Sunspot AR 2529
Taken by Jack L. Metcalfe on April 13, 2016 @
Stanford, Kentucky
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Camera Used: NIKON CORPORATION NIKON D810
Exposure Time: 10/1250
Aperture: f/15.0
ISO: 64
Date Taken: 2016:04:13 10:31:33
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Details:
This is a cropped image of sunspot AR 2529. The photo was taken with a 140mm aperture f7 Telescope Engineering Company apochromatic refractor. I used a Baader white light solar filter & a Televue 2X Powermate giving me a total optical system focal length of 1960mm. I also used a Nikon D810 DSLR at ISO 64 for the 1/125th second exposure.
Photographer's website:
No URL provided.
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