Black Country news and blogs Tuesday 17 July 2018
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Blog feature
Closeups in Calcium Light – 14th May

15 May 18

Taken with the 40mm scope, 2.5x barlow and additional 1.3x barlow this closeup must be around f30 and is pushing the boundaries of image scale with the little scope.

Taken using the homebrew CaK filter and the PGR Chameleon 3 camera.

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