Re: [APML] NGC 6914 Tech Pan Tri-color and CCD comparison

[Matt BenDaniel <matt@starmatt.com>]

Interesting. CCD for color, and film for luminosity. I like the contrast and star colors of the tech pan version better. The CCD-only image is smoother and deeper, but it's too red.

I have a 6914 from Arizona that I am processing now. I'll post a message when it's on my web site.

At 11:56 PM 10/30/2001 -0500, Mike Cook, AF9Y wrote:
>Chuck Vaughn and I have been comparing NGC6914 CCD and
>Tech Pan images.  Here is a webpage showing both images:
>
>http://www.webcom.com/af9y/ngc6914ccd.htm
>
>(thanks to BenDaniel for the java tip)
>
>One thing that you will notice is that the Tech Pan image has
>extra blue in the lower half of the image.  Chuck believes this
>is due to the extra UV portion of the spectrum include in the
>Tech Pan image but not in the CCD.  I have my doubts that
>there would be such an abrupt drop off going from top to
>bottom.
>
>Anyway, we're wondering if anyone out there has another
>ngc6914 color image for comparison.  It would be especially
>good if anyone else is using a wider blue filter.
>
>Thanks,
>
>
>
>
>
>Mike Cook, AF9Y
>http://www.webcom.com/af9y
>mwcook@cris.com
>
>
>
>
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--
Matt BenDaniel
http://starmatt.com


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