So according to Rayleigh's formula, that kind of resolution would mean that the lens diameter would be about 13 km (for visible light having a wavelength of 500 nm). Of course, with a lens that big one would have serious aberration problems.
(First-year-physics-student syndrome made me do it.)
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So according to Rayleigh's formula, that kind of resolution would mean that the lens diameter would be about 13 km (for visible light having a wavelength of 500 nm). Of course, with a lens that big one would have serious aberration problems. (First-year-physics-student syndrome made me do it.)