Another from the backyard using the AP180EDT f/9 with 0.75x telecompressor and CM10 camera using Custom Scientific 3nm [SII]/Ha/[OIII] filters
http://www.narrowbandimaging.com/m16...20min_page.htm
total of 5 hours exposure time
this target served as my inspiration for entering this hobby. I first shot it using this very palette in June of 2003. I had never seen an amateur image taken using this method at the time I took my image.
Here is that original shot from 2003 that sort of started a fundamental fork in the road for amateur CCD imaging: RGB vs Tricolor Emission Line
http://www.narrowbandimaging.com/m16...ur_ii_page.htm
we've all come a ways since then
