Nikon 25446B D90 User's Manual - Page 295
Battery Life, Taking NEF RAW photographs
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D Battery Life The number of shots that can be taken with fully-charged batteries varies with the condition of the battery, temperature, and how the camera is used. In the case of AA batteries, capacity also varies with make and storage conditions; some batteries can not be used. Sample figures for the camera and optional MB-D80 multi-power battery pack are given below. • CIPA standard 1 One EN-EL3e battery (camera): Approximately 850 shots One EN-EL3e battery (MB-D80): Approximately 850 shots Two EN-EL3e batteries (MB-D80): Approximately 1700 shots six AA batteries (MB-D80): Approximately 600 shots • Nikon standard 2 One EN-EL3e battery (camera): Approximately 4200 shots One EN-EL3e battery (MB-D80): Approximately 4200 shots Two EN-EL3e batteries (MB-D80): Approximately 8400 shots six AA batteries (MB-D80): Approximately 1900 shots 1 Measured at 23 °C/73.4 °F (±2 °C/3.6 °F) with an AF-S DX NIKKOR 18-105mm f/3.5-5.6G ED VR lens under the following test conditions: lens cycled from infinity to minimum range and one photograph taken at default settings once every 30 s; after photograph is taken, monitor is turned on for 4 s; tester waits for exposure meters to turn off after monitor is turned off; flash fired at full power once every other shot. Live view not used. 2 Measured at 20 °C/68 °F with an AF-S DX NIKKOR 18-105mm f/3.5-5.6G ED VR lens under the following test conditions: release mode set to 9, autofocus mode set to AF-C, image quality set to JPEG basic, image size set to M (medium), white balance set to A, ISO sensitivity set to ISO 200, shutter speed 1/250 s, focus cycled from infinity to minimum range three times after exposure meters have been on for 3 s; six shots are then taken in succession and monitor turned on for 4 s and then turned off; cycle repeated once exposure meters have turned off. The following can reduce battery life: • Using the monitor • Keeping the shutter-release button pressed halfway • Repeated autofocus operations • Taking NEF (RAW) photographs • Slow shutter speeds • Using VR (vibration reduction) mode with VR lenses To ensure that you get the most from rechargeable Nikon EN-EL3e batteries: • Keep the battery contacts clean. Soiled contacts can reduce battery performance. • Use batteries immediately after charging. Batteries will lose their charge if left unused. n 275