Canon EOS50D EOS 50D Instruction Manual - Page 28

Turning on the Power Checking the Battery Level When the power switch is set to or , the battery level will be indicated in one of four levels: z : Battery level is OK. x : Battery level is slightly down, but adequate power remains. b : Battery will be exhausted soon. n : Battery must be recharged. Battery Life [Approx. number of shots] Temperature At 23°C / 73°F At 0°C / 32°F Shooting Conditions No Flash 50% Flash Use 800 640 680 540 The figures above are based on a fully-charged Battery Pack BP-511A, no Live View shooting, and CIPA (Camera & Imaging Products Association) testing standards. The actual number of shots may be fewer than indicated above depending on the shooting conditions. Pressing the shutter button halfway for long periods or operating only the autofocus can also reduce the number of possible shots. The number of possible shots will decrease with more frequent use of the LCD monitor. The number of possible shots with the BP-514 is the same as indicated in the table. The number of possible shots with the BP-511 or BP-512 will be about 75% of the figures in the table for 23°C / 73°F. At 0°C / 32°F, the figures will be about the same as in the table. The lens operation is powered by the camera's battery. Using certain lenses can reduce the number of possible shots. Using the Image Stabilizer of the lens will decrease the number of possible shots (shorter battery life). For battery life with Live View shooting, see page 119. 28