Hi,
taking pictures of the Moon can be really trick. I did it a few times with your camera's ancestor (the S2, in y case). It can be done, but here are a few tips.
1-make sure you are REALLY steady. Ideally, I would advise you to use a tripod, or at least to brace yourself against something like a wall. If you do use a tripod, turn off image stabilization.
2-I believe your camera has automatic focus area selection. Disable this and make sure the AF box is placed where you want the Moon in your frame. Alternatively you could try using manual focus and forcing it to focus at infinity.
3-Except if you want your Moon shots to show a specific colour (say, the effect of haze giving your Moon a yellow tint) I suggest shooting in black and white. Contrasts are better this way.
4-Shooting in Auto will probably lead to gross misexposure, the Moon being dramatically brighter than the sky. Two solutions exist for this : make sure your camera is set in Spot Metering mode, or use Manual mode and experiment with various settings regarding exposure.
If you try Manual mode, try not to use an aperture that's too wide. A smaller aperture will improve your lens' performances an will help make sure everything is in focus. Look here for more information about aperture:
http://www.digicamhelp.com/camera-features/advanced-settings/aperture.phphttp://www.digicamhelp.com/accessories/lenses/lens-speed.phpOne last thing : take lots of pictures! Especially in a city area, the air can be very turbulent and unclean, and your pictures could be much less sharp than what you expect. Good luck!
