AF-S DX Zoom-Nikkor 12-24mm f/4G IF-ED (2.0x)

来源:百度文库 编辑:神马文学网 时间:2024/05/01 19:18:15







Click to enlarge




Click to view lens specs


Ultra-wideangle zoom lens for exclusive use with Nikon DX-Format digital SLR



2003 Release



Sample Image


Main Features



Specially designed and optimized for Nikon digital SLRs
Built-in SWM for ultra-fast, ultra-quiet AF operation
High optical performance by aspherical lenses and ED glass elements
M/A mode for quick switching between autofocus and manual operation
Lightweight and compact design





Specifications






Lens construction

11 elements in 7 groups (2 ED glass elements and 3 aspherical lenses)

Picture angle

99° - 61°

Focal-length scale

12, 15, 18, 20, 24mm

Number of diaphragm blades

7 (rounded)

Minimum f/stop

22

Closest focusing distance

0.3m (through the entire focal range)

Maximum reproduction ratio

1/8.3

Zoom control

Manual, via separate zoom ring

Macro focusing

N/A

Focus-limit switch:

N/A

M/A mode

Available

Focus lock button

N/A

Weight (approx.)

465g

Dimensions (approx.) (from the camera’s lens mounting flange)

82.5×90 mm

Lens cap

Snap-on

Lens hood

HB-23 (supplied)

Lens case

CL-S2 (optional)

Tripod collar

N/A

External front filter attachment frame

Does not rotate

External front filter

77mm

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-23

Infrared compensation scale

N/A

Supplied accessories

77mm snap-on front lens cap LC-77, Rear lens cap LF-1, Bayonet Hood HB-23

Aperture ring

N/A

Distance scale

Does have

Material of lens mount

Metal

Note:
* When using the D100 camera, check the focal length and shooting distance before taking flash pictures to prevent vignetting since the light emitted from the flash may be obstructed by the lens barrel.
* Vignetting may occur at 18mm or shorter focal length, and at 0.6m or shorter shooting distance.
* We do not recommend the use of DX NIKKOR lenses with 35mm (135) or IX240 format cameras.





MTF Chart


Wide Tele

Spatial Frequencies S: Sagittal M: Meridional
10 lines/mm
30 lines/mm
How to read the MTF chart





Lens Construction



: Aspherical lens elements: Super ED glass elements
: ED glass elements