Friday, October 12, 2012

AR 1589 Double- and Single-Stack

Although the sky was a clear, deep blue today, seeing was not good.  Crisp air and local ground heating produced lots of turbulence.  However, I think I am getting the hang of the doublestack now.  Very, very fine adjustments make a huge difference.  Here is AR 1589 with the DS:

And here it is with the plain PST:

The differences are something I have noticed about the DS filter.  It produces images that are more detailed and yet "softer" and more "photographic."  I hope to have some good seeing soon, so that I can see what the DS is really capable of!