Canon t70 - Manual (Page 60)

(3) How \o choose a shutter speed
The base lunction of shutter speed i$ ic ost oor*
(cct exposure, bul can also use it to control
me expressb'> ol your $ub|ecrs motion and to
control tneetfeci of camera movomont
Your pictures y/ill not be sharp if the camera
moves v^hen you press Ihe shutter button. This
IS referred to as 'camera'Shoko*. Generally, for
handheld shooting, do not select a shutter
speed vihich i$ smaller man me focal length ol
the lens. For handheld shoolihg with
a SO mm
lens, for instance, set a shutter speec of V60
second or faster, with
a ICO mm lens, at 'east
1/12S second or faster. If this is rot possible,
use a triped and cable re ease to avoid camera-
Shake.
• With a viice-angfe Oess than £0 mm) lens, it
may be possible to use shutter speeds slight­
ly slower than w€0 second lor handhold
snooting.
When using rzo tn me programmed
AE rrodes. the camoro-shake wami^ i$ a ;
slowly blinking (olinks at 2 Hz).
I
ii'iOCOsas
A. Freezing Motion
Usually shutter speed is chesen tc freeze Iho
subject motion. The foster me subject is
movmg the higher m.e shutter soood roQutred
to stop me action.
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