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Lion Nebula SH2-132 - RC71

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Posts Made By: Andrew Chatman

October 30, 2002 10:20 PM Forum: CCD Imaging and Processing/Solar System

NGC 891 - Canon D60 with C14 @ F7

Posted By Andrew Chatman
Hi Mike,

I've watched your posts carefully, as I'm considering selling my E20 and getting a D60.

This image is beautiful, but there's something about the stars that just doesn't look right to me. I can't put my finger on it. Did you do anything special in the processing? It's almost as if they look like cutouts instead of stars.

Just wondering. Keep it up! You're an ad for Canon.

macnmotion

November 1, 2002 11:50 AM Forum: CCD Imaging and Processing/Solar System

NGC 891 - Canon D60 with C14 @ F7

Posted By Andrew Chatman
Have you done any piggyback with the D60? Is is at all suited for this task? Would you take multiple shorter exposures in such a case and stack, or a longer exposure with the D60?

Thanks. macnmotion

November 14, 2002 09:36 PM Forum: Film Astrophotography - Imaging and Processing

First Moon Shot

Posted By Andrew Chatman
Terrific shot. Did you use a neutral density filter to cut down on the light? Can you post the exif details, so I know where to start with my D60?

Thanks. macnmotion

February 18, 2003 02:31 AM Forum: CCD Imaging and Processing/Solar System

Red screen cover for laptop?

Posted By Andrew Chatman
Go to any art supply store, and buy a sheet of rubylith large enough to cover your screen. Then, take some cardboard (perhaps from something like a fedex box -- that thickness) and create a slip-over cover, where the front of the slip-over is made of the rubylith film. By creating this sleeve, you can be sure that the film will stay in place even in the wind. And when you remove it and store it flat, the cardboard backing will help protect the rubylith.

Alternatively, 4 pieces of tape will hold the rubylith in place nicely.

macnmotion

February 21, 2003 09:19 PM Forum: Film Astrophotography - Imaging and Processing

New Pic from New Set-up

Posted By Andrew Chatman
Beautiful. When you say no autoguiding, I'm assuming you at least did some manual guiding through the LX?

macnmotion

March 3, 2003 11:31 PM Forum: Equipment Talk

How to use telepod balancing plate?

Posted By Andrew Chatman

March 14, 2003 11:43 AM Forum: CCD Imaging and Processing/Solar System

my moon shot

Posted By Andrew Chatman
Travis, that's one heck of a first pick. Congratulations on a beautiful result. Keep it up!

macnmotion

April 13, 2003 12:28 PM Forum: CCD Imaging and Processing/Solar System

Gassendi near and far

Posted By Andrew Chatman
Hi Larry,

Very nice image.

I've been trying my hand at some moon photography, and tried eyepiece projection with my 8" SCT last night for the first time. I'm having some focusing trouble, here is my effort:

http://www.macnmotion.com/moonlx12mm/50ip.jpg

macnmotion

April 13, 2003 12:32 PM Forum: CCD Imaging and Processing/Solar System

Clavius Large

Posted By Andrew Chatman
Wes, a terrific image, with great detail.

Here is my (slightly less magnified) image of the same region from last night. It's my first attempt with ep projection with my LX200, and I have some focusing and tracking issues.

http://www.macnmotion.com/moonlx12mm/27ipandygin.jpg

macnmotion

April 22, 2003 12:39 AM Forum: Film Astrophotography - Imaging and Processing

Hat Trick?

Posted By Andrew Chatman
When you open your shutter on an SLR, the mirror pops up out of the way. This is a mechanical function. The result is some vibration within the camera. If the vibration does not dampen out before the shutter opens, it can result in a disruption to your focus for that portion of your exposure.

The "hat trick" involves covering the lens of the camera (or the objective of the telescope) by holding an object (like a hat) in front of the lens when you depress the shutter, and after waiting several seconds for the vibration to cease, pulling the hat out of the way.

Some SLRs have a mirror lockup function which you can use to move the mirror before depressing the shutter release. Of course, you must focus and compose before moving the mirror as once it is moved you cannot see through the viewfinder.

Hope this helps (and hope it's close to being right).

macnmotion

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