High Quality Eyepieces for Sale - UO HD orthos

[ausastronomer (John Bambury)]

I have a full set of University Optics High Definition Orthoscopic Eyepieces for sale. These are in completely unmarked, as new condition, I also have all of the end caps and the original boxes.

5mm,6mm,7mm,9mm,12mm and 18mm

I will not break the set of 6.

New these sell for about $130 each. If you are interested in buying the lot as a package contact me and we can discuss a fair price, I am looking to get about $100 each as these are in perfect condition.

I am selling these because I am developing a preference to observing with my eyeglasses on due to worsening astigmatism and these are unsuitable for that. For someone that does not need an eyepiece with long eye-relief these offer superb image quality and work very well in scopes down to F4.

CS-John Bambury

[iceman (Mike)]

I can vouch for the quality of these eyepieces as I viewed through 3 or 4 of them at the mini starparty in April.

They are great for planetary and lunar work, and offer very good contrast and crisp right to the edge, even in fast scopes.

[mch62 (Mark)]

Hi John sounds like you have exactly the same problem as myself .

I have retired my UO orthos for visual use for a full range of the longer eye relief Televue Radians & Type 4 Naglers and a 31mm Nagler.
All these Televue will work with the new Dioptrx Astigmatism correctors from Televue.

In case your not aware of these you get them in the strength of astigmatism correction required and then you rotate them to suit the angle you require.
They fit on top of the long eye relief TV EP's and are just an additional lens.
This means you don't need your glasses for viewing.

I found that even with the long eye relief eyepieces your glasses have to rest against the rubber eye cap some times and this leads to smears on the glasses , very frustrating , not to mention the reflections that glasses tend to through even multi coated glasses.
These Correctors I think will be a god send .
I am how ever not getting rid of my orthos as they are still superior than the TV for planetary and will us em for eyepiece projection imaging.

Mark

[trufflehunter (Wayne Robinson)]

As Mike said, I can vouch for them too, having seen one of the best views of Jupiter ever through John's scope with one of his UO eyepieces!

What are you planning on replacing them with, John? Pentaxes? Radians? Naglers? Tak LE's?

[ausastronomer (John Bambury)]

Originally posted by trufflehunter
As Mike said, I can vouch for them too, having seen one of the best views of Jupiter ever through John's scope with one of his UO eyepieces!

What are you planning on replacing them with, John? Pentaxes? Radians? Naglers? Tak LE's?

Wayne,

I don't know that I really need any more eyepieces, I already have the Pentax XW's which I like a lot, they also barlow very well in the 2.5X TV Powermate so I have almost the same powers available with the XW's and the Pomermate as I have with the UO Orthos. The Pentax XW's give me the 20mm of eye-relief that I need and they are also very sharp and contrasty with excellent light transmission. I have had the Pentax XW's for over a year and kept both sets because I don't need the money from the sale of the orthos, but really they are taking up space without being used very often. When I do use them its only for sentiment sake as I could cover the option with a Pentax XW either native or barlowed. If I sell the set of orthos and the 20mm Pentax XW I may buy the 26mm Nagler T5, very undecided at the moment.

CS-John B

PS- I think that the view of Jupiter you are referring to, that you and Louie "spilled your coffee" over, was actually a 10mm Pentax XW in the TV 2.5X Powermate which gives 310X in my scope. The orthos however provide image quality just as good as the Pentax XW's with unfortunately shorter eye-relief. Its also worth remembering that to get a good image of Jupiter at over 300X you need "good air" and a "good mirror" to go with the eyepiece combination thats in the scope.

Actually come to think of it I, Mike had a few of the orthos in my scope pointed at Jupiter at one stage of the night, so maybe that was the view you were referring to?

[ausastronomer (John Bambury)]

Hi Mark,

I have heard about the Televue Dioptrx Corrector from a couple of guys that tested it out at NEAF recently. Unfortunately I am using Pentax XW's with my glasses on at present and the TV device cannot be fitted to these eyepieces. There is another device produced by Mark Gibson's company, Clearvue Optics, which fits into the focuser, called the Astigma-Cor which has been available for a couple of years but I have not received much feedback on it, apparently it also only works with "simple" eyepiece designs, but at least of any manufacture.

http://www.clearvueoptics.com/prod01.htm

At the moment I am very happy with the Pentax Eyepieces but I will definately try out these devices when they become a lot more widespread amongst the Astronomical Community.

CS-John B

I too can vouch for the UO HD's I got the 18mm, 12mm, 9mm, 7mm on John's recommendation and have been very happy with them. The 18mm & 12mm are good for dso's too! But alas I too have sucumbed to the seduction of the XW and my collection of them is building

Actually in certain atmospheric conditions I have found the UO HD's to be a better performer than the XW's (only very slightly) but this could be due to the HD's impressive light transmission. I know I'll end up leaning on the XW's eventually and the HD's wont get a look in as they are plainly to different ep's. But I dont think I will be selling mine either, I still use them. The 9mm tell me whether to bother getting the XW's out lol. If my 4 yr old son who looks like he's keen on the hobby takes it up. The UO HD's will be a great set of ep's for him as well as the GSO 30mm SV after I swap it out for a 31mm t5 lol. pitty you wont seperate as I could of been interested in the 5mm & 6mm to complete my collection.

regards, CS

PS: John, I acquired the 3.5 XW on Friday, It's obviously a clear sky ep. Man! this one delivers impressive views too! and _bright_!!!!!