The Pros of Mirror Lenses. If the magnification is negative, then the image is inverted with respect to the object. For make‐up and shaving mirrors the most common ratings are 3X, 5X, 7X and 10X. The core differences between the mirror and lens would be due to its construction and working. Mirrors can also be used to form images. Both these devices are used in various industries such as photography or astronomy etc. h image = m h object. An image of height $$h'$$ is formed at a distance $$q$$ of an object of height $$h$$ at a distance $$p$$. The magnification of the thin lens system is. Lenses bend the direction of light through refraction. Difference Between Mirror and Lens. Mirrors change the direction of light through reflection. 2) Magnifying mirrors are rated for their power of magnification based on how much bigger they make an object look. For instance, a lens that makes a small object appear very big has a high magnification, while a lens that makes an object appear small has a low magnification. I have drawn the element as an interface, though it could equally well be a lens (or, if I were to fold the drawing, a mirror). The magnification (m) of lens can also be calculated in terms of image distance (v) and object distance (u), if we do not know the size (height) of object and image. Let’s keep it simple—they are lightweight, they are small, and they are affordable. Both mirrors and lenses can create images. Lets apply image magnification equation to second lens m 2 = - 1.15 Second lens has magnification of – 1.15 Image magnification in terms of object/image height is Image generated from first lens going to be object for the second lens h i1 = h o2 From this equation we see that total magnification … It will always less than 1. The mirror is a device is based on the principle of reflection whereas the lens is based on the principle of refraction. m = -v/ u m= h'/h It will be always negative because virtual and erect image is formed by the convex mirror. Images may be upside-down, right-side-up, larger or smaller. Thus, m = … A plain flat mirror would be rated at 1X and one that makes an object 3 times larger would be rated at 3X. Assuming, as ever, that angles are small, we have $\text{magnification} = \dfrac{\theta_2q}{\theta_1p}.$ They have a variety of curved surfaces, depending on their function. How the image appears usually depends on the geometry of the lens or mirror, and also on the location of the object and the observer. The most expensive telephoto lens currently sold at B&H (the Sony FE 600mm f/4 GM OSS) costs $12,995.The most expensive mirror lens sold at B&H (the Rokinon Reflex 300mm f/6.3 ED UMC CS) costs$299.The 600mm Sony is 17.68" long and weighs 6.7 lb. 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