Carsten Dietrich - Photo Gallery

Single Light Frame of M51, 30s Exposure

179 Light Frames stacked using ASIDeepStack

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

One of 169 Light Frames of M51. Exposure 30s, Gain 100

M51, 169 light frames stacked and autostretched with ASIDeepStack.

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

Same as before, different workflow. Pro: Tinted borders are gone Con: Dust Doughnuts visible (just about) Workflow: - Removal of worst satellite Frames - Registering - total of 348 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