Canon A-1 Instructions Manual page 15

Reattachme nt
1. Make sure the mount ring is locked so
Lhat it cannot be turned.
2. Align the arrow on
~he
cap with the
red dot on the mount rmg.
3. In that position, push lightly down on the
cap and tum the mount ring counter-
clockwise until it is tight.
- 15-
Lens Hood
When shooting imo bright light, light rays
entering the lens may form defects or: the
imaae called ghost and flare. Attaching a
hood onto the lens helps to prevent this.
Bayonet-mount hoods are available as op-
t ional accessories for most Canon lenses.
Please use only that hood which is specified
for the lens concerned. This ty p e of hood
fits into t he bayonet mount at the front of
the l ens where it is fixed by turning until it
is tight. Some hoods for wide-angle le'.1ses
require propei· positioning before mounting.
Align the red dot on this type of hood with
the notch in the bayonet mount at the front
of the lens. Then lightly push the hood in
LO
the mount and tum it until it is tight.
When not in use, the hood can be mounted
in reverse on a standard or some wide-angle
lenses, in which case even the hood will fit
perfectly into the camera's case.