Hi Matt
Yes on the barlow. Once you down load the software and hook it up to a webcam you can then enter specifications about your telescope/webcam such aperture, focal lenght, barlow and central obstructions. The software requires this info for calculating observed diffraction pattern with theory, including secondary obstruction effects.
Quote:
Originally Posted by matt
Looks interesting, Anthony. Many thanks for the link. I'll try it out.
Do you have a barlow in place when carrying your collimation out with the software?
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