Astro-Physics 127mm f/8, TC-14E II, Nikon D750, ISO 80, 1/4000s, f/11, 1400mm Published 18/05/2016 at 1600 × 1600 in Giant Sunspot AR2456 Next → Astro-Physics 127mm f/8, TC-14E II, Nikon D750, ISO 80, 1/4000s, f/11, 1400mm