When I shoot with my cameraphone flash in low light, why is it that I rarely get the image in focus?
Why do I see a yellow band of light across my photos while shooting indoors?
What metering pattern should I use for macro photography?
The focal length of a lens is calculated as the distance between the lens and the image plane, when focused at infinity. If that is the formula, why is the length of my 200mm lens only 136mm?