|
I haven't used one of these Colin, but I reckon it's exactly what I'm after as a visual observer. I find it very hard to estimate the sizes of DSOs, angles between things etc. I have no experience in imaging or drift aligning so I don't know whether it would be of use for that. Where are you thinking of getting it from and do you know what they cost? I found them at Astro-Optical, but they have no price listed.
|