5ash
16-02-2007, 11:11 PM
This pic is made up of 6 x120sec pics at iso1600 and 4 x 120s pics at iso800 stacked using extended addition in images plus using a brightness parameter of 400 to reduce the brightness of alnitak in the final pic. the image was then digitally stretched , cropped and processed in photoshop using levels and astronomy tools to give the final picture . the telescope was an lx90 , unguided , operating at F4.2 and the camera a 350D
regards philip
ps you can just see the horsehead nebula middle top of picture. Even with brightness parameter of 400 alnitak is still burnt out!
regards philip
ps you can just see the horsehead nebula middle top of picture. Even with brightness parameter of 400 alnitak is still burnt out!