Concave lensss
If the image quality is suffering because of the haze, then the lens should be sent to the manufacturer or reputable camera repair shop for cleaning. Undertaking this repair without the proper skills, tools, and environment could potentially ruin the lens.
For basic photography you would do well with a basic zoom lens. Just a short zoom lens should handle most photographs for a casual photographer.
The short focal length of a camera lens is so that the image the lens forms is small and can be focused on a piece of light-sensitive film.
Yes it should be eyeglass' lens because the lens belong to the eyeglasses
The short answer is two. Purchase one versatile zoom which will cover a range of focal lengths. Your second lens should be a small, lightweight prime lens.
Independent Lens - 1999 Short Stack 2006 was released on: USA: 26 December 2006
A concave lens is thinner at the centre. People who are short sighted often use a concave lens to help them see better.
A lens of short focal length has a greater power (than a lens of large focal length)
lens paper is fragile
The lens in a door peephole is a convex lens with a very short focal length, giving it a wide field of view. If it were on a camera, it would be called a "Fisheye lens".
convex lenses are for short sighted people.
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