I want to know what is it?also I want to update lens with my camera.
So thanks everyone.

Power of the lens, probably the zoom capability of a camera, in a digital camera it can be regarded as pixel the better lens you have the more vivid your images will be.

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Originally Posted by David_J21

Power of the lens, probably the zoom capability of a camera, in a digital camera it can be regarded as pixel the better lens you have the more vivid your images will be.

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As this is in the vision category, it's most likely that the OP is asking about the power of the lens in his/her glasses. ;)

Yveted--Are you referring to glasses or camera? These are two very separate questions and therefore cannot be answered in the same thread.

Thanks