Nikon 1540B Digital Camera User Manual


 
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P, S, A, and M Modes
P, S, A, and M modes offer different degrees of control over shutter
speed and aperture.
A Lens Types
When using a CPU lens equipped with an aperture ring (0 287), lock the aperture ring at the
minimum aperture (highest f-number).
Type G and E lenses are not equipped with an
aperture ring.
Non-CPU lenses can only be used in modes A (aperture-priority auto) and M (manual), when
aperture can only be adjusted using the lens aperture ring.
Selecting any other mode
disables the shutter release.
A Non-CPU Lenses (0 285)
Use the lens aperture ring to adjust aperture.
If the maximum
aperture of the lens has been specified using the Non-CPU lens
data item in setup menu (0 172) when a non-CPU lens is attached,
the current f-number will be displayed in the viewfinder and
control panel, rounded to the nearest full stop.
Otherwise the
aperture displays will show only the number of stops (F, with
maximum aperture displayed as FA) and the f-number must be
read from the lens aperture ring.