Astrozoid

Hi Rudy, That looks excellent.  What software did you use and how did you process it? Jerry

No, sorry, no eclipse practice frames. Jerry

For stacking frames to improve the signal-to-noise ratio, then a couple of seconds out of a minute is not going to matter. For star trails there is going to be a minimum amount of time the camera ...

No. About the same with blue objects. Ha is a little less with the CLS-CCD. Jerry

No, I'm not stuck on the histogram. In fact, I never even looked at the histogram. It's that I can very easily see it visually that it is not white and has some tone and incorrect color. Jerry

Sure Roger, I'll send you the link to the raw stacked data in a private email. Jerry

No, if you have a UV-IR cutoff in the camera you don't need the CLS-CCD.  But one day you might get a full-spectrum modified camera and then you would need the CLS-CCD. I noticed a difference with ...

Let's talk about your processing for a moment. You realize that once the data is clipped in the camera, like the core of M42, that not setting that to white like you have done in your processing ...

Hi jammeymc, Thanks for your critique of my work. Do you have a link to your web page or other gallery where I might see some of your work? Jerry

CLS-CCD. Jerry

You need the UV-IR cutoff in the CLS-CCD for refractive optics. Jerry

Do you have a link to the finished image? What is the cost of your product? Jerry

Hi, You did a good job, but the core of the nebula has some color and tone that it should not have. It was clipped in the original data, so it should be pure white. That means you have some unused ...

Hi Roger, you are right the captions need that.  I meant to do it, but I forgot. I will correct it. Thanks, Jerry

The filter does technically decrease the nebula signal, but it is a trivial amount. It is not the post processing that is different. It is the s/n gain that the filter gives that accounts for the ...

That looks pretty good, but you don't have much star color. Jerry

It's simple. The filter removes light pollution and sky glow, and their associated shot noise . This increases the signal-to-noise ratio between the background sky and nebula. That's how filters ...

Hi Roger, The processed images are on the page with the download links, so I'm not sure what you are talking about... Jerry

Hi Roger, Well, you can disagree all you want, but I can tell you, absolutely and unequivocally, that the exact same non-linear curve was applied to both images. Jerry

I would keep,the CLS-CCD. Which is exactly what I did when I had both also. Jerry