Pentax L specifications 140, Using the p Bulb Mode, Set the mode dial to p

140

5 FunctionReference

About the LButton

The aperture and shutter speed are automatically adjusted to the appropriate exposure at that moment if the Lbutton is pressed in a (Manual) mode.

You can choose from the following three adjustment methods in [AE- L bttn on M expsr] in the [ACustom] menu.

1	Program Line The aperture and shutter speed are adjusted automatically.
2	Tv Shift	The aperture is locked and the shutter speed is adjusted
		automatically.
3	Av Shift	The shutter speed is locked and the aperture is adjusted
		automatically.

Shutter speed is adjusted to appropriate exposure according to lens aperture when lens aperture is not set to s position.

1 Notes on [Using Aperture Ring] (p.180)

Using the p (Bulb) Mode

This mode is useful for the long exposures required for shooting night scenes and fireworks.

1 Set the mode dial to p.

• Turn the e-dial to adjust the aperture value.

•Set the aperture value in increments of 1/2EV or 1/3EV. Set in [Expsr Setting Steps] in the [ACustom] menu. (p.142)

•Use a sturdy tripod and the cable switch CS-205 (optional) to prevent camera shake when using p (bulb) mode. Connect the cable switch to the cable switch terminal (p.15).

•Bulb shooting is available when using the remote control shooting mode (p.59). The shutter remains open as long as the optional remote control’s shutter release button is held down.

•Noise reduction is a process to reduce noise (image roughness or unevenness) caused by low shutter speed. Set in [Noise Reduction] in the [ACustom] menu. (p.100)

•When in p (Bulb) mode, the sensitivity is equivalent to ISO 200 when sensitivity is set to [AUTO].