Tycho detail   Leave a comment


From earlier in the week, the last best exposure.  889 frames f/7.5.  This was reprocessed in Registax V with multiple alignment points.  Method 1 had nine points, method 2 about 250 points, matrix only two points.  I chose method 2.  A 1.4 megapixel stack of 889 frames took fifteen minutes to align, and each subsequent step (optimize, stack) took fifteen minutes or more.  The advantage to using a dual processor machine was that one processor was devoted to registax, and the other was available for work.  This is a crop from the original.  I do most adjustments at 150 to 200% of original size, then reduce back or smaller.


Shot at f/15, 449 frames 339 stacked:  95% quality.  This is a crop from a 1.4Mp image, but wordpress reduced it about 50%.  The best of the week:  about an hour of computer time processing. (24 alignment points, create reference frame, sharpen, continue, optimize, stack, sharpen.)  No processing in Photoshop except cropping and conversion to jpeg.


Posted November 5, 2009 by finkh in Uncategorized

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