Telescope: Skywatcher 8" f/5 Newtonian
Focus: Prime focus
Camera: SAC7B, uncooled
Exposure: 101 x 25s
Date: 6th May 2003
Processing: Acquired in K3CCDTools as
AVI. Stacked in Iris. YRGB image, composited in Photoshop.
Colour enhanced using Multiple Luminance Layering.
Processed using the YRGB technique. During the later
stages of curve stretching in Photoshop the brighter stars were prevented
from bloating by de-selecting them. The stars are mostly untrailed,
reflecting a well behaved mount recently stripped down and lubricated.
Some of the characteristic diagonal
banding noise from the SAC7 camera is visible in the brighter regions just
outside the galaxy core. In this case no wavelet processing was
applied to reduce this noise as I didn't want to lose the fine detail in the
dust lane. Focus was exceptionally good reflected in this detail.
Star colours are still subdued although
there are hints - a potential area of improvement.
Unsharp masking applied to the image with
the stars deselected to enhance detail in the dust lane.