M 8 with NGC 6559 (Sgr)

Technical data:    16"f/8-Hypergraph

                            Ektachrome E200

                            1x60 minutes

                            Authors: Volker Wendel and Bernd Flach-Wilken

Technical data:     4"-Pentax SDUF I

                            ST10XME and CFW8 filter set

                            RGB (R=4x300s; G=4x300s; B=4x300s; RGB bin1) and in addition the red channel was used for Luminance to create an RRGB.

                            The channels were combined 1,2:0,95:1,6 per software. Because the star bloating of the SDUF I in blue was so extreme, the minimum filter was used in the blue channel to shrink

                            the diameter of the selected brightest stars. This helped a lot to avoid blue halos around the blue stars.

                            Authors: Volker Wendel and Bernd Flach-Wilken

Technical data:      4"-Pentax SDUF II

                            ST10XME with Custum Scientific 3nm-H-alpha filter

                            3x20 minutes exposure time

                            Authors: Volker Wendel and Bernd Flach-Wilken

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