Quote:
Originally Posted by Lee
Yes, series 2c, new this year...
Was your problem only with green and blue also??
I've got an old Ha filter, that exhibits halos, I was going to replace it sooner or later.... I don't find the halo that bad to be honest, I don't do much RGB in any case! I do like having all the same make filters for their par-focality....
Lee
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Another point worth mentioning is that my setup that produced thes halos is working at between F3.9 and 5.3 - the halos with the G and B were at 3.9 (i.e. I was using a Takahashi .73 reducer. I had heard that the faster the scope the more prone to reflection issues.
Peter