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| This image
was taken using the Meade f3.3 focal reducer and the 15 mm extension ring on my 8" f10 LX 200.   
Using this combination I achieve a focal
ratio of about f5.0.   This image proved very difficult to capture
  with an 8 inch scope and suburban location.  It is a composite of eight
  20 minute exposures guided with the STAR 2000.   They were color
  converted and combined in Astro Art and then further processed in
  Photoshop.  Two different images were generated in Astro Art.  One
  to capture the central area and one to capture the outer regions.  The
  two images were then combined in Photoshop using a Gaussian Blur mask so that
  both the bright central region and the very dim outer regions could be
  captured in a single frame.  This combining technique is described by Jerry Lodriguss
  in the Jan 2001 issue of Sky and Telescope.  Total
exposure is 160 minutes.  Click
here to go back. |