Nikon SB-800 Marine Instruments User Manual


 
27
Setting the zoom-head position manually
When the SB-800 is used with cameras in Groups III to VII in combination with
a non-CPU lens, or you want to change the zoom-head position to one that
does not match the focal length, you should adjust the zoom-head position
manually.
•Press the c button to move toward a wideangle setting and the d button to move
toward a telephoto setting.
•A small M above the “ZOOM” indication appears on the LCD panel while manually
setting the zoom-head position.
When the camera/lens combination is compatible with the power zoom function, the
zoom-head position changes as follows, when a 35mm lens is attached:
M24mm ±∞ M28mm ±∞ 35mm ±∞ M50mm ±∞ M70mm±∞ M85mm ±∞ M105mm
Generally, set the zoom-head position to the focal length of the lens in use or to the
closest wideangle setting. For example, select the 50mm setting when using a
60mm lens.
t Canceling the power zoom function using Custom settings
The power zoom function can be canceled in the Custom settings mode (p. 67).
When the power zoom function is canceled, the zoom-head can be manually
adjusted, but the zoom-head position indicator does not change even if the
lens is zoomed, a lens is changed, or the b button is pressed.
When the power zoom function is canceled, a small appears on the LCD panel.
•Press the
c button to move toward a wideangle setting and the d button to move
toward a telephoto setting. The zoom-head position changes as follows:
24mm ±∞ 28mm ±∞ 35mm ±∞ 50mm ±∞ 70mm ±∞ 85mm ±∞ 105mm
t Using the built-in wide-flash adapter/Nikon Diffusion Dome
Use the built-in wide-flash adapter when a 14mm to 23mm lens is mounted
(p. 104).
The power zoom function becomes inactive when using the wide-flash adapter. Press
the
c or d button to adjust the zoom-head position to 14mm or 17mm.
The zoom-head position is automatically set at 14mm when the Nikon Diffusion Dome is
attached (p. 101).
Generally, when using a 14mm or 17mm lens, the distance between the camera and
subject differs much from the center of the frame to the periphery, so the peripheral area
might not be sufficiently lit in some cases. The same is true when using the Nikon
Diffusion Dome.
Basic operation