A Skywatcher
Explorer 130 PDS 130mm, f/5 Newtonian was mounted on a Celestron AVX
EQ, GOTO mount. A ZWO ASI178MC (USB3.0, 14 bit ADC) camera was placed
at the Newtonian focus.
AstroDMx Capture for Linux was used to capture 45 x 55s Tiff files in RAW, undebayered format of M27. The best 40 images were stacked and debayered in Autostakkert! 3.10 running in Wine. The final image was post processed and scaled in the Gimp 2.10 and Neat image.
Having a 14 bit ADC means that this camera can yield 16,384 levels of brightness, compared with 4,096 levels with a 12 bit ADC camera. The data can either be saved to the lower bits of a 16 bit container, or to the upper bits, when captured by AstroDMx Capture for Linux.
ZWO ASI178MC
AstroDMx Capture for Linux was used to capture 45 x 55s Tiff files in RAW, undebayered format of M27. The best 40 images were stacked and debayered in Autostakkert! 3.10 running in Wine. The final image was post processed and scaled in the Gimp 2.10 and Neat image.
Having a 14 bit ADC means that this camera can yield 16,384 levels of brightness, compared with 4,096 levels with a 12 bit ADC camera. The data can either be saved to the lower bits of a 16 bit container, or to the upper bits, when captured by AstroDMx Capture for Linux.
M27
Larger view