Quote:
Originally Posted by Alchemy
seriously though youre pics are ok, i dont know your level of experience so its hard to critique. It may be primitive but i use diffraction spikes to check my focus, pick a bight star and make them as long and tight as possible.... it works for me.
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In CCD imaging just about zero. Started about 4 weeks ago. In Deep Space Photography quite a bit, but that was 30 years ago when I used 35mm film, cooked it, backed it, froze it, force developed it etc. Also then I used a home made knife edge focuser as the distance from the film carrier rails to the front mounting point of a SLR was easily measured with a micrometer. Not quite as easy with a CCD imager.
Yes, I try to get the thinnest sharpest diffraction spikes too when using a Hardman Mask. Must be my eyesight
