[LVAS] Cone Nebula - Late Submission

[Fred Rayworth]

Dave,

 

Yup, it said f/11 as Roger confirmed. I am assuming he used prime focus because he doesn't mention a focal reducer.

 

Fred


 


From: drivester at hotmail.com
To: lvas at lvlug.org
Date: Sun, 28 Feb 2010 10:17:34 +0000
Subject: Re: [LVAS] Cone Nebula - Late Submission



David,
 
Re: f/11 
 
I went to Franks website at www.celestialwonders.com and it says f/11 also. This is the same image that Fred presented.
 
I have already sent an e-mail asking Frank about this, and will forward his reply. I did not mean to reply for Fred, but it is (5:00 AM EST) and our spoiled Persian Cat woke me up wanting to be fed. I did not feel like going back to bed, so I just turned my computer on and saw your inquiry. I did not think that Fred would be up at 2:00 AM on a Sunday morning. Ha!
 
Roger 
 

 


Date: Sat, 27 Feb 2010 22:13:21 -0800
To: lvas at lvlug.org
From: Yahoo at awit.com
Subject: Re: [LVAS] Cone Nebula - Late Submission

You sure he said f/11?  I got pretty much the same FOV in my picture (on the Observer's Challenge pages), but I needed a focal reducer for f/6.3.  Did he maybe stitch some images together?

-- David

At 05:29 PM 2/27/2010, you wrote:

Frank Barrett took an outstanding image of the Cone and the Christmas Tree Cluster. We didnt' get it in time for the challenge, but here it is.

On Feb 19, 2010, Frank took this photo of the Cone Nebula and Christmas Tree Cluster from his observatory in Gastonia, NC. He used a Meade 10” LX200R, with a 2800mm focal length, at f/11. The exposure 40 minutes using an SBIG STL-11000M camera. His mount is a Losmandy G11 with an Ovision worm upgrade.
 
I have also posted this on the Club Forum.
 
Fred
 



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