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THE CORRECT AMOUNT OF LIGHT
To expose a picture correctly a particular amount
of light is necessary. For that the camera has two
possibilities to control the amount of light. Either
the aperture can be changed or the exposure
time can be varied.
WITHOUT ANTI-SHAKE
Rule of thumb to calculate the longest safe shutter
speed without Anti-Shake:
For example, when taking a picture with a lens
of focal length 250 mm without Anti-Shake:
the longest safe shutter speed is =
1/250 mm = 1/250 s
Despite autofocus it is still possible that pictures
may be blurred. Often it is not the fault of the
autofocus system but rather the result of camera
shake. Unfortunately camera shake happens
frequently and it is a particular problem when
using slower shutter speeds and longer focal
lengths.
However, Konica Minolta’s Anti-Shake puts things
right. The high precision CCD-shift process applies
a unique stabilizing mechanism. A sensor detects
the degree of camera shake and the camera is
able to compensate for this shake by shifting the
CCD.
1
focal length (in mm)
s
The Anti-Shake System instantly and precisely shifts the CCD
to compensate camera motion. (Shutterspeed example picture
1/30 sec)
The Anti-Shake unit compensates
the camera shake by shifting the CCD.
PHOTOKNOWLEDGE – ANTI-SHAKE