When a lens is reduced in size, its magnification power is also reduced. This is because the focal point (the point where light is focused) remains the same, but the size of the lens has decreased. Lenses with a smaller diameter are usually less powerful than those with a larger diameter.
Lens diameter affects magnification in surprising ways
If you’re looking to change the magnification of your eyeglasses, you might be surprised to learn that changing the lens diameter, while keeping the radius of curvature of the two surfaces the same, actually results in a change in focal length. This is because the larger lens projects an image that is farther away from your eye than the original focal point. So, if you want to increase the magnification of your eyeglasses, it’s best to go with a lens that is larger in diameter than usual.
How to calculate magnification with a reduced-diameter lens
The magnification produced by a lens is affected by the diameter of the lens. Lenses with smaller diameters produce more magnification than those with larger diameters. This is because a smaller diameter lens collects more light, which results in increased image size.
What Happens When You Reduce the Magnification of a Lens?
If the diameter of a lens is reduced, what happens to the magnification produced by the lens? The answer to this question depends on how much the diameter has been reduced. If the diameter has been reduced by a factor of two, then the magnification produced by the lens is halved. If the diameter has been reduced by a factor of ten, then the magnification produced by the lens is ten times greater than before.
