Diopter

On a digital camera, a diopter is a small dial or knob adjuster connected to the viewfinder. The diopter allows you to adjust the viewfinder sharpness to match your own eyesight. The diopter adjustment controls the focus of the viewfinder only, it does not change the focus of the camera lens.

Vangie Beal
Vangie Beal
Vangie Beal is a freelance business and technology writer covering Internet technologies and online business since the late '90s.

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