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Old 23-11-2013, 08:36 AM
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Peter Ward
Galaxy hitchhiking guide

Peter Ward is offline
 
Join Date: Dec 2007
Location: The Shire
Posts: 6,639
Quote:
Originally Posted by gregbradley View Post
....

His RHA image says it all. You can't get those tiny stars with other gear. The other scope I have seen tiny stars like that is the infamous ASA 12. When it works its a tight machine..............

Greg.
Prior to getting the Honders, I had cursory look at other contenders like the ASA, Orion etc. that use Wynne correctors on their Newtonians. Yet it looked to me that the design still had residual field curvature, astigmatism, coma and chromatism.

The AP Riccardi-Honders, however has effectively perfect colour correction from 400 to 1000 nanometers, is fully corrected for spherical, coma, astigmatism, field curvature and distortion, as well as longitudinal and lateral chromatic aberration.

So I guess I'm one of those deluded nutters who waited years and parted with some serious bucks...
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