Re: UO HD orthoscopics, no different?

From: Bob Schmall (rschmall_at_wi.rr.com)
Date: 10/29/04 

Date: Fri, 29 Oct 2004 12:41:45 -0500

"Pete Rasmussen" <eye_petes@arkansas.net> wrote in message
news:1dq4o0930tqupic132v2hebg0rercobtqa@4ax.com...
> 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

Pete:
Check out the thread on sleeper eyepieces. Where can I find a GSO?

Bob
>