Conditions: some wind, no clouds, not much haze or fog; reasonble seeing
Setup: Obsession 18" Dobsonian telescope with 4x Televue powermate (f/18), red filter, Lumenera Skynyx 2-2M camera with an image scale of 0.08 arcsec/pixel. (image)
Acquisition: full frame 1616x1216 pixels, gain=1, 13 msec exposure time and 12-bit digitalization. Took 500 frames over a period of one minute.
Processing: Used Autostakkert 2.2 to align and stack the best 25%. Combined Autostakkert's sharpened image (70% transparency) with the unsharpened image. Tweaked levels and curves and cropped a bit. That's it.
This my second run with Autostakkert and the program just worked beautifully again, with absolutely no hicccups. I also took images through a green and blue filter, but as expected these did not exibit quite as high a resolution (seeing affects shorter wavelengths more). I wanted to combine the color channels into a high resolution view with enhanced colors. So far, the results have not been satistfactory - mainly due to alignment issues.
Here's my main page where you can see more of the pictures I have taken so far.
Comments greatly appreciated! (mikael@leif.org)
