I've took some photographs at a photoshoot last week. The lighting conditions weren't right for the shoot (my fault entirely) and the camera we used was a compact. Unfortunately this means that the photograph is quite grainy. Anyone know a good Photoshop (or similar) technique to improve this?
Filter > Noise > Reduce noise.
Reducing noise usually blurs the pixels making the image less sharp. play with the sliders to strike a good balance between sharpness and noise reduction
If the image is shot in RAW (unlikely on a compact) then Camera RAW v6 brought significant updates to the noise reduction engine. You'll get a better result removing noise from the RAW before you bring it into photoshop.