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Old 09-10-2007, 06:34 PM
Alchemy (Clive)
Quietly watching

Alchemy is offline
 
Join Date: Jul 2007
Location: Yarra Junction
Posts: 3,044
More details! How many frames to the mosaic? Was each frame at prime focus with the DMK + 12" newt? (iceman)
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in reply to your question... i cant remember how many avi;s i shot probably 25 or so... deleted from hard drive now.

Each avi 2000 frames with best 1000 used.... ive now gone to using 3000 and 1000 best since this shot.

I selected the brightest area and set the frame rate gain etc to suit and kept this for the entire sequence, single point stack in registax with exact same settings for each finished frame, the night i shot this i couldnt shoot with powermate as seeing not great so its just in the 12 inch newt alone. i then assembled each separate image on a master black frame 6000x 6000 pixels and merged each one with an 8 pixel soft edge, be careful not to sharpen a lot with wavelets... underdo slightly and then again when picture assembled.

give yourself a good overlap about 25% both tops and sides or else you could end up with an image like this one below.

Cant think of any more relevant points at the moment .....
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