Hi,
Does CCD Stack have any column repeair capability. I tried using the master dark created by CCD Stack with not much success.
Any other suggestions?
Gary

Dark subtraction always removes a column defect I have in my camera.

Larry

Gary,

For those column defects that can't be removed during calibration John Smith has written a compiler file using Stan's instructions that I have been successfully using for the past few years. I run the compiler (click on Compiler in Pixel Math) just after calibrtation. Update the Compiler to reflect the values of your bad columns. Save the Compiler text file to an easy to remember spot on your computer. In the Compiler open John's compiler file from File / Open then Execute /Apply to All. The compiler file assigns "missing value" to the specified column(s). Then open Data Reject and Impute Missing Value. The bad columns will be repaired.

You can find addtional information in the following CCDstack discussion.

http://ccdware.infopop.cc/eve/...801005561#7801005561

Good luck.

Wes,
Thanks for your interesting reply..I'll give this a try..I have had better luck since my darks are better now since I'm using 20-25 and it seems to be working better.
Gary