Nikon D300s Webcam User Manual


 
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Non-CPU Lenses
By specifying lens data (lens focal length and maximum aperture),
the user can gain access to a variety of CPU lens functions when
using a non-CPU lens (0 342).
If the focal length of the lens is
known:
Power zoom can be used with SB-900, SB-800, and SB-600 flash
units (available separately)
Lens focal length is listed (with an asterisk) in the playback photo
info display
When the maximum aperture of the lens is known:
The aperture value is displayed in the control panel and
viewfinder
Flash level is adjusted for changes in aperture
Aperture is listed (with an asterisk) in the playback photo info
display
Specifying both the focal length and maximum aperture of the
lens:
Enables color matrix metering (note that it may be necessary to
use center-weighted or spot metering to achieve accurate results
with some lenses, including Reflex-NIKKOR lenses)
Improves the precision of center-weighted and spot metering
and i-TTL balanced fill-flash for digital SLR
A Focal Length Not Listed
If the correct focal length is not listed, choose the closest value greater
than the actual focal length of the lens.
A Zoom Lenses
Lens data are not adjusted when non-CPU lenses are zoomed in or out.
After changing the zoom position, select new values for lens focal
length and maximum aperture.