Astromart

January 23, 2011 01:36 AM Forum: CCD Imaging and Processing/Deep Sky

IC 1848 in Narrowband

Cool image Eric. This object comes out really nice in the narrowbands.

I know what you mean about the noise reduction. My eye has gotten used to some noise and I am less distracted with noise than I am with oversmoothing. But I don't think there is one approach for all. I think each image and data set requires indicvidual consideration when it comes to noise reduction. So for me at least, it an image by image decision.

January 25, 2011 03:48 AM Forum: CCD Imaging and Processing/Deep Sky

Correcting Color Bias for Photoshop

Posted By Jim Thommes

Thanks for the tips Louie.

January 30, 2011 01:24 AM Forum: CCD Imaging and Processing/Deep Sky

Sharpless 261 (Lower's Nebula)

Posted By Jim Thommes

Thanks for the comments guys.

February 11, 2011 05:28 AM Forum: CCD Imaging and Processing/Deep Sky

Ring Galaxy IC 5285

Posted By Jim Thommes

Chris,
Cool shot of a cool galaxy.

February 11, 2011 05:43 AM Forum: CCD Imaging and Processing/Deep Sky

Fisrt Light Test of the AT65EDQ

Posted By Jim Thommes

Louie,
The image looks pretty good. I can see from the larger image where you may have some critical thought on the results, but as I say, pretty good results.

I'd bet more on the tad soft focus and chip match to the image plane. I'm not sure I would say field rotation unless you see the rotation from frame to frame to frame. You may see the corner stars with the same shape in each image - if so that would not be rotation.

Also, I'm not 100% sure, but I think a larger chip on a smaller scope like this is very sensitive to the CCD being precisely flat to the image plane.

My 2 cents worth.

February 11, 2011 05:48 AM Forum: CCD Imaging and Processing/Deep Sky

Comet 103P/Hartley and the Double Cluster

Posted By Jim Thommes

Nice one Eric,
It does take a bit of planning to do this. I think you pulled it off splendidly. Now I am intrigued and expectant at the possibility of more comets processed from you. (After all, you have already confessed you have the data.)

February 14, 2011 04:19 AM Forum: CCD Imaging and Processing/Deep Sky