CPC G02B 27/0025 (2013.01) [G01N 21/6458 (2013.01); G02B 5/28 (2013.01); G02B 7/006 (2013.01); G02B 21/16 (2013.01); G01N 2021/6465 (2013.01); G01N 2021/6471 (2013.01); G01N 2021/6478 (2013.01)] | 19 Claims |
1. An imaging system comprising:
at least one tiltable filter assembly comprising an optical filter configured to be positioned in an optical path of the imaging system;
a dynamic correction optic configured to be positioned in the optical path of the imaging system; and
a fixed correction optic configured to be positioned in the optical path of the imaging system;
and wherein the fixed correction optic is configured to substantially mitigate an astigmatism caused by a combination of the optical filter and the dynamic correction optic.
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