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  • Convex lens imaging law

    Convex lens imaging law

    In optics, the image formed by the convergence of actual light is called the real image; otherwise, it is called the virtual image. Experienced physics teachers often mention such a method of distinguishing when telling the difference between real image and virtual image: “The real image is...
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  • How to adjust the aperture of the lens?

    How to adjust the aperture of the lens?

    When adjusting the iris, the iris is always in a larger aperture state. Only when the shutter button is pressed to release the shutter, the aperture automatically shrinks to the set f-factor, and the aperture returns to a larger aperture after exposure. What is the lens? The lens has two fingers ...
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