Nikon Nikon Df Product Manual - Page 387

Battery Life The number of shots that can be taken with a fully-charged EN-EL14a battery varies with the condition of the battery, temperature, and how the camera is used. Sample figures are given below. • CIPA standard 1: Approximately 1400 shots • Nikon standard 2: Approximately 2900 shots 1 Measured at 23 °C/73.4 °F (±2 °C/3.6 °F) with an AF-S NIKKOR 50mm f/1.8G (Special Edition) lens under the following test conditions: lens cycled from infinity to minimum range and one photograph taken at default settings once every 30 s. Live view not used. 2 Measured at 20 °C/68 °F with an AF-S NIKKOR 50mm f/1.8G (Special Edition) lens under the following test conditions: image quality set to JPEG basic, image size set to M (medium), shutter speed 1/250 s, shutter-release button pressed halfway for three seconds and focus cycled from infinity to minimum range three times; six shots are then taken in succession and monitor turned on for five seconds and then turned off; cycle repeated once standby timer expires. The following can reduce battery life: • Using the monitor • Keeping the shutter-release button pressed halfway • Repeated autofocus operations • Taking NEF (RAW) or TIFF (RGB) photographs • Slow shutter speeds • Using a GP-1or GP-1A GPS unit • Using an Eye-Fi card • Using a WU-1a wireless mobile adapter or WR-R10/WR-1 wireless remote controllers • Using VR (vibration reduction) mode with VR lenses To ensure that you get the most from rechargeable Nikon EN-EL14a 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 367