Nikon D70s - Page 215

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Technical Notes—Specifi cations
Battery Life
The number of shots that can be taken with a fully-charged EN-EL3a battery (1500 mAh)
varies with the con di tion of the batteries, temperature, and how the camera is used.
The following measurements were performed at a temperature of 20 °C (68 °F).
Example 1: 2500 shots
Zoom Nikkor AF-S DX 18–70 mm f/3.5–4.5G IF ED lens; con tin u ous shoot ing mode;
con tin u ous-servo autofocus; image quality set to JPEG Basic; im age size set to M;
shutter speed ½
50 s; shut ter-re lease pressed half way for three sec onds and fo cus cycled
from infi nity to min i mum range three times with each shot; after six shots, mon i tor
turned on for fi ve seconds and then turned off; cycle re peat ed once exposure meters
have turned off.
Example 2: 500 shots
AF-S DX 18–70 mm f/3.5–4.5G IF ED lens; sin gle-frame shoot ing mode; single-ser vo
autofocus; image qual i ty set to JPEG Normal; im age size set to L; shut ter speed ½50 s;
shut ter-re lease pressed half way for fi ve seconds and fo cus cycled from infi nity to min-
i mum range once with each shot; built-in Speedlight fi red at full power with every
other shot; AF-assist illuminator lights when Speedlight is used; cycle re peat ed once
exposure meters have turned off; camera turned off for one minute with every ten
shots.
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
To ensure maximum battery performance:
• Keep the battery contacts clean. Soiled contacts can reduce battery performance.
• Use EN-EL3a batteries immediately after charging. Batteries will lose their charge if
left un used.