Great picture. With the amount of signal you have gathered the dark lanes
look well defined.

Stefan

"Richard Crisp" schrieb im Newsbeitrag
...
this is starting to shape up. Stefan is right: it is faint. I hav 7 hours
of Halpha binned 2x2 in a big pixel camera (12 micron pixels) with high QE
(~60%) and a reasonably high throughput Halpha filter (7nm @~90%
transmission)

I used the stinger 450mm classical cass at f/12.6 for this one: F=5760mm

Guiding was using the Lumicon Giant Easy Guider without the reducer.

http://www.narrowbandimaging.com/sh2...er_ha_page.htm