Knowledge of Visual Inspection: Lenses: How to Choose Focal Length
Please select the optimal focal length according to your purpose!
Lenses that allow for adjustments in aperture and focus have a value called "focal length," which relates to the angle of view (shooting range). When expressing the specifications of a lens, it is common to represent the maximum aperture value and focal length together, such as f1.4/12mm, which indicates that "focal length" is an important specification. Here, we will introduce how to choose a focal length. *For more details, please see the related links.*
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