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Wade Hilmo
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- Wade Hilmo
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Comments
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Hi Adam, Regarding your comment above about hardware binning and read noise, that applies only to CCD cameras. CCD cameras have a single analog-to-digital converter and they run all of the pixels through it during read out. When you bin a CCD camer…
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I used MureDenoise with my ASI1600 mono camera and it worked every bit as well as it goes in your lessons on the script. It was so good, that I consider it an essential tool. I believe that the caveat is that you need to be very consistent about g…
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Well, the exercise that I described will give you the dark current information for your camera, expressed in ADU's. A couple of obvious comparisons would be to the read noise for your camera, or the shot noise for the master dark you used in the tes…
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One way to approach this question objectively would be to do the following exercise with your camera: Create a master bias from at least 15 raw bias frames.Create a master dark from at least 15 dark frames. The duration of the dark should be someth…
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I notice that I didn't acknowledge the "multi-night" part in the thread title. Most of my objects are multi-night projects. In that case, I still create the nightly session zip files as above. In that case, there will be multiple zip files with da…
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There is no, single, right answer for file management. Here is what I do. Other folks might do something completely different: I image automated. Each morning after an imaging run, I collect all of the log files from each piece of involved softwa…
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Hi Adam, I went to download this video and the option to "save as" is not available when I play it.
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Whether flat darks are easy or difficult depends on your workflow. If you use a flat panel, with identical exposures for each raw flat, then flat darks are trivial. I do sky flats, with adjustments to the exposure time between each raw flat. It wo…
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That worked! Thanks,-Wade
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I know that most people would probably not like the email notifications, which is why I requested it as an option. Regarding the login page, I let the site remember my credentials, so the only way that I can see the list of new content is to log out…
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Along similar lines, my feature request would be to be able to register for an email notification for whenever you post new content.
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I'm not sure that your telescope is working properly. As a refractor, it should have no diffraction spikes at all. I have a 102mm ED Astro-Tech scope. When I first bought it, it produced very similar effects (but I had 4 spikes, not 6). The issue…
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Normally, I like to use as few samples as I can. It's very unusual that I have more than a dozen manually placed samples in a single image. This was in interesting case for me because of the uncorrected, and non-symmetrical, halo of light. I was s…
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Thanks for the data. I loaded the image and configured DBE with a tolerance of 10 and 20 samples per row. I then moved each of the samples away from the edge. To ensure clean samples, I reduced the tolerance back to 1 and then blinked through each…
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I have a quick question on this video. Near the beginning of the video, you showed the background model, created with the default sample placement. In that model, the galaxy was clearly visible as a very bright glow in the center. I knew from that…
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Great! Thanks!
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You should run CosmeticCorrection (and all other calibration type operations) before doing StarAlign.
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That's expected behavior. In order for the math to be correct, both the master flat and the target image must be properly bias and/or dark calibrated. If everything is not calibrated correctly, you can get over or under correction, depending on wha…
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Regarding the process icons, an icon for an actual process will expand into the associated process with the parameters set. An icon for a script will expand into a box that contains parameters for the script. It sounds like you might be double clic…
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I watched the SubframeSelector videos last night and this morning and really enjoyed them. I've always thought that the "conventional wisdom" about using FWHM, Eccentricity and SNRWeight was a bit different from what I wanted. I really like the ide…