66mm (again)

With all the interest in these scopes I was wondering if anyone knows who is actually manufacturing the WO/Astro-Tech/Stellarvue (did I leave anyone out) 66mm APO? I'm assuming they're made in China.

Also, the Astro-Tech is advertised as using ED glass and the WO as using SD glass. Is there a difference?

[QUOTE]David Colton said:

With all the interest in these scopes I was wondering if anyone knows who is actually manufacturing the WO/Astro-Tech/Stellarvue

These scopes are being made by the Long Perng Co. in Tiawan. The web site is
WWW.longpern.com
If you check the web site, they offer quite a discount on bulk (50 pcs or more) but do not sell individual scopes.
I have the 66mm petz. (William Optics branded) and really like it. So far I've had it up tp 174x on the moon and the views were almost color free (very slight yellow shading on the inside limb using a 2.3 X-Cell) The optical quality and the build quality of these scopes are just fantastic.
Roger