What is zoom?
Sometimes when you take a photo you need to focus on one area in the picture frame. For example when you take a portrait photo you want to make sure the objects face fills the photo frame while when you take a group photo you want to make sure everybody is in the photo frame.
In to focus on that one area in the photo frame you can either physically move closer to the objects or use the cameras zoom feature. When using the zoom feature the camera (mechanically when applying an optical zoon or electronically when applying a digital zoom) enlarges that area to fit the full picture frame.
There are two types of zoom optical and digital (in older film cameras the only zoom option was optical). We will try to explain the differences between the two.
How does optical zoon work?
Optical zoom works by physically moving the cameras lenses and changing the focal length. By changing the focal length you can make objects appear bigger and fit the full photo frame.
When satisfied with the zoom position you can shoot the photo by simply applying the shutter button.
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