Canon 2011B002 EOS-1Ds Mark III Instruction Manual - Page 102

Bulb Exposures When bulb is set, the shutter stays open while you hold down the shutter button completely, and closes when you let go of the shutter button. This is called bulb exposure. Use bulb exposures for night scenes, fireworks, the heavens, and other subjects requiring long exposures. 1 Select "buLb". Press the button and turn the dial to select "buLb". 2 Set the desired aperture. While looking at the top LCD panel, turn the dial. c 3 d e Take the picture. Press the shutter button completely. X The elapsed exposure time will be displayed on the top LCD panel. 1: min. 2: sec. 3: hour Since bulb exposures produce more noise than usual, the image might look rough or grainy. For bulb exposures, using Remote Switch RS-80N3 or Timer Remote Controller TC-80N3 (both sold separately) is recommended. When C.Fn II -1 [Long exp. noise reduction] is set to [1:Auto] or [2:On], noise generated by the bulb exposure can be reduced. (p.163) U LCD Panel Illumination Each time you press the button, the illumination of the top and rear LCD panels will turn on or off (9). During a bulb exposure, pressing the shutter button completely will turn off the LCD panel illumination. 102