Setting The Shutter Speed Dial - Pentax MX Manual

SETTING THE SHUTTER SPEED DIAL
Turn the shutter speed dial clockwise or counter-clockwise to the
shutter speed desired. The shutter speed may be set either before or
after cocking the rapid-wind lever. As you cock the shutter by
turning the rapid-wind lever, the "cocked" indicator turns red
showing that the shutter Is cocked. The color of the cocked indicator
changes to black after tripping the shutter. For use of the X setting
on the shutter speed dial, refer to page 18,
With the shutter speed dial set on B (bulb), the shutter will stay
open as long as you depress the shutter button. As you release your
finger from the shutter button, the shutter closes. When a long
exposure is desired while using the B setting, set the shutter button
lock by moving the lever to the (eft {an "L" becomes visible) while
depressing the shutter button. Alternately, use a cable release with a
locking device for a time exposure.
f CAUTION
At long speeds, longer than 1/30 (1/15-1 sec., B), support your
camera rigidly to prevent camera movement. To protect the shutter
mechanism, trip the shutter before putting the camera away for any
extended period.
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