So a DOB 8" it will be hey. Thanks for all that very useful advice. I will do some shopping around then. Can you let me know what specs (focal length/aperture) is best for an under $500 one? Do I need to clean the lenses frequently?
Jono
the 8" GSO is 200mm x 1200mm making it F6. if you take care you will rarely have to clean the mirrors. I have had mine for about 1.8 years and it still hasnt been properly cleaned. I did blow off some hairs once... mirror cleaning isnt hard but needs to be done properly. if you searchthe forum there are threads on cleaning mirrors
Before I go buy, I will take your advice in joining a star group first. What's with all the star groups these days, the information on their website seems so outdated. Can anyone recommend a good group closest to Sydney CBD holding an amateur/beginner session in the coming weeks/month?
Jono
As much as it nearly strangles me to recommend another society if you are based near the CBD then the North Sydney Astronomy Society may be the go.
I live in Roseville (just a train ride away) and have an 8 inch GSO Dob...and a few other toys...if you struggle with finding a club to hook up with feel free to send me a PM and I can let you see what the animal looks like before you buy...
See Robs & my previous posts in this thread, for links to all your local Sydney Astronomical Societies. L.
ps. They will be more than happy to assist in your quest..... Whatever it is.
L.
