Pentax 67 Operating Manual page 13

2. Align the red indexes on the camera and
lens, and turn the lens clockwise. The lens
will be locked in place with a click.
• When an automatic diaphragm lens has
been attached on the camera before
mounting the TTL pentaprism, remove
the lens and remount it. This is for set¬
ting the coupling pin of the TTL penta¬
prism with the camera's diaphragm
coupling slide.
3. To detach the lens, turn the lens counter¬
clockwise while pressing the lens release
lever.
• When the lens is dismounted, attach the
caps onto the lens and camera to prevent
dirt from getting in the mechanism.
9