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Why is it one needs more illumination when using the higher levels of magnification?
Wiki User
∙ 12y ago
It's actually simple: The more the magnification, the smaller a "picture" of the available light you are getting - hence the more magnification, the darker the image looks. It works the same way with an astronomical telescope: The more magnification you use (assuming the objective lens doesn't change) the dimmer the object gets. To put it another way - there is a big difference between how high a magnification you are using, and how much light is reaching your eye.
Wiki User
∙ 12y ago
Wiki User
∙ 13y agoFor a higher magnification, more light is needed than a lower magnification which needs less.
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