Traditional Culture Encyclopedia - Photography and portraiture - My camera lens says 20 * zoom 3.0-60.0m1:1.8 φ 34. What does that mean?
My camera lens says 20 * zoom 3.0-60.0m1:1.8 φ 34. What does that mean?
20 * zoom 20 times magnification zoom
3.0-60.0mm This is the zoom range. The shortest focal length is 3mm, and the longest is 60mm, 20 times.
1: 1.8 This means that the brightness ratio of the same aperture value is 1: 1.8, which means that the brightness of the same aperture value is different in wide-angle and telephoto states.
Φ 34 This is the lens caliber. If you buy anti-ultraviolet glasses, you need to choose a size with a diameter of 34 mm
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