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Any info on large old? brass & leather(?) telescope
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<p>[QUOTE="wlwhittier, post: 4478767, member: 76316"]No question about age...it's got plenty.</p><p><br /></p><p>As you extend it, a little at a time, it should retain a good deal of rigidity. There may be some looseness, but the optical axis should remain very nearly a straight line from eyepiece to objective lens, from fully closed to fully extended. They weren't made to 'telescope' for storage convenience: that's how focus was achieved. When that was built there probably weren't a lot of knock-offs or cheaply made telescopes...Pirates and other seafaring folks all needed a good glass, for the safety of ship & crew...a faulty telescope could cost everything![/QUOTE]</p><p><br /></p>
[QUOTE="wlwhittier, post: 4478767, member: 76316"]No question about age...it's got plenty. As you extend it, a little at a time, it should retain a good deal of rigidity. There may be some looseness, but the optical axis should remain very nearly a straight line from eyepiece to objective lens, from fully closed to fully extended. They weren't made to 'telescope' for storage convenience: that's how focus was achieved. When that was built there probably weren't a lot of knock-offs or cheaply made telescopes...Pirates and other seafaring folks all needed a good glass, for the safety of ship & crew...a faulty telescope could cost everything![/QUOTE]
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Any info on large old? brass & leather(?) telescope
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