Negative Positive
Title: Great concept, but...
Review: I am a new owner of a Nikon 8400 camera (a great item, by the way). I like the MB-CP10 Battery Pack for taking vertical photos. It adds body and convenience to the camera. However, I was disappointed to find out that it is not a supplemental battery. The user must either use the camera battery OR the CP-10. So, if you are using this item for taking vertical pictures...understand that you will only be using the "AA" batteries, which burn up pretty fast.
Is the review positive or negative? 