Mounting The Lens - Canon AT-1 Instructions Manual

Handling the Lens Cap
The lens cap can be removed from the
front of the lens after pressing in the tabs on
both sides of the cap. The rear dust cap can be
removed by turning the Canon Breech-Lock
ring in the direction of the arrow. To attach
the dust cap, align its slot with the positioning
pin below the red dot of the Breech-Lock
ring, and press i t in. When the dust cap is
removed, the Breech-Lock ring i s locked.
Mounting the Lens
Remove the body cap. Make sure that the
aperture ring i s not set t o the "A" mark
before mounting the lens. Release the
aperture ring from the "A" mark by pushing
the
EE
lock pin and turn the ring. Then,
mount the lens by aligning the red dot of the
body with the red dot of the bayonet ring,
and then turning the Breech-Lock ring clock-
wise, pressing gently until
it
locks into
position. Reverse the procedure to dismount
the lens.