Quote:
Originally Posted by Don Hoey
Hi Dave,
Side by side comparison. Quite a difference in the level of extra detail in the stacked version.
Don
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With 35 images there should be quite a remarkable improvement (Look at the images further down the page of that reference). You first image seems to have double stars? The second image is so similar to the first but more sort of blurred. There is no extra detail visible that I can see. Sorry!
I am firmly convinced that there is no short cut to taking real multiple images. It is then very worth while. I'm sorry I don't personally have any examples that I have taken that I can post, my astro images so far are quite long exposures and so have not taken many to stack. (I believe it is also good practice to let the camera cool down between shots which extends the time taken.)
Here are two shots of M27 (the dumbell nebula). The first is a single processed image and the second is using a dark frame and stacking just 3 images. I will at the next opportunity take many more images to stack.
Dave