This image is made with a C9.25 – Hyperstar III setup and a QSI wsg583 camera. The SII, Ha, and OIII frequencies are depicted on RGB channels. Per channel 8 subs were used, with an exposure time of 12 minutes per sub. Due to the short flange focal distance, the usage of the “G” cover with pick-up prism of the QSI camera was not viable. Instead a seperate guidings scope f=200 was used with a Lodestar Guiding cam.
Location was camping Les Matherons at Puimichel, june 2013.