Some people are (rightly) wondering whether I ever image anything other than Antares/Rho Ophiuchi, but it is my favourite area of the sky and this was a bit of an extended test of a CCD/lens setup which I haven't tried properly yet, despite picking up my first 80mm Mamiya lens about the same time as I bought the QHY9 (second hand) two years ago.
http://philhart.com/gallery/Astropho...tares.jpg.html
This image was taken at Heathcote Leon Mow Dark Sky Site over Thursday (mostly clear) and Friday (only half clear) last week. Very cold temperatures for early May!
Ended up being nearly ten hours of exposure (L280:R70:G70:B90:HA80) as I just let this run (no guiding) both nights while I concentrated on other things (or slept). The Mamiya 645 80mm f2.8 lens was set to around f5. Fine focussing mechanism was a typical Hart hack job involving rubber bands and small screws..
cheers
Phil