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Originally Posted by pk3lee
thanks everybody. I am just a poor student.
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Been there done that, just when I bought my scope. If you are a really poor student and every dollar counts, you might want to order the 8" Dob from Andrews Communications in Sydney for $399 + $40 for shipping. You should spend an extra $29 on the Cheshire/sighttube to help with collimation (aligning the mirrors from time to time). When I got my scope (from Andrews, because I was a poor student like yourself) it came with four eyepieces. I believe it's only two now, 25mm and 9mm perhaps. You'd probably want to get one more (15mm) and a barlow lens. See what's on offer and get back to us, we can help you out if you're unsure about anything.
Bintel will cost more, even if you buy locally, because they have better quality control and service. They dissassemble the telescope, inspect it, centre spot the mirror (mark it with a circle, which make collimation a lot easier), and collimate it before selling it to you. If you want to stretch every dollar as far as it goes then you might want to buy from Andrews and do these things yourself.
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Originally Posted by pk3lee
Will the dob scope able to upgrade to fit for a more advance use? To put it back to a EQ4 mount?
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You can put the tube on an EQ mount. EQ4 is probably not strong enough to be of much use. You'd need an EQ5 at least, but even that is pushing it. HEQ5 for around $1000 or EQ6 for $1500 is what you'd need. Or a custom made EQ. David (Ving) put his 8" Dob tube on an EQ mount.