Limits on Resolution: further examples

telescopes

• magnification: M = ?out/?in = fo /fe
• light gathering: Amt ??D2
• resolution: 1.22 ? = D sin(?limit) so
  ?in = ?limit and ?out = 5 arc minutes
  ?so ?limit ? 1/D implies Museful = 60 * D
  where D is in inches
• surface must be smooth on order of ?

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