Handling the lens cap, Mounting the lens – Canon AT 1 User Manual
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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 cover can
be removed by turning the Canon Breech-
Lock ring in the direction of the arrow. To
attach the dust cover, align its slot with the
positioning pin below the red dot of the
Breech-Lock ring, and press it in. When the
dust cover is removed, the Breech-Lock
ring is locked.
Mounting the Lens
Remove the body cap. Make sure that the
aperture ring is not set to 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.