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Chester Moore Hall
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<p> Chester Moore Hall (9 December 1703, <a href="/facts/Leigh-on-Sea/7EEMMdD2">Leigh, Essex</a>, England – 17 March 1771, <a href="/facts/Sutton,_Essex/eCM7KIG7">Sutton</a>) was a British lawyer and inventor who produced the first <a href="/facts/Achromatic_lens/6R4A63JY">achromatic lenses</a> in 1729 or 1733 (accounts differ). He used the achromatic lens to build the first <a href="/facts/Achromatic_telescope/PMwsYTC3">achromatic telescope</a>, a refracting telescope free from <a href="/facts/Chromatic_aberration/Fy1hIg1Y">chromatic aberration</a> (colour distortion). </p><p>He lived at New Hall, <a href="/facts/Sutton,_Essex/eCM7KIG7">Sutton</a>. </p><p>His name was also spelled <i>Chester Moor Hall</i> and <i>Chester More Hall</i>. </p><p>The design had two elements, a crown and flint glass, that brought two wavelengths of light to a focus. </p><p>Chester is noted as having made the first twin color corrected lens in 1730. </p>