AF Zoom-Nikkor 24-85mm f/2.8-4D IF (3.5x)
来源:百度文库 编辑:神马文学网 时间:2024/10/04 03:41:59
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High-performance standard zoom lens for landscapes to portraits
2000 Release
Main Features
Fast f/2.8 maximum aperture at 24mm focal length
Provides maximum 1:2 reproduction ratio from 35-85mm
Hybrid and molded-glass aspherical lens elements for higher optical performance
Nine-blade rounded diaphragm achieves a natural blur for out-of-focus elements
Specifications
Lens construction
15 elements in 11 groups (2 aspherical lenses)
Picture angle
84° - 28°30' [61° - 18°50' with Nikon digital cameras (Nikon DX format)]
Focal-length scale
24, 28, 35, 50, 70, 85mm
Number of diaphragm blades
9 (rounded)
Minimum f/stop
22
Closest focusing distance
0.5m (0.21m at 85mm focal length and macro setting)
Maximum reproduction ratio
1/5.9 (1/2 at 85mm focal length and macro setting)
Zoom control
Manual, via separate zoom ring
Macro focusing
Selectable via the macro switch
Focus-limit switch:
N/A
M/A mode
N/A
Focus lock button
N/A
Weight (approx.):
545g
Dimensions (approx.) (from the camera’s lens mounting flange)
78.5×82.5 mm
Lens cap
Snap-on
Lens hood
HB-25 (supplied)
Lens case
CL-S2 (optional)
Tripod collar
N/A
External front filter attachment frame
Does not rotate
External front filter
72mm
Slip-on filter
N/A
Built-in/rear filter
N/A
Circular polarizing filter
Usable.
Circular polarizing filter II
Usable, even with dedicated Lens Hood HB-25
AF-3
Usable, but vignetting may occur at ∞ (infinity) setting, or macro at wideangle setting. (0)
AF-4
Usable. (0): ( ) Indicates maximum number of usable hoods (HN-36 for AF-3/HN-37 for AF-4).
Infrared compensation scale
Only for 24mm focal length
Supplied accessories
72mm snap-on front lens cap, Rear lens cap LF-1, Bayonet Hood HB-25
Aperture ring
Does have
Distance scale
Does have
Material of bayonet ring
Metal
Note:
MTF Chart
Wide Tele
Spatial Frequencies S: Sagittal M: Meridional
10 lines/mm
30 lines/mm
Lens Construction