When this happens, the batteries may not work consistently and the flash will fail to go off. For successful flash operation, clean the battery and equipment contacts with a clean cloth or a water-dampened cotton swab. It's a good idea to start your trip with new batteries and to take a spare set with you. Refer to your camera manual for the size and type of batteries your camera needs. To help you remember places and names, take a notebook and jot down facts about the pictures you take.
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