[Dennis]

Hello,

This is my 2nd attempt at LRGB imaging using the SBIG ST7E and I think the results are less than pleasing due to a number of factors; inexperience with LRGB processing not being the least!

The images were captured at F9.4 using the Mewlon 180 and SBIG ST7E fitted with CFW8A colour filter wheel. The filters are specified as being parfocal so I neglected to check the focus between filters and I think that resulted in a slight bloating of the images as I compare the results between filters.

The exposures were all 5 minute sub-frames, L, R, G and B with a total of 4 sub frames for each filter, giving a total exposure time of 80 minutes which still seems inadequate to control the noise levels in the data.

Overall, it has been quite a sobering experience, as I now better understand the work and talent that has gone into some of those wonderful LRGB images I have had the privilege to see on Ice In Space.

9th Feb 2008, Brisbane, Australia
Takahashi Mewlon 180 with Reducer/Flattener at F9.4
SBIG ST7E (Parallel) and CFW8A
LRGB 5 min exposures, 4 sub-frames per filter, 80 mins total exposure.

Cheers

Dennis