Jørgen AM
Grøtfjorden-6904
Testing my wifes main camera, a 5D mark IV, for milky way shots on a star-tracker. Being hindered by the usual auroras at 69 degrees north. This was the closest I got to some dark and bright milky way regions visible through Cygnus.
The 5D seems ok for light sensitivity at long exposure under dark conditions. However, in this single exposure the star colours were all over the place including green. I suspect it has something to do with how the camera's dark normalization at ISO3200 is unable to substract properly from the RGGB pattern in low light. Going back to a similar shot last month on the 6D, I see similar coloured stars in single exposure, which colours normalize after stacking.
Equipment:
Samyang 24 mm at f5.6
Skywatcher 3/8 tripod+ Star Adventurer Mini
Grøtfjorden-6904
Testing my wifes main camera, a 5D mark IV, for milky way shots on a star-tracker. Being hindered by the usual auroras at 69 degrees north. This was the closest I got to some dark and bright milky way regions visible through Cygnus.
The 5D seems ok for light sensitivity at long exposure under dark conditions. However, in this single exposure the star colours were all over the place including green. I suspect it has something to do with how the camera's dark normalization at ISO3200 is unable to substract properly from the RGGB pattern in low light. Going back to a similar shot last month on the 6D, I see similar coloured stars in single exposure, which colours normalize after stacking.
Equipment:
Samyang 24 mm at f5.6
Skywatcher 3/8 tripod+ Star Adventurer Mini