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Old 15-02-2011, 04:31 PM
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alexch (Alex)
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Join Date: Dec 2008
Location: Melbourne
Posts: 773
A few images taken with SDM Dob

Hi All,

The Weather Gods were a bit more accommodating this Saturday and sent some patches between the clouds. I've got all the adaptors and couldn't wait to try more imaging with my 22" f/3.6 SDM Dob and Sony NEX-5 mirrorless camera with Paracorr Type II.

I intended to do dark frames in the fridge at home, however it seems that Adobe Camera Raw in Photoshop CS5 deals with hot pixels quite efficiently. Also the Servocat Alt-Az motors want to correct the pointing every now and again and limit the exposure time to no more than 15 seconds.

Full-size images and equipment shots are here:
http://www.terrastro.com/galleries/deep-space-hr/

Low-res images are attached below.

I have a lot to see visually yet so I am doing the imaging just for fun without much skill involved and have no intention to get into EQ platforms or expensive field de-rotators. (Please remind me about that frequently...)

Thanks for looking.
Alex

Omega Centauri (NGC 5139): 3 x 10sec, ISO 3200
Jewel Box (NGC 4755): 3 x 15sec, ISO 3200
Centaurus A (NGC 5128): 17 x 15sec, ISO 3200
Keyhole Nebula (in NGC 3372): 8 x 15sec, ISO 3200
Orion Nebula (NGC 1976): 9 x 8sec, ISO 3200

Processed in DeepSkyStacker and Photoshop CS5
Attached Thumbnails
Click for full-size image (Omega Centauri (NGC 5139).jpg)
196.5 KB706 views
Click for full-size image (Jewel Box (NGC 4755).jpg)
194.2 KB591 views
Click for full-size image (Centaurus A (NGC 5128).jpg)
179.5 KB934 views
Click for full-size image (Keyhole Nebula (part of NGC 3372).jpg)
193.5 KB762 views
Click for full-size image (Orion Nebula (NGC 1976).jpg)
110.9 KB864 views

Last edited by alexch; 15-02-2011 at 04:47 PM.
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