Sensor noise has gotten a lot of press in recent years. Digital noise, particularly from high-ISO photography, has gotten considerably better with innovations in digital camera sensors and image processing algorithms. Still, though, noise is a real issue for almost every photographer, no matter what she might be shooting. Light Stalking has published a nice tutorial about noise and its causes, as well as a few great tips for reducing noise without resorting to post-production trickery. Advice centers on the common sense approaches of shooting with lower ISOs and subtle overexposure, as well as keeping the camera itself cool. Great advice for anybody who doesn’t want to take a "fix it in post" approach but still wants to make low-noise photographs.