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Posts Made By: Joe Baldwin

March 23, 2004 08:28 AM Forum: CCD Imaging and Processing/Solar System

Double Transit!

Posted By Joe Baldwin

Very nice.

March 26, 2004 06:47 AM Forum: CCD Imaging and Processing/Solar System

Double Transit Animation

Posted By Joe Baldwin

Very nice. I can't wait for the triple. By the way, its was faster for me to download the file by right clicking and then opening it with IE than it was to wait for it to load directly into the browser

March 31, 2004 01:01 PM Forum: CCD Imaging and Processing/Solar System

My Jupiter DoubleTransit from CT.

Posted By Joe Baldwin

Very nice detail. The moons suggest your collimation is spot on.

April 7, 2004 09:49 AM Forum: CCD Imaging and Processing/Solar System

SCT Image Quality: Maybe a little OT

Posted By Joe Baldwin

The issue of central obstruction aside, I think the most critical factors for high resolution imaging are adequate signal/noise ratio and minimizing the amount of smearing due to atmospheric turbulence. A larger aperture simply provides more photons allowing the use of faster shutter speeds and lower gains resulting in better resolution of fine datails. In a nutshell, aperture wins.

April 12, 2004 07:27 AM Forum: CCD Imaging and Processing/Solar System

jupiter 10th April 2004

Posted By Joe Baldwin

simply stunning

April 23, 2004 07:28 AM Forum: CCD Imaging and Processing/Solar System

AIP4Win Features?

Posted By Joe Baldwin


I have not used AstroArt extensively and have no experience with MaximDL/CCD but have used AIP4Win, Paint shop Pro and Adobe Photoshop. AIP4Win (the book) is, in my opinion, the best reference work available for ccd imaging. Every detail of ccd operation is covered in the context of producing the highest quality image. There is coverage for all major ccd endeavors; planetary imaging, photometry, astrometry, RGB imaging etc. The software provided performs all these basic functions at some level. However, the program is a little difficult to use for everday use. Its like the jack-of-all-trades, it does everything but it doesn't do any one thing really well. It really just gives you enough functionality to learn the techniques. For example, it has the capability to stack planetary images but it is very time consuming so I use Registax for that. It can be used for adjusting the final brightness and contrast but I find it so frustrating that I'll use Paint Shop Pro for that. In summary, buy the book for the wealth of knowledge it provides but don't count on the software much beyond the tutorials.

May 11, 2004 07:49 AM Forum: CCD Imaging and Processing/Solar System

Monochrome Jupiter

Posted By Joe Baldwin

Looks like some very fine detail lurking in there. Have you tried using any filters? I've found that using an IR blocking filter makes some improvement in contrast with monochrome sensors, especially on jupiter. By the way, are you planning to do Lrgb imaging with this camera?

May 12, 2004 07:11 AM Forum: DVDs and Music and Books That You Recommend

Oooh, I want one of these:

Posted By Joe Baldwin

Check out the bulb replacement costs. Good bulbs are from $200 to $400 and typically last 1000 to 2000 hours. If you only play movies it is not too bad but it becomes cost prohibitive ( for me) if it is used for broadcast/cable.

May 26, 2004 05:56 AM Forum: CCD Imaging and Processing/Solar System

Is an old orange C8 suitable for ccd astrophotography ?

Posted By Joe Baldwin

I think most Celestron fork mounts can be upgraded with a declination motor. If your drive base doesn't have a jack for the dec motor you would use a seperate hand control. The only issue then would be finding/making a custom cable to connect to the autoguider. Alternately, you could find a more recent version of the drive base, Celestar, Ultima etc. that has the dec. motor control built in. These show up in the classifieds from time to time.

June 11, 2004 10:22 AM Forum: CCD Imaging and Processing/Solar System