telescope small
How to capture the light of the human eye compared with that of a 50mm (2inch) small telescope objective?
what is the area to capture light of a 2 inch wide.
You do this, the amount of light collected depends on the area of opening (the hole that lets light into the telescope, the eyes or anything else). The area varies with the square of the diameter for a circle, which can be both an opening of the telescope and seen the human eye. 50 mm is the size of that diameter. Now, find the average diameter of the pupil of the eye, or eye opening in millimeters (do not know what it is). Call it a mm, just to show how. Take the difference, in this case is 50-1 = 49. Square that number, and that's the difference in the ability to gather light. So in that case, we get (49) 2 ^ more light gathered by the telescope that you make with your eye. I hope this helps
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