Drawbacks for this camera, as far as I know :
1. Shooting above 8 MP resolution won't help you.
2. Though it offers higher ISO , in comparison to P510, it doesn't do good at all. Although pictures at higher ISOs do bear more noise. So under low lights , you may face a little problem with the picture quality. But fuji gives you the liberty to adjust all the settings to take out the best out of it.
Advantages of HS30EXr over P510 are:
1. Slightly bigger sensor. So you can expect the quality to be a little better. But I hav seen some pics taken by the other users & coolpix pics looks way better. But I always say, it depends on the person behind the lens.
2. Manual focus. Nikon dosn't have one. Considering focusing to be impotant, I'd say it's a disadvantage for P510.
