How To Choose A Shutter Speed - Canon AE-1 PROGRAM Instructions Manual

15. How to Choose a Shutter Speed
The shutter controls exposure by the length of
time it remains open .
The basic function of shutter speed is to get
correct exposure, but you can also use it to con -
trol the expression of your subject's motion and
to control the effect of camera movement.
Blurring part of the picture can heighten the
sense of action . In most cases, however, image
blur is undesirable. To avoid blurred pictures
from camera movement. use a shutter speed of
at least 1/ 60 second for handheld shooting with
a standard (50 mm) lens. Even higher speeds are
necessary with a telephoto lens. See pp.45-46 .
I wonder what 150/ ASA film
speed is.
Oh, I forgot to tell you. I asked our
film dealer about that. He told me
that the higher the film's 150/
ASA speed, the less the light it
needs for exposure.
43
That
with a higher film
speed we can shoot in
lower light or use
faster shutter speeds.
Good work!