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Imaging


Straight Forward Prime Focus

Horsehead Nebula

Occultation of Jupiter taken by Johan Moolman
using 18" UC Obsession.

Jupiter grazing occultation - Nov. 2, 2012

Hi Dave

Talking about having fun – the 18 inch Obsession + Canon DSLR (7D and 5D) – no stacking etc. – just straight forward prime focus (bottom part of a barlow lens -  attached to camera adaptor/ nose piece).

We were fortunate to see a grazing occultation and the photon shields (clouds) stayed away JUST long enough!!

Keep well.

Johan Moolman
Pretoria, South Africa



CCD and video astrophotography

Horsehead Nebula

The Horsehead Nebula, B33 - photogpaphed by Glenn Schaeffer using 20" Obsession. Visit his websiteexternal link icon

Imaging with a large aperture reflector like the Obsession is exciting. The large light gathering area means CCD exposure times are very short - usually under a minute. Minimal guiding or none at all. Multiple images are stacked in your PC to build up a vivid image. With proper software, field rotation at the focuser is elliminated.

Live video work is the ultimate in immediate gratification. The newer cameras are very sensitive. Entertain a crowd with deep sky images on the monitor. Actually see deeper than you can with eye at the eyepiece in real time! Or connect to a DVD camcorder or VCR and capture the video to watch later. Or make stills of the best shots.


To learn more about imaging with an Obsession, please see the work of these Obsession owners:

CCD imaging Glenn Schaeffer 20" Santa Fe, Texasexternal link icon

CCD imaging Pierre Schmid 15" Switzerlandexternal link icon

Webcam imaging Becky Coretti 15" Ft. Lauderdale, Floridaexternal link icon

Video stills by Dave Kriege 25" Lake Mills, Wisconsin


Johannes Brachtendorf photos

These images were taken by Johannes Brachtendorf in Rottenburg Germany with an 18" Obsession / ServoCAT / software derotation - no plattform, no derotator, no adaptive optics.

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NGC 4656


Todd Kozikowski photos

These images were taken by Todd Kozikowski in New Boston, New Hampshire with an 18" Obsession and ServoCAT.

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Becky Coretti photos

Occultation of Jupiter taken by Becky Correti and Bill Williams with web cam and 15" Obsession. This photo series also appears in the April 2005 issue of Sky and Telescope on page 132. Visit Becky's websiteexternal link icon

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Doug Murphy photos

Hi Dave, Long time, no write! Clearly, I’ve been having a good time with my 18UC. As you saw from the post I do a lot of video-astro imaging with MallinCam from the back yard, but the video provides a live feel to observing that guests and visitors get excited about, and the views with extreme light pollution in suburban DC are like views you can get in a 50 inch under dark skies. And then again there’s the color. It's a great way to go. Feel free to use these photos. Emphasize that they are just video frames. They match very closely what you can see live looking at the color monitor next to the scope. Here are the conditions:

So you see, I’ve been lovin my 18UC and having a wonderful time with the stars. My mirror is a beauty. These are recent photos of the March skies.

Doug Murphy, Leesburg, Virginia

Doug Murphy

Doug Murphy
Doug Murphy

Doug Murphy
Doug Murphy

Doug Murphy
Doug Murphy

Doug Murphy


Mikael Svalgaard photos

These images were captured by Mikael Svalgaard with his 18" Classic Obsession and a Lumenera Skynyx Astro Camera. Visit Mikael Svalgaard's websiteexternal link icon

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Setup & Processing detailsexternal link icon

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Setup & Processing detailsexternal link icon

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Setup & Processing detailsexternal link icon