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RICHARD COFER

VdB 141 Ghost Nebula

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Posts Made By: Roland Christen

August 2, 2005 11:21 PM Forum: CCD Imaging and Processing/Solar System

Martian Volcanoes

Posted By Roland Christen

AAAwsome!

Rolando

August 4, 2005 04:57 PM Forum: CCD Imaging and Processing/Solar System

Clavius enlargment

Posted By Roland Christen

There is a lot of edge ringing in your image. Is that because of the way the individual images line up, or the camera itself, or the way you processed or sharpened the image?

Roland Christen

August 5, 2005 02:17 PM Forum: CCD Imaging and Processing/Deep Sky

Finally!! The clouds left.... Cocoon (HaR)RGB

Posted By Roland Christen

Beautiful composition.

Roland Christen

August 5, 2005 10:30 PM Forum: Equipment Talk

Pinholes in Coatings?

Posted By Roland Christen

Looks like splatter marks to me. Caused during the coating process. Splatter marks (some call then spit marks) are little spherical nodules caused by too fast application of the overcoat.

Roland Christen

August 8, 2005 02:32 PM Forum: CCD Imaging and Processing/Deep Sky

My first M31 of the year

Posted By Roland Christen

Really beautiful.

Roland Christen

August 8, 2005 05:06 PM Forum: CCD Imaging and Processing/Solar System

Hires Wilhelm

Posted By Roland Christen

Feels like I could reach down and touch the dirt.

Roland Christen

August 9, 2005 06:31 PM Forum: CCD Imaging and Processing/Solar System

mars from sunday

Posted By Roland Christen

Looks pretty darn good to me.

Roland Christen

August 19, 2005 02:46 PM Forum: Refractors

Vixen ED Refractors

Posted By Roland Christen

Yes, those of us who design and make refractors all know what Vixen is making. The term "Krus flint" is just a wrong spelling of the German "Kurz Flint" which is a generic term for a crown-flint glass (i.e. one with a dispersion of between 45 and 55). It means very little. I suspect that it was a marketeer sitting in on an engineering meeting, getting the spelling wrong on a term which sounded good to him for advertising purposes.

Roland Christen

August 22, 2005 08:07 PM Forum: CCD Imaging and Processing/Solar System

OT-Sweating It Out With an 8" Refractor

Posted By Roland Christen

Your article brings back many fond memories of my early observing days.
Even today I like being at my telescope in the observatory, in the silence of the night. All cares melt away.

Very well written.

Roland Christen

August 25, 2005 11:22 PM Forum: Refractors

Is there a focal reducer for Meade 102ed?

Posted By Roland Christen

Astro-Physics offers a .67x made for CCD imaging. It screws into the nosepiece of an SBIG camera, or any camera with 45mm filter thread in front.

Roland Christen