Hi
Tonight I used the wonderful 300mm f2.8 flourite lens that Bert has so kindly supplied to me. I pushed deeper trying for a DSLR version of an orion deep field like this
http://www.universetoday.com/wp-cont..._field_med.jpg
What I was really after was the blue globules near the belt stars (upper left in above image)
With mine they just appear lower right, and the brightest one just to right of centre, easy to mistake it for an internal reflection, but it is nebulae.
My image is 5x5 mins ISO400, with UHCS filter. 300mm f2.8 flourite lens @f2.8 modded 350d
Processed with dark, offset and flat in Iris as usual, then PS. had to remove gradient with Gradient exterminator as orion was starting to get lower in the west.
One night when I have plenty of time I will try 2 or so hours total imaging on one object with this lens and really go deep
Scott