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Captured by
Lawrence Parchman

Sculptor Galaxy (NGC 253)

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Posts Made By: Alex McConahay

March 29, 2005 03:28 AM Forum: Equipment Talk

Replacement diced foam

Posted By Alex McConahay
S&W Plastics in the SOuthern California area. Unfortunately, you have to buy a big sheet of it.

Alex

April 17, 2005 12:04 AM Forum: CCD Imaging and Processing/Solar System

Solar Eclipse

Posted By Alex McConahay
And so, just a couple of minutes before second contact, the coulds thinned, but did not disappear. My camera was still on its tripod, and aimed and focused. So, I snapped off a series of exposures while I watched visually. This is one of the exposures. (Same details as before, but I believe this exposure is 1/400th of a second). The clouds were thick enough to ruin sharpness, and the whole sky was aglow, so we saw no corona or other phenomenom. Naked eye there was just a big glow, but with plastic eclipse viewers, or through the SLR's viewer, there was a ring. However, that annularity was most fleeting.

Alex


April 18, 2005 04:46 AM Forum: CCD Imaging and Processing/Deep Sky

Best Photo Printer for under $500.00

Posted By Alex McConahay
My buddy just bought a Canon--I forget the model. He was quite impressed. He was moving up from an i950 not because he was dissatisfied, but because his son needed a printer, and he figured he might as well give the 950 away while he stepped up. (Which means to say, he knows quality printing.)

Alex

April 18, 2005 11:53 PM Forum: Equipment Talk

Celestron CG-5 Mount / Motor Problems

Posted By Alex McConahay
DOes one part of clutch move without the other?
Check to see that there is a washer between the two brass pieces of the clutch.
Check that the clutch parts are on their respective shafts correctly (with the set screw tight enough.

Alex

April 22, 2005 05:28 AM Forum: Digital SLR AstroPhotography

New Rebel XT

Posted By Alex McConahay
I don't know the exact distance from the front of the mount to the film (chip?) plane. But isn't it the same as the film cameras? I mean, it is a Digital Rebel, right? And the whole idea is that it uses the whole EOS system of lenses.

I know on my 20 D, I can use any of my EOS lenses with full compatibility in metering, focusing, zoom info, whatever.

It should be noted that the lenses designed for the digital camera do not work on the film cameras. But the film lenses work on the digital.

At least that is true for my 20D.

Alex

April 22, 2005 01:18 PM Forum: Digital SLR AstroPhotography

Canon 20D on a 8" SCT

Posted By Alex McConahay
Peter,

The standard eyepeice projection adapter usually unscrews into parts, one of which is the 1.25 adapter that fits into a focuser on one side, and accepts a t-ring on the other.

However, you probably want to stay away from eyepiece projection itself until you get better at some of the other challenges. It is mainly used for high magnification of small objects, not deep sky.

Alex

April 25, 2005 12:30 AM Forum: CCD Imaging and Processing/Deep Sky

Is this the current best astrophotographer?

Posted By Alex McConahay
Certainly good, but the question is a little like "Who is the best singer in the world?"

Alex

April 26, 2005 01:30 PM Forum: CCD Imaging and Processing/Deep Sky

Introduction

Posted By Alex McConahay
Hi Duncan!
Welcome to the Forum.

Alex

April 27, 2005 12:45 PM Forum: CCD Imaging and Processing/Deep Sky

Fun with Hubble

Posted By Alex McConahay
Would I get results like that on the right if I promise to throw my scope into the ocean sometime in the next five years?

Alex

May 4, 2005 01:55 PM Forum: Deep Sky Observing

Starting an Astronomy Club

Posted By Alex McConahay
Daryl,

I'd have to agree with everything Bob has said.

Also, I think you should seriously consider joining an existing astronomy club rather than starting your own. Even if you have to drive an hour to their meetings, it is probably better than trying to start one up by yourself. It does not make a whole lot of sense to have two small astronomy clubs when one larger one is more effective. For many of the club's activities you will be driving anyway, so it may not matter that they are some distance away.

Alex

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