Pentax MX User Manual

SHUTTER BUTTON LOCK
The shutter button lock lever is for your
convenience while you are making a particularly
long exposure using the B shutter speed setting.
After depressing the shutter button^ turn the lock
lever (which is on the collar at the base of the
shutter button) so that the letter "L" is visible.
When the exposure time is up, move the lock
lever back to its original position. This
automatically releases the shutter button. In
addition to making "Time"' exposure, the lock
lever is also used to turn off the meter circuit and
simultaneously prevent accidental release of the
shutter.
24 ®

Pentax MX Specifications

General

Film Format	35mm
Lens Mount	Pentax K mount
Exposure Modes	Manual
Focus	Manual
Camera Type	SLR
Shutter Speed	1 to 1/1000 second, plus B
Metering	Center-weighted