Quote:
Originally Posted by Camelopardalis
Nice one Mike 
But what's with the star halos? I thought only cheapie scopes/cameras did that  |
Nup even $70K RC's show strange optical or reflective artifacts, GSO RC's and Newtonians can show strange radiating arcs in their diffraction patterns, even expensive Richardi Honders show strong circular rings around stars. In the case of halos like these, the optical design, the last element of the corrector or flattener, the CCD optical window, the filters and even the CCD cover slip, can all interact with reverse reflections to some degree or another, to cause interesting halos....in the end it is part and parcel of many opto-mechanical imaging systems... in some form or another
They are more prominent in some images than others, depending on the filters I have used and what combination I blended them as well as the degree of stretching and other secretive stuff I do
Mike
