Canon A2 - Manual (Page 31)

Precautions
Interruptions in Winding Due to Reduced Battery Power
When the batteries are almost exhausted and it takes over
one second for one frame of the film to be wound, the bat­
teries must be replaced after the main switch has been
turned off. Also check the power of the battery in the camera.
If the camera’s battery has insufficient power, the winder will
not function.
* When the Power Winder A2’s batteries are exhausted, re­
place them with four new ones of the same type.
Avoiding Blurred Images
When a telephoto lens is in use, slight vibration may cause
image blur. To avoid possible blurred images during hand­
held shooting, the minimum shutter speed should be faster
than the reciprocal of the focal length of the lens. For a
100mm lens, for instance, use a shutter speed of 1 /1 25 sec.
or faster. Even when a tripod is used, choose the fastest
shutter speed possible.
Use of the Power Winder A2 in Cold Climates
In very low temperatures, the batteries' power is reduced
and regular photography cannot be performed. Under these
conditions, it is best to carry a spare set of batteries in an
inside pocket to keep them warm.
Ni-Cd batteries are also recommended as an effective power
source in low temperatures.
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