Eyepieces for an Orion XT4.5
Posted 05 June 2020 - 01:03 PM
I recently purchased an Orion XT4.5 dob, and I could use some help in figuring out a good range of eyepieces to use with this scope. Specs are 4.5", F/8, and 900 focal length. I'm more familiar with 8" dobs and short tube 80mm refractors, so I'm not exactly sure what this scope is capable of.
I prefer to keep it as cheap and simple as possible. I'd rather have fixed eyepieces than a zoom. So what would be a good spread of single eyepieces? I'm guessing a 32mm, 16mm, 8mm, and 6mm. Does that sound right? I'm not sure if a 5mm or 4mm will be that usable, so maybe someone can weigh in on that?
Posted 05 June 2020 - 02:45 PM
The club received an XT6 donation I was charged with getting up to speed before it went up to the dark site. I matched it to a 25/12/8mm set of Astro-Tech Paradigm Dual ED's that worked really well.
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Posted 05 June 2020 - 03:18 PM
25mm, 15mm, 10mm plossls and 2x Barlow would be a really nice spread of magnification, while maintaining some eye relief.
The Telescope Warehouse has a set of 25mm, 12.5mm, 6.5mm plossls, that totals ~48usd for the three. Refer page 2 below link. They also have a variety of inexpensive eps.
The Surplus Shed has a multitude of eps and related equipment.
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Posted 05 June 2020 - 04:12 PM
Posted 05 June 2020 - 04:26 PM
It comes with 25mm and 10mm Plossls, right? In that case I would just get 32mm and 15mm Plossls along with a 2x Barlow.
Posted 05 June 2020 - 09:12 PM
Posted 05 June 2020 - 10:10 PM
Edited by Udderly Abducted, 05 June 2020 - 10:11 PM.
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