User Links for
 nheacock







CURRENT MOON
(North America)
History
209 Entries
08/21/17
09/13/15
08/16/15
07/18/15
06/14/15
05/28/15
06/17/12
06/05/12
05/18/12
05/15/12
05/13/12
05/12/12
05/11/12
08/31/11
07/01/11
06/24/11
06/01/11
04/29/11
04/22/11
04/19/11
04/18/11
03/28/11
03/27/11
03/22/11
03/14/11
02/25/11
02/17/11
02/08/11
02/01/11
01/31/11
01/02/11
12/30/10
10/13/10
09/12/10
08/28/10
08/15/10
07/17/10
07/11/10
07/07/10
06/14/10
06/07/10
05/20/10
04/24/10
04/10/10
03/22/10
03/18/10
03/15/10
03/05/10
02/21/10
02/09/10
01/13/10
12/14/09
12/09/09
12/08/09
12/05/09
12/01/09
11/24/09
11/01/09
09/24/09
09/19/09
09/01/09
08/30/09
08/22/09
08/15/09
08/12/09
07/25/09
07/22/09
• 07/21/09
07/02/09
07/01/09
06/29/09
06/22/09
06/15/09
05/22/09
05/21/09
05/20/09
05/07/09
04/30/09
04/24/09
04/20/09
03/29/09
03/27/09
03/26/09
03/06/09
02/28/09
02/15/09
01/19/09
09/27/08
09/25/08
09/22/08
08/27/08
08/03/08
07/25/08
07/24/08
07/11/08
07/07/08
07/06/08
07/04/08
07/02/08
06/27/08
06/24/08
06/12/08
05/03/08
04/30/08
04/11/08
03/24/08
03/05/08
02/21/08
02/17/08
02/16/08
01/15/08
11/06/07
09/11/07
08/28/07
08/18/07
07/26/07
07/13/07
07/10/07
07/09/07
06/15/07
05/14/07
05/10/07
05/07/07
04/22/07
04/15/07
03/16/07
12/17/06
12/02/06
08/27/06
07/23/06
07/20/06
07/19/06
07/16/06
06/23/06
06/13/06
06/10/06
05/22/06
05/02/06
04/28/06
04/23/06
04/01/06
03/11/06
02/12/06
01/25/06
11/09/05
11/08/05
10/27/05
09/27/05
09/12/05
08/01/05
07/29/05
07/25/05
07/24/05
07/18/05
07/14/05
07/09/05
07/04/05
06/26/05
06/18/05
05/06/05
03/12/05
03/11/05
01/10/05
01/02/05
12/30/04
12/06/04
11/03/04
11/01/04
09/22/04
09/21/04
09/10/04
09/06/04
09/05/04
08/13/04
08/08/04
08/07/04
08/06/04
08/03/04
07/20/04
07/12/04
07/10/04
07/08/04
07/06/04
07/05/04
06/28/04
06/22/04
06/19/04
06/18/04
06/16/04
06/15/04
06/14/04
05/31/04
05/23/04
05/14/04
05/09/04
05/08/04
04/30/04
04/25/04
04/23/04
04/22/04
04/21/04
04/19/04
04/09/04
04/01/04
03/30/04
03/29/04
03/08/04
03/02/04
02/24/04
    
Tuesday, July 21st, 2009
Tonight I tried the new model of the William Optics 0.8x Focal Reducer/Field Flattener that has a new design where the barrel screws off revealing SCT threads which in turn screw the FR/FF directly onto the draw tube of the ZenithStar 66. Of course, the camera attaches to the T-thread directly onto the reducer so there are no compression rings or thumbscrews involved in the mounting. Very nice design.
I was pleasantly surprised to see how flat the corner stars were. Not perfect, but not bad either. A slight crop produces a nice image of where 90% or more of the frame is retained. The less picky could definitely retain the entire image, but I personally would like my entire field as even as possible.

The resulting field is roughly 4.25 x 2.75 degrees. A nice wide field.

2 test shots consist of an hour of M31 and an hour and a half of the North American and the Pelican.

I'm also including a screenshot of guiding through the R200SS at 800mm and how a graph with 2 pixels of swing produces quite decent shots when imaging at only 310mm.

M31 Image
I wanted to see how much of the frame was salvageable when shooting M31 and was quite pleased with both the stars and the amount of sky surrounding the galaxy group. Coming from larger aperture scopes, I'm not quite used to the fact that this little scope definitely needs more time for acquisition, but that's okay with me to be able to get such a fantastically framed image.

Scope: William Optics ZenithStar 66 SD @ f/4.7 310mm w/WO-FLAT-II FF-FR
Mount: Orion Sirius EQ-G with GoTo
Guiding:  Meade DSI Pro and PHD Guiding
Guide Scope: Vixen R200SS
Camera: Canon EOS 20D (unmodified)
Special Settings: None
ISO: 800
Exposure: 60 minutes - (12 x 300s)
Processing Software: Acquired in Nebulosity, Stacked in Deep Sky Stacker, Levels, Curves and Noise Ninja in Photoshop
 

North American/Pelican Nebula Image
I was very stoked to learn that both of these object will fit nicely in the FOV. When I'm at dark skies I will shoot this pair again and this time probably shoot 2 hours.

Scope: William Optics ZenithStar 66 SD @ f/4.7 310mm w/WO-FLAT-II FF-FR
Mount: Orion Sirius EQ-G with GoTo
Guiding:  Meade DSI Pro and PHD Guiding
Guide Scope: Vixen R200SS
Camera: Canon EOS 20D (unmodified)
Special Settings: None
ISO: 800
Exposure: 90 minutes - (18 x 300s)
Processing Software: Acquired in Nebulosity, Stacked in Deep Sky Stacker, Levels, Curves and Noise Ninja in Photoshop


Image Gallery For This Session
01 M31 1h 02 NAN Pelican 1h 30m
03 Screenshot
   

01-M31-1h.jpg
Click picture above for larger version
If the picture seems too bright or too dark, try adjusting the brightness below.
Brightness:
|
  



Comments:
On 07/22/09 at 08:36pm Dave wrote:
That is great !!
I have yet to try it...



Add A Comment:
Your Name (optional):

*Your Comment:



CAPTCHA Image   Reload Image
Enter Code*:


NOTE: Comments are moderated and do not post immediately.



© 2008 Triad Technology Systems | www.triadtechsys.com