The MC-20 have a basic shutter release button as on the MC-30, but for long exposures you can set the desired shutter speed on the remote (up to 9 hours, 59 minutes, 59 seconds), then press the button. It also supports a timer mode that will count up starting when the shutter is pressed.
1. Normal mode : It is possible to perform either single-frame or continuous shooting, depending on the film advance mode set on your camera. (For detail, see camera's instruction manual.)
2. Long-Time Exposure mode(long-time exposure mode with electric beeper) : Press H(hour), M(minute) and S(second) buttons to set desired exposure time. The exposure time can be set for a maximum of 9 hours 59 minutes and 59 seconds.
3. Time mode (time mode with electric beeper) : The time display begins counting up indicating the exposure time when fully depress shutter release button.
Timer display : 7-segments per digit, 5digits
Mode display : LONG EXP ,TIME and - - - ( normal mode)
Electric beeper: Emits sound during long-timer exposure or time mode
LCD illumination : LCD illumination button
Battery duration : Approx.80 hours( when shutter release button is pressed )
Power source: Lithium battery CR2032
Length : Approximately 80cm or 31.5 inches
Weight: 56g( without battery )