Nikon SB-800 instruction manual Non-TTL auto flash mode, Lock the CPU lens aperture at its minimum

Non-TTL auto flash mode

Auto Aperture B flash

The SB-800’s built-in sensor measures the flash illumination reflected from the subject and controls the flash output in combination with data automatically transmitted from the camera and lens to the SB-800, including the ISO sensitivity value and exposure compensation value as well as the aperture and focal length of the lens.

•Auto Aperture flash is available with cameras compatible with CLS, digital SLRs not compatible with CLS, cameras in Groups I and II when used with a CPU lens, and COOLPIX cameras compatible with i-TTL.

•Auto Aperture flash is automatically set (default setting) for the above camera/lens combinations. To cancel Auto Aperture flash and set to Non-TTL auto flash (p. 40), use Custom settings (p. 67).

1 Set the camera’s exposure mode to Programmed Auto (P) or Aperture-Priority Auto (A).

• If “FEE” appears on the camera’s LCD panel while the camera’s exposure mode is set to Programmed Auto (P), reset the exposure mode to Aperture-Priority Auto (A).

2 Lock the CPU lens aperture at its minimum.

• Not necessary with a G-type lens.

3 Press the a button to display B on the LCD panel.

4 While looking at the flash shooting distance range on the SB-800’s LCD panel, set the aperture on the camera when the camera’s exposure mode is set to “A”.

• Making exposure compensation on the SB-800 is also possible (p. 56).

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