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Title: Something you need extra of...
Review: I'm a semi-pro photographer, but you'd think I'd learn to keep these on hand. Nope. I didn't. So when the Lunar Eclipse came around, I didn't have any of these handy, and had to run out to the corner drug store for a pair of batteries.Not again. I'm going to have some spares I got from Amazon on hand for next time I want to use my camera.
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