
Anything you could ever want to know about the basics of camera use, over at the verge.
Here’s a small snippet to give you a taste:
SENSOR SIZE
If there’s one rule to follow in photography, it’s that cameras with larger sensors take better photos. That’s a generalization, of course, but it’s based on a very basic empirical truth: the bigger the photosensitive surface area, the more light is taken in at a time. Practical evidence for this is abundant, from the Nikon 1 series that disappointed everyone with its undersized CX sensor, to the Nokia N8, which remains the smartphone camera champion today thanks to its class-leading 1/1.83-inch sensor.
Full-frame cameras derive their name from the size of their sensors, which match the “full frame” of 35mm film, and are predictably the professionals’ favorite choice. With a full-frame camera, a 24mm lens gives you exactly that focal length, whereas with smaller sensors, you’re subject to a crop factor that tends to turn everything into a slightly more zoomed-in version of itself (i.e. if the sensor is 1.5 times smaller than full-frame, as with Nikon’s popular DX format, you get 1.5 times the focal length; with a 24mm lens, that’d mean an effective focal length of 36mm).
I hadn’t noticed this before, but the verge also has quite an excellent product review page, for example here’s the Nokia N8 compared to the iPhone 4S. Not too shabby.