Sun Through A CaK Filter

Sun through a CaK filter
Taken by Alexandre LHOEST on May 15, 2018 @ Belgium

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Camera Used: Unavailable Unavailable
Exposure Time: Unavailable
Aperture: Unavailable
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Date Taken: 2018:05:17 21:38:26

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Details:

Active zone taken with a solar newton and a CaK filter. A barlow is used in the setup. The resulting focal length is 3500mm.

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Comments

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Good setup !
BR
Sylvain

Posted by sweiller 2018-05-29 08:23:45

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