[Chaos-l] Dob buying advice notacable
mdlemon at lemons-bend.com
mdlemon at lemons-bend.com
Sat Feb 13 21:38:04 EST 2010
Can't argue with Michael's analysis. I own a 10" Zhumell tube dob
myself and it has done banner service. It's easy to setup, easy to
maintain, and can observe all but the very faintest of the faint.
As for eyepieces, while I've had the privilege of enjoying a Nagler in
my dob, I get just as much enjoyment from my basic Zhumell 26mm
widefield. It's sharp almost to the edge and gives a nice field of
view (FOV).
In the higher mags, while I've used a 4mm in my scope, and it can be
amazing on a good night on the moon or a planet, such high mags are
difficult to get a good night for. Just a 25-30mm that has a 70+ FOV
and a good 15-17mm will do you fine.
Collimation is the biggest hurdle...at least it was for me. There's a
good bit to learn about how everything works in a reflector. I
splurged for the Catseye (http://www.catseyecollimation.com/) tools
and they are well worth it. They explain everything in detail in
addition to being solidly built to last a lifetime. You will never
need another set of collimation tools.
Mike
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