Ok. I'm a complete camera amateur myself, so be aware of that before you take any of my advice...
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I looked over the camera on dpreview.com. One of the knocks on the camera is poor focusing in dim light. Point & Shoot camera's don't have the biggest sensors in them, which results in not being able to take the best low light images (as compared to something like a DSLR).
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There's no manual settings of any kinds, so you have to work with the auto features. That might be what the problem is in the photo you posted. I think your best bet would be to retake the shot with brighter light (such as sunlight). Otherwise, you may need to use trial and error to see if any other auto setting works better.
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Here's the quick conclusion from dpreview.com:
Conclusion - Pros:
•Good value for the money
•18X, 25 - 450 mm optical zoom lens in a compact, generally well-built body
•Optical image stabilization
•Sharp 3-inch LCD display with 921k pixels
•Fast autofocus in good light
•GPS receiver with compass and large landmark database
•Scene Auto Selector picks a shooting mode for you
•Plenty of scene modes and special effects
•Wide selection of burst modes, some of which are pretty good
•Redeye not a problem
•Full HD movie mode with stereo sound, use of optical zoom and image stabilizer, and full-time autofocus
Conclusion - Cons:
•Noisy and soft photos have noticeable detail loss, even at base ISO of 125
•Strong highlight clipping at times
•No manual controls, save for white balance
•Low light focusing not great
•Below average battery life
•Flash is slow to recharge
•Not great for night shots, due to 1 sec shutter speed limit and lack of manual controls
•Photos taken in portrait orientation are not rotated automatically
•Flimsy door over battery/memory card compartment
•Internal battery charging is slow, won't let you charge a spare
•Full manual on CD-ROM
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The full review is here:
http://www.dpreview.com/reviews/nikon-coolpix-s9300 I'm not associated with the website, but I think they do thorough reviews.