If the lens is magnifying 10x, shouldn’t there be just 1/10 of the light reaching the eye?
In photography you compensate it with long exposure, but with live lenses?
In: 3
You look through an eyepiece when using a telescope. The other end of the telescope is larger. With 10x magnification, the telescope is taking the light from an area 10 eyepieces in size and squeezing it down to 1 eyepiece in size. That’s 10 times as much light for your eyeball.
It is.
But the telescope is also larger than your eye, so it gather more light. If you compare two telescope of the same diameter with different magnifications (or simply swapping the eyepiece of one) you will see that the more magnification the darker it is.
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