Telescope: Skywatcher 8" f/5 Newtonian
Focus: Prime focus
Camera: SAC7B, uncooled
Exposure: Mosaic of 2 images each 61 x 25s
Date: 9th July 2003
Processing: The usual YRGB
processing, except that the subtraction of a 'banding flat' (see the
Advanced Processing page) was done to
remove fine banding noise in one of the images in the mosaic. Colour
balance was difficult and was done as a final step in Photoshop.
I'm very pleased with the degree of detail
visible in the nebulosity and the star colours. Making a mosaic
increases the effective resolution of the image and contributes much to the
overall impact of the image.