Nikon SB 900 User Manual - Page 19
What is the Nikon Creative Lighting System CLS? - used
UPC - 182080480764
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What is the Nikon Creative Lighting System (CLS)? About the SB-900 The SB-900 features the Nikon Creative Lighting System (CLS). This system offers additional flash shooting possibilities with digital cameras by taking advantage of your camera's digital communication capabilities. CLS is available when the SB-900 is used with compatible Nikon cameras. B The SB-900 offers these major features: ■ i-TTL mode This is a Nikon Creative Lighting System TTL auto flash mode. Monitor pre-flashes are fired at all times. The subject is correctly exposed by the light from the flash lighting and the exposure is less affected by ambient light (kD-2). ■ Advanced Wireless Lighting With Advanced Wireless Lighting, wireless multiple flash operation in the TTL (i-TTL) mode can be accomplished with CLS-compatible digital SLRs. In this mode, you can divide the remote flash units into three groups and control the flash output independently for each group, expanding your range of creative multiple-flash shooting techniques (kD-43). ■ FV Lock (Flash Value Lock) Flash Value, or "FV," is the amount of flash exposure for the subject. Using FV Lock with compatible cameras, you can lock in the appropriate flash exposure for the main subject. This flash exposure is locked in, even if you change the aperture or composition, or zoom the lens in and out. (kD-55). ■ Flash Color Information Communication When the SB-900 is used with compatible digital SLRs, color temperature information is automatically transmitted to the camera. In this way, the camera's white balance is automatically adjusted to give you the correct color temperature when taking photographs with the SB-900. ■ Auto FP High-Speed Sync High-Speed flash synchronization at a compatible camera's highest shutter speed is possible. This is useful when you want to use a wider aperture to achieve shallow depth of field to blur the background (kD-55). ■ AF-Assist illuminator In autofocus operation, the SB-900 emits AF-Assist illumination, which matches the wider AF area of CLS-compatible cameras. With cameras supporting this function, autofocus photography in dim lighting is possible even when the camera's focus point (focus area) is changed (kD-58). B-3