Hi All,
With a collage of beautiful images adorining this page, I feel a little guilty writing a post with no image attached but it's the only place I know appropriate for an image based question so here we go.
I've spent 2 sessions to date collecting data on Horsehead and Flame. The first session was with about 50% moon in the sky but somewhere in the region of 40-45deg from the object. I was pretty happy with the result but it was commented that I could stretch it some more to reveal more. I tried but it became noisey so my figuring was to collect more data.
The second session was last Friday night. There was no moon while I was collecting the data and seeing was beautiful. Alas, for what ever reason DSS scored the data lower by about 20%. The lower scores in the second session wasn't as low as the lower scores from the first though so I would say not as good but more consistent. When I stacked the two sessions together though, I lost a considerable amount of nebulosity and ended up with a far worse image to take into processing
So my question is, is there a golden rule for the score deviation between best and worst images used ? I have it set to use the best 80% but should I be only checking scores above 'x' with relation to my reference frame score ? Or is it because I stacked them all together and not in seperate tabs in DSS ?
The answer to this may explain some other goings on that I've had from multiple session images not improving the final product.
I thank you all in advance for your input.
