Tips For Setting Exposure - Nikon coolpix A900 Reference Manual

Tips for Setting Exposure

The sense of dynamism and amount of background defocus in subjects vary by
changing the combinations of shutter speed and f-number even if the exposure is the
same.
Effect of the Shutter Speed
The camera can make a fast-moving subject appear static at a fast shutter speed, or
highlight the motion of a moving subject at a slow shutter speed.
Effect of the F-number
The camera can bring the subject, foreground and background into focus, or blur the
subject's background intentionally.
Small f-number
(larger aperture)
C
Shutter Speed and F-number
The control range of the shutter speed differs depending on the zoom position, f-number,
or ISO sensitivity setting.
The f-number of this camera also changes depending on the zoom position.
When zooming is performed after the exposure is set, exposure combinations or the
f-number may be changed.
Large apertures (expressed by small f­numbers) let more light into the camera, and small
apertures (large f-numbers) let less light. The smallest f-number represents the largest
aperture, and the largest f-number represents the smallest aperture.
Shooting Features
A, B, C, and D Modes (Setting the Exposure for Shooting)
Faster
1/1000 s
f/3.4
Slower
1/30 s
Large f-number
(smaller aperture)
48
f/8