Picture of Whirlpool Galaxy, Messier M51, with COAST C14 f/11 telescoop in Tenerife. Exposure time 180s without filters.
To compare I added my picture of M51, taken with Nikon D7500 on TAL200K f/8.5 with settings ISO12800 and 18minutes exposure time. Raw data converted to DNG and editing using CS4. The COAST picture format is PNG and final editing aswell with CS4.
