Finally a bit of clear sky. Managed to have a go at these two dim nebs. They are effectively all HA as any O3 or Hbeta would be scattered and or absorbed by the dust between us and them.
Here is a bigger version 1.7MB
http://members.optusnet.com.au/~chee...c6357_6334.jpg
Details
Canon 5DH, 100ED at f/6.4,Hutech LPR filter and Astronomik HA filter.
Colour 5x(15s, 30s, 1m) at 400ISO, 5x(1m, 2m) at 800ISO. Taken after Moon set.
HA 5x(1m, 2m, 4m, 8m) at 800ISO. Taken with Moon.
ImagesPlus used to convert from RAW to TIFF and correct fo flats. RegiStar used for median stacking and obtaining identically sized stacked images differing only in exposure. EasyHDR used to produce an LDR image from HDR image for colour and HA data separately. Combined colour and HA with images plus.
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