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RICHARD COFER

VdB 141 Ghost Nebula

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Posts Made By: Roland Christen

January 30, 2007 10:39 PM Forum: CCD Imaging and Processing/Deep Sky

Congratulations-Jim Thommes!

Posted By Roland Christen

How cool? That's super-cool!

Rolando

February 2, 2007 01:21 AM Forum: CCD Imaging and Processing/Deep Sky

IC405/IC410, The Rosette Nebula, and the Californi

Posted By Roland Christen

All images are excellent work.

Rolando

February 2, 2007 03:59 PM Forum: CCD Imaging and Processing/Deep Sky

Sharpless 2-240

Posted By Roland Christen

That's pretty impressive. You must have some very clear air above.

Rolando

February 2, 2007 09:55 PM Forum: CCD Imaging and Processing/Deep Sky

IC405 Flaming Star

Posted By Roland Christen

This is a combination of first and second night's imaging. The sky was not as clear, unfortunately, so the very faintest detail did not record as well, but I was able to get the chip down to -35C without frost.

155EDF with TCC @ F5.3, 85 minutes total exposure, STL11K, Mach 1 mount.

Rolando

February 3, 2007 04:43 PM Forum: Refractors

Evaluating the New William Optics FLT 132mm

Posted By Roland Christen

>>I am wondering what is causing the dark lanes at 120 degree angles?>>

The lens spacers are in the optical path.

Rolando

February 5, 2007 09:19 PM Forum: Astro-Physics

Pure sex - the setup

Posted By Roland Christen

Here is a screen shot of the system being controlled by MaximDL. Note the flawless sub-pixel guiding (for a period of 2 hours in below zero temperatures), the resultant FWHM star sizes, guided through an H-alpha filter with guide exposures of 5 seconds (could easily have gone 30 seconds without meaningful errors). Those of you who are doing imaging will know what this means ...

Rolando

February 5, 2007 10:18 PM Forum: CCD Imaging and Processing/Deep Sky

Not to beat a dead horse......

Posted By Roland Christen

Very nice result. By the way, I'm almost finished testing the F5.3TCC for the 155EDF. Take a look at the AP folder.

Rolando

February 6, 2007 12:46 AM Forum: CCD Imaging and Processing/Deep Sky

Beating the Horse... Again :0)

Posted By Roland Christen

That's very impressive!

Rolando

February 8, 2007 04:47 PM Forum: CCD Imaging and Processing/Deep Sky

What is the cost of astrophotography?

Posted By Roland Christen

What is the cost of hitting a small ball down the fairway? You could watch a master do it better on TV. What is the cost of that fish you pulled in while sitting in that boat in the middle of the lake? You could buy it cheaper at the local super market (and bigger too!).

Rolando

February 8, 2007 07:07 PM Forum: Equipment Talk

Is GOTO worth it?

Posted By Roland Christen

GoTo is indispensible for astrophotography. You can do it without, but it becomes a pain and is not very productive.

The night is short and I'm not young anymore.

Rolando