Image : NGC 5457 / M101

Exposure and processing: Dither guiding, dark & flat calibration, Poisson sigma reject, curves, L selective wavelet sharpening & noise removal, LRGB mixing.

Click on image for full size version (1070KB)


 

Exposure and processing: Dither guiding, only dark calibration (no flats), Poisson sigma reject, curves, wavelet sharpening, noise removal, LRGB mixing.

Click on image for full size version (630KB)

Taken at DelValle site.


Copyright images and processing Gert Gottschalk.
Copyright Bilder und Verarbeitung Gert Gottschalk.

Email : drgert1@yahoo.com

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