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What is the focal length conversion ratio (or crop factor) on a digital SLR?
Asked by unknown
1 Answers
Unless it's a very expensive full-frame model, all digital SLRs will have a focal length conversion (also called a field-of-view crop factor) to deal with. Basically you have to re-train your mind to think in digital SLR, rather than 35mm terms. Let's imagine this scenario. You grab your old Canon Rebel film camera and take a picture
What’s the difference between optical zoom and digital zoom?
Asked by unknown
1 Answers
Optical zoom leverages the physical change in a lens to adjust the distance between the camera sensor and subject, whereas digital zoom uses magnification technology to enlarge an area of an image, thereby compromising the integrity of the picture by cutting down on the megapixels.
What is shutter speed?
Asked by unknown
1 Answers
Shutter speed is the amount of time the shutter allows light onto the CCD. The shutter speed is measured in seconds (or fractions of a second for most common pictures). The slower the shutter speed, the more motion is recorded by the camera. A tripod might be needed to use slower shutter speeds without blurring the picture.