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Posts Made By: Brad Cottingham

September 9, 2002 02:46 PM Forum: Telescope Making

getting a flat coated

Posted By Brad Cottingham
Phil,

Just a thought: how about getting your flat coated locally at the same time as the primary. Then when you get your design perfected, and if you feel you need a better coating on the flat, you could have it done then.

In the USA, Spectrum seems to be top dog among those who do amateur optics.

Brad

October 7, 2002 10:46 PM Forum: Telescope Making

Now your full name appears

Posted By Brad Cottingham
Sounds good to me. (This actually a test to see if I spelled my name right when I registered:-)

Brad

October 24, 2002 04:06 AM Forum: Telescope Making

AstroSystems' Telekit

Posted By Brad Cottingham
Robert,

I note that no one's answered you, so I'll comment. A friend has one in the Amarillo, TX club. It looks very good. I think they have a good reputation, and I believe they are cutting wood for other manufactureres (supplying parts).

I've looked at their displays and catalogs at the Okie-Tex Star Party for the last couple of years and looks like quality stuff to me.

brad

November 12, 2002 02:27 PM Forum: Equipment Talk

Digital Slide Copying

Posted By Brad Cottingham
Got a link or part number?

Brad

November 19, 2002 11:47 PM Forum: Telescope Making

Designing a 6" single strut planteary Dob

Posted By Brad Cottingham
Do post pictures when you finish!

June 12, 2003 05:04 AM Forum: CCD Imaging and Processing/Solar System

Newbie Help Needed

Posted By Brad Cottingham
If the Phillips unit are ok, what about the Philips ToUcam XS PCVC720k ? I've located one of them.

Brad

June 19, 2003 03:44 AM Forum: CCD Imaging and Processing/Solar System

20030617 Mars (good seeing)

Posted By Brad Cottingham
That's great. Would you kindly post a single raw image so we can see how much improvement is made by stacking?

Brad

August 9, 2003 01:36 PM Forum: CCD Imaging and Processing/Solar System

Eyepiece Projection with Webcam?

Posted By Brad Cottingham
Hmm, is eyepiece projection the right term? I mean coupling the stock webcam up to an eyepiece without removing lens element.

Brad

September 2, 2003 06:29 PM Forum: Telescope Making

Dual Rate Focusers

Posted By Brad Cottingham
Floyd,

This is steering your question in another direction, but you might find the information useful.

I've currently got a Starmaster 11" with Feather Touch, but I've owned the same scope with the standard single rate focuser. I like the Feather Touch, but the single rate focuser does fine on a longer focal length scope. I'd guess somewhere around f/5 would be the break point. Shorter than the f/5 and any of the dual rate would do the job. Longer, like my f/5.4, single rate is acceptable.

Brad

September 4, 2003 06:15 PM Forum: CCD Imaging and Processing/Solar System

Registax "failed to decompress error"

Posted By Brad Cottingham
I had same problem and received a link to a beta version that fix the same problem after using the "report problems by email" tab. That beta version may be the current supplied, so if it's been a couple of weeks since you downloaded the version 2, download and reinstall, may be a later version than you have. If you then have the same problem, I'd then use the "report problems" tab.

Brad

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