会员
级别: 小学四年级
积分: 247
发帖数: 236
注册日期: 2008-01
来自: 中国, 北京, 北京
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[分享]关注新一代“超级神灯”——SB-900！内附详细官方参数资料。
Overview：
Professional i-TTL Speedlight compatible with Nikon FX and DX format SLRs, and part of the Nikon Creative Lighting System. This powerful Speedlight offers photographers extensive creative opportunities for their flash photography. Three illumination patterns - Centre-weighted, Even and Standard - provide total control over flash coverage and it covers a class-leading auto zoom range of 17-200mm in just 1.2 seconds. Advanced features include a booster circuit that enables high-speed recycling using four AA-type batteries and a built-in thermal protection system to warn of excessive heat build up. The SB-900 can automatically detect the presence of a fluorescent or incandescent color filter and transmit this information to the attached camera’s white balance setting, and its firmware can be upgraded via the camera body.
Key Features
·Professional i-TTL (intelligent TTL) Speedlight compatible with FX and DX format SLR cameras.
（专业的i-TTL闪光灯，适用于FX和DX画幅的单反相机）
·Compatible with the Nikon Creative Lighting System.
（兼容CLS 创意闪光系统）
·Centre-weighted, Even and Standard illumination patterns: Centre-weighted mode concentrates illumination to the centre of the frame, useful when using a telephoto lens. Even mode diffuses light evenly across the frame, useful when taking group shots. Standard mode offers a standard balance of power and light distribution.
（中央重点、平均、标准三种闪光模式：中央重点可以将闪光集中于幅面的中心部分，这在使用长焦镜头时非常有用；平均模式可以在集体照时将整个幅面全部照亮；标准模式，将提供一个平均的力量输出）
·17-200mm auto zoom range: covered in just 1.2 seconds. 14mm zoom range when using built-in diffuser or Speedlight dome.
（17-200mm自动变焦范围：变焦用时只需1.2秒。在使用内置散光片或者Speedlight dome应该就是柔光罩时，焦距为14mm）
·Automatic detection of sensor format: automatically recognises FX or DX format cameras.
（自动检测传感器格式：自动识别全幅或DX格式相机）
·High-speed recycling time of 2.2 seconds, using four AA-type batteries.
（高速回电，使用4节AA电池回电只需2.2秒）
·Intuitive interface with large LCD screen and 3 all-purpose switches that can be individually configured.
（直观的大屏幕LCD操作界面，以及3个可定制的全功能按键）
·AF-Assist illumination: compatible with Multi-CAM3500 FX / DX AF sensors.
（自动对焦辅助照明：可配合Multi-CAM3500对焦系统的全幅及DX相机使用）
·Bounce capability: rotates horizontally 180°; to right and left, tilts up to 90°; and down to 11°.
（跳闪：水平180度；向左、向右，向上90度；向下11度。）
·Thermal protection system: programmable to warn of excessive heat build up during high intensity firing.
（过热防护系统：可定制高强度闪光是过热警告）——注：这个我不是很明白
·Automatic filter detection: Speedlight automatically adjusts the attached camera’s white balance settings when a fluorescent or incandescent color filter is used.
（自动滤镜检测：当使用荧光或者白炽光滤镜时，闪灯可以自动调节相机的白平衡设置。）
·Firmware can be upgraded via the storage media in the attached camera.
（可以通过相机中的存储卡升级闪光灯的固件Firmware）
Specifications：
Electronic construction：
Automatic Insulated Gate Bipolar Transistor (IGBT) and series circuitry
Guide number (20°C/68°F)：
34/111.5 (ISO 100, m/ft), 48/157.5 (ISO 200, m/ft)
Illumination pattern：
Three illumination patterns: standard, even and center-weighted
The light distribution angle is automatically adjusted to the camera’s image area in both FX and DX formats
Flash shooting distance range：
0.6 m to 20 m (2 to 66 ft) (varies depending on camera image area setting, illumination pattern, ISO sensitivity, zoom position, and lens aperture)
Flash mode：
TTL, Auto Aperture flash, Non-TTL auto flash, Distance-priority manual flash, Manual flash, Repeating flash
Other functions：
Test firing, monitor pre-flashes, AF-assist illuminator, and Modeling illuminator
Multiple flash operation：
Advanced Wireless Lighting, SU-4 type wireless multiple flash
Compatible cameras：
All cameras compatible with Nikon Creative Lighting System (other cameras can be used but functionality is reduced)
Flash exposure control set on the camera：
Camera’s sync modes: Slow-sync, Red-eye reduction in slow-sync, Rear-curtain sync, Rear-curtain slow-sync
Shooting functions:
Auto FP High-Speed sync, FV Lock flash
Bounce capability：
Flash head tilts down to -7° or up to 90° with click-stops at -7°, 0°, 45°, 60°, 75°, 90°
Flash head rotates horizontally 180° to the left and right with click-stops at 0°, 30°, 60°, 90°, 120°, 150°, 180°
ON/OFF：
Press the Power ON-OFF switch to turn the SB-900 on or off
Standby function can be set
Power source/min. recycle time/no. of flashes (at full output)：
With fresh batteries (These data may vary depending on battery condition)
Two AA-size penlight batteries (1.5V or lower) of the following types (Batteries : Min. recycle time (approx.) / Min number of flashes / interval between full flash output and ready light on *) :
- Alkaline-manganese (1.5V) : 4.0 sec. / 110 / 4.0-30 sec.
- Lithium (1.5V) : 4.5 sec. / 230 / 4.5-120 sec.
- Oxyride (1.5V) : 3.0 sec. / 125 / 3.0-30 sec.
- Ni-MH (2600 mAh) (rechargeable) (1.2V) : 2.3 sec. / 190 / 2.3-30 sec.
* When firing the Speedlight at full output once every 30 seconds (120 seconds with lithium batteries.)
Ready light：
The SB-900 is fully recycled: Rear ready-light lights up and front light blinks
Insufficient light for correct exposure (in i-TTL, Auto Aperture flash, Non-TTL Auto flash, or Distance-priority manual flash operations): ready-lights and front lights blink after shooting
Flash duration：
Approx. 1/880 sec. at full output
Mounting foot lock lever：Provides secure attachment of SB-900 to camera’s accessory shoe using locking plate and mount pin to prevent accidental detachment.
Dimensions (W x H x D)：
Approx. 78.0 x146.0 x 118.5 mm (3.0 x 5.7 x 4.7 in.)
Weight (without batteries)：
Approx. 415 g (14.6 oz.)
Supplied accessories：
Speedlight Stand AS-21, Nikon Diffusion Dome SW-13H, Color Filter Set SJ-900, Color Filter Holder SZ-2, Soft Case SS-900
Optional accessories：
Color Filter Set SJ-3, Water Guard WG-AS1/WG-AS2/WG-AS3, High-Performance Battery Pack SD-9, Wireless Slave Flash Controller SU-4, TTL Remote Cord SC-28/SC-29
自由的飞 上传了这个图片:
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摄影…从心…
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