Thanks Bob for your prompting. I suspect I posted this thread at the wrong end of the weekend. Just needed a few days for it to filter through.
Kev and Les, thanks for your opinions, I did say LB but any commerical Dob with a GSO 16" was applicable.
I remeber looking at M42 in a 12" GSO a while back and was very impressed with the view, those whisps of nebula were stunning. Also at the Sombrero and the dust lane was quite prominant. (The first time I used an aperture of this size for a number of years). I would imagine a 16" is another step up again.
I'm glad we have some visual observers here.
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