Astromart

June 25, 2004 02:09 PM Forum: CCD Imaging and Processing/Solar System

Veil (NGC 6992) reworked a bit...

Posted By Doug Walton

Joe, that's beautiful. Thanks for posting!
Doug

July 9, 2004 03:23 AM Forum: CCD Imaging and Processing/Solar System

ngc 6826

Posted By Doug Walton

Thanks for posting!

July 29, 2004 01:25 PM Forum: Equipment Talk

Eyeglasses, Astigmatism, and EPs

Posted By Doug Walton

I guess I'll do some experimenting with EPs and see how it goes!

Doug

August 15, 2004 01:17 PM Forum: Telescope Making

I know what you mean.

I've never understood why some of the premium scope makers (Starmaster, Obsession, others) don't bother to at least offer a high-end secondary upgrade as an option with their scopes. So many people are obsessed about the quality and perfomance of their primary mirrors, but few talk about optimizing the optical train with a super-precise secondary. And in the overall picture, the added cost is negligible.

September 29, 2004 02:02 AM Forum: CCD Imaging and Processing/Solar System

Clavius

Posted By Doug Walton

nt

October 6, 2004 12:22 PM Forum: Equipment Talk

Prospective Obsession (or other large Dob owner) w

Posted By Doug Walton

Gregg, rather than getting into a long diatribe, I'll just suggest that you take a hard look at the Starmaster 20" and 24" scopes before you make your decision.

(For anyone else, this isn't an invitation for a debate - it's just my opinion on an important option.)

Doug

October 20, 2004 01:23 PM Forum: Equipment Talk

Is a Nagler as sharp as a Radian

Posted By Doug Walton

My two cents...

If long eye relief is not an issue, and especially if you prefer a short eye relief EP, then there are a lot of other options I'd consider over Radians. I use lots of Radians because I need and want the eye relief, and they've always worked well for me (although I'd probably dive into the more expensive Pentax offerings if/when I want to upgrade). For your situation, you have lots of great options.

I've always heard that Radians present a slight compromise in image quality over other short-eye-relief EPs in terms of contrast and sharpness. But, I'll let others with more direct experience using Naglers, orthos, TMBs, etc., chime in below.

Doug

October 27, 2004 08:33 PM Forum: Equipment Talk