Ok I'm starting to visualize this, and its starting to make sense. One clarification Geoff. Is your analogous lever pivotted at the objective or the focal plane?
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Originally Posted by Starkler
You could model it in mechanical terms with a lever with its pivot at the position of the objective, the length of the lever is the focal length.
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The bit about the lever I get, but then your saying
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Originally Posted by Starkler
The end of the lever is pivoted to a short lever of length of your eyepieces focal length. A small movement in the "objective lever" would create a much greater anglular movement in the "eyepiece" lever.
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The lever has two pivot points? Or the end of the longer lever "articulates" the shorter lever? Like a hinge?
I think the light bulb is starting to warm up
