CCTV lenses for video meteor astronomy

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

We present the results of CCTV lens tests made last year at the Ostrowik Observatory by observers of the Comets and Meteors Workshop. A total of 13 lenses with different parameters were tested. The limiting magnitudes, size of field of view, distortion and off-axis aberrations were measured. The Computar f/1.2, f=4 mm appeared to be the best lens tested. We also note the good marks of both Ernitecs which were finally chosen as the lenses which will be used in our projects. Surprisingly, the very fast lenses which are popular in video meteor astronomy seem to be much worse that their f/1.2 rivals.

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