Carsten Dietrich - Photo Gallery

M51 Light frames stacked and calibrated with Darks and Flats using Siril. Just Autostretching, but no further processing.

Final Image of M51. 179 Frames with 30s exposure, makes a total of 89.5min exposure time. Gain 100 Postprosessing Workflow in Siril: - Removal of satellite Frames - Calibration with Darks and Flats - Registering - Removal of worst FWHM Frames - total of 179 frames out of 197 Frames to be processed - Debayering - Stacking - Photometric Color Correction - Background Extraction - Stretching using ASinH Algorithm - Slight Saturation enhancement

M101, stacked with Siril, autostreched, no further processing 345 Light Frames with 30s Exposure => 2h 52,5min total Exposure

Final Image of M101. 345 Frames with 30s exposure, makes a total of 172.5min (2h 52.5 min) exposure time. Gain 100 Postprosessing Workflow in Siril: - Removal of satellite Frames - Calibration with Darks and Flats - Registering - Removal of worst FWHM Frames - total of 345 frames to be processed - Debayering - Stacking - Photometric Color Correction - Background Extraction - Stretching using ASinH Algorithm - Slight Saturation enhancement

M51 Light frames stacked and calibrated with Darks and Flats using Siril. Just autostretching, but no further processing.

Final Image of M51. 169 Frames with 30s exposure, makes a total of 84.5min exposure time. Gain 100 Postprosessing Workflow in Siril: - Removal of satellite Frames - Calibration with Darks and Flats - Registering - Removal of worst FWHM Frames - total of 169 frames out of 188 Frames to be processed - Debayering - Stacking - Photometric Color Correction - Background Extraction - Stretching using ASinH Algorithm - Slight Saturation enhancement

M51, 348 Light Frames with 30s each, makes a total of 2h 54min Exposure - stacked and autostretched, before photographic color correction

M51, 348 Light Frames with 30s each, makes a total of 2h 54min Exposure - stacked - Photographic Color Correction - autostretched

M51, 348 Light Frames with 30s each, makes a total of 2h 54min Exposure Gain 100 Unfortunately, the calibration with flats introduced red tinted borders left and right. Postprosessing Workflow in Siril: - Removal of satellite Frames - Calibration with Darks and Flats - Registering - Removal of worst FWHM Frames - total of 348 frames to be processed - Debayering - Stacking - Photometric Color Correction - Background Extraction - Stretching using ASinH Algorithm - Slight Saturation enhancement

The final image after postprocessing - zoomed

Final image. Postprocessed using VeraLux_nox and VeraLux_HyperMetric_Stretch scripts in Siril, followed by some ASINH and slight curve transformations.

It seems the calibration with the flats didn't work that well. Tinted at the left and the right border (red and blue). Workflow: - Removal of worst satellite Frames - Calibration with Flats - Registering - total of 221 frames to be processed - Stacking - Cropping, Background extraction and denoising in GraXpert - Aberration Removal (Siril Script) - Photometric Color Correction - Stretching using ASinH Algorithm - Slight S-Curve adjustments - Slight Saturation adjustment