camera bodies. For details, refer to instruction manual for each product. • This lens is not compatible with a Nikon F3AF camera when the AF Finder DX-1 is attached. • At a telephoto setting, slight vignetting may occur when shooting subjects with the macro switch set to MACRO (at a reproduction ratio of approx. 1:2). Focusing, zooming and depth of field With Nikon autofocus cameras (except the F3AF), first turn the zoom ring until the desired composition is framed in the viewfinder before performing autofocus. For manual focus, focusing is possible at any focal length, but is easier at longer focal lengths, because the image is larger and depth of field is shallower. If your camera has a depth of field preview (stop-down) button or lever, depth of field can be observed while looking through the camera viewfinder. Due to the optical characteristics of this lens, the focused distance varies as the focal length changes when taking close up pictures. Therefore, perform autofocus or manual focus after zooming in or out using an autofocus mode other than in C (Continuous Servo AF). Macro focusing (Fig. A) Normal focus extends from infinity (.) to 0.5m (1.6 ft.). When the macro switch is set to MACRO, the lens will focus down to approx. 0.21m (0.7 ft.). Macro focusing is possible within the 35–85mm range. The macro range is indicated by an orange line on the lens barrel. A maximum reproduction ratio of approximately 1:3.6 is obtained at the 35mm setting, while a reproduction ratio of 1:2 is possible at 85mm. When moving the macro switch back to NORMAL, make sure the focus ring is set between infinity (.) and 0.5m (1.6 ft.). Recommended focusing screens (Table 1) Various interchangeable focusing screens are available for certain Nikon SLR cameras to suit any type of lens or picture-taking situation. Those recommended for use with this lens are listed in the table. Minimum aperture lock (Fig. B) For programmed auto or shutter-priority auto exposure shooting, use the minimum aperture lock lever to lock the lens aperture at f/22. 1. Set the lens to its minimum aperture (f/22) by aligning it with the aperture index. 2. Slide the lock lever toward the aperture ring, so the two orange dots are aligned. To release the lock, slide the lever in the opposite direction. Variable aperture/two aperture indexes (Fig. C) Zooming the lens from 24mm to 85mm decreases the maximum aperture approx. 1 f/stop. For cameras with TTL metering, there is no need to adjust the aperture. Likewise, for TTL auto flash photography with Nikon Speedlights, no adjustment is required. However, when the flash-to-subject distance approaches either the near or far limit of the automatic shooting range, the aperture may need to be adjusted slightly. When using a separate exposure meter or taking photographs in the non-TTL flash mode, select the appropriate aperture index according to the focal length setting in the following way: The aperture index (line) is used for the 24mm focal length setting and the dot for the 85mm setting. Click stops are provided at the aperture index (line) for each aperture setting. For zoom settings between 24 and 85mm, align the aperture ring between the two indexes to obtain the best overall exposure. To determine the correct aperture, refer to Fig. C–Relationship between focal length and maximum aperture. Takin...