Flash Photography Support Functions

AF-assist illumination

When light is too low for normal autofocus operation, the SB-700’s AF-assist illumination enables autofocus photography.

The SB-700’s AF-assist illumination is compatible with the multi-point AF system.

AF-assist illumination cannot be used with cameras that are not compatible with CLS and COOLPIX cameras.

Notes on using the AF-assist illumination

Functions

AF-assist illumination can be used if an AF lens is mounted and the

 

camera’s focus mode is set to S (single-servo AF with focus priority),

 

 

 

 

AF-A, or AF.

 

• The effective flash-to-subject distance with AF-assist illumination

 

 

is approx. 1 m to 10 m (3.3 ft. to 33 ft.) for the center of the

E

 

image with a 50 mm f/1.8 lens. The flash-to-subject distance varies

 

depending on lens in use.

 

• Suitable lens focal length is between 24 mm and 135 mm. Focus

 

 

area in which autofocusing is possible is:

 

 

D7000 camera focus area with the focal length range of

 

 

between 24 mm and 135 mm

 

 

 

 

 

 

 

 

E–27

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Image 118
Nikon SB-700, SB 700 user manual AF-assist illumination, Between 24 mm and 135 mm