Monday 23 July 2012

CaK Full Disk - 22nd July

CaK Full Disk by Mark Townley
CaK Full Disk, a photo by Mark Townley on Flickr.

Been a while since I took one of these shots, but even at CaK wavelengths the sun is relatively sparse in activity lately. Taken with homebrew CaK filter 70mm f9 DMK31.