Re: UO HD orthoscopics, no different?

From: Pete Rasmussen (eye_petes_at_arkansas.net)
Date: 10/29/04 

Date: Fri, 29 Oct 2004 11:10:22 -0500

On Fri, 29 Oct 2004 13:54:36 GMT, "Bob Schmall" <rschmall@wi.rr.com>
wrote:

>
>"RichA" <none@none.com> wrote in message
>news:dhl3o01p9p6qvt4pudsnuoc25v2jh7dl4q@4ax.com...
>> I'm pretty sure these eyepieces are simply the regular orthos
>> (excellent eyepieces) with new packaging. If you look at this
>> picture of the Antares orthos (simply a new flat-top version
>> of their standard orthos) from Helix Mfg, you'll see they
>> have the same undercutting as the new UO HD orthos. Only
>> difference is the red versus green lettering. What they've
>> done is gone from the old bevelled top to a flat top, added
>> a rubber eye cup and undercut the barrel. Any optical difference
>> compared to the "classic" orthos is likely not actually there.
>
>This is pure uninformed speculation, and as such is unfair. See below.

True. Rich apparenly never compared them informatively.

>> If anyone knows if they've done something new to the optics,
>> it would be interesting to hear about it.
>
>I've recently tested both the University Optics orthos, original and HD,
>against a TV Radian and AP SPL, all in 12mm focal lengths. I kept the HD and
>sold the others, not because it was orders of magnitude better, but because
>it offered comparable performance at a much lower price. The HD was better
>than the original orthos, IMHO, because the newer coatings reduced flare.
>However, as I posted in another thread, I still consider either of the
>orthos to be sleeper eyepieces.

Based on the above criteria it would be my suggestion that you
consider comparing your 12mm HD to a GSO 12mm Plossl. You would
likely be impressed with it at 1/4 the price. If you do this
comparison please also publically post your results for the other
readers.

Pete

Relevant Pages

  • Re: eyepiece purchase
    ... Televue Nagler, Panoptic, and Radian Eyepieces. ... The UO Orthos will actually be a better eyepiece for critical Planetary ... Here's where the Televue Radian shines, as these were designed by Uncle ... Al Nagler to have great eye relief for those who wear glasses. ...
    (sci.astro.amateur)
  • Re: Eyepieces with the "most" about them
    ... Germany was reunited when both production runs of the 1.25" ... Abbe eyepieces were produced. ... Or perhaps you just don't realize that the 1.25" Abbe ... Zeiss 1.25" Abbe series the .965" orthos were very highly regarded by ...
    (sci.astro.amateur)
  • Re: UO HD orthoscopics, no different?
    ... > I'm pretty sure these eyepieces are simply the regular orthos ... > (excellent eyepieces) with new packaging. ... I've recently tested both the University Optics orthos, original and HD, ... than the original orthos, IMHO, because the newer coatings reduced flare. ...
    (sci.astro.amateur)
  • Re: Eyepieces with the "most" about them
    ... UO tops Speers in this catagory. ... If you mean the orthos, I'd partially agree, but they are ... radically different eyepieces from the SWs. ...
    (sci.astro.amateur)
  • Re: UO HD orthoscopics, no different?
    ... >>it offered comparable performance at a much lower price. ... >>than the original orthos, IMHO, because the newer coatings reduced flare. ... Pete: ... Check out the thread on sleeper eyepieces. ...
    (sci.astro.amateur)