How big a camera must be to catch the whole Sun in one frame?
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19 January 2012
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When doing Solar imaging with a solar scope people usually want to catch the whole Sun in one frame. Depending on the scope focal length a big enough imaging sensor is needed. But how big should it be. Here is a set of sensor diagonals for given (Lunt) focal lengths.
Focal length and a minimal diagonal size of the imaging sensor | |||||
---|---|---|---|---|---|
400 mm | 500 mm | 560 mm | 800 mm | 900 mm | 1600 mm |
1/3" (bit to small) 1/2" 1/2.5" |
1/2" (on the limit) |
1.1/8" (on the limit) 2/3" |
1" | 21.43 mm (on the limit) |
|
Point Grey Chameleon (1/3") DMK41 (1/2"), DMK72 (1/2.5") |
DMK41 (1/2") | Atik 320E / Lumenera SKYnyx2-2 / DMK51 (1.1/8") and EV76C560 based cameras (1.1/8") | CMOSIS CMV 4000 - Basler Ace acA2040-25gm / Ximea USB 3.0 | KAI-4022 - Atik 4000 |
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