Santa Fe Stargazers Inc. » All Posts https://www.santafestargazers.org/forums/feed/ Sun, 11 Oct 2026 11:44:14 +0000 https://bbpress.org/?v=2.6.19 en-US https://www.santafestargazers.org/forums/topic/seestar-s50-pro-vs-dwarflabs-draco/#post-2323 Seestar S50 Pro vs Dwarflabs Draco https://www.santafestargazers.org/forums/topic/seestar-s50-pro-vs-dwarflabs-draco/#post-2323 Fri, 11 Sep 2026 22:27:04 +0000 carpephoton In our last AP-SIG meeting I was pondering how they do a 2×2 binning with a one-shot color (OSC) sensor. The answer is very simple, and has to do with the other observation I made about how binning in CMOS sensors is not the same (perhaps shouldn’t be called binning?) as in CCD sensors: Because the binning is done in software it doesn’t matter how the Bayer array is structured, as long as the software knows the structure. Specifically, I think the 50MP sensor has exactly the Bayer array you would expect, with a 2×2 area having 1 red, 1 blue, and 2 green photosites. This is almost the “obvious” way to deal with a OSC sensor: Each 2×2 area produces 1 RGB pixel. In reality, the processing is probably a bit more complicated than that, but this is a good first-order approximation.

The non-binned case is what is typically used in a OSC camera, although it is less obvious: Each 2×2 area produces a single RGB value as described above, which can then be used to define a luminance value for each of the 4 photosites. For example, when looking at the “red” photosite we can determine what the luminance value is by factoring in the transmission of the red filter for the overall (2×2 area) luminance. It will generally be VERY close to the overall luminance, but where there is a sharp edge (a transition in luminance) there can be a significant difference in the effective luminance for each photosite. Again, this is a simplification of what really happens in processing, but is a good approximation.

]]> https://www.santafestargazers.org/forums/topic/cowboy-shack-scheduled-events/#post-2319 Cowboy Shack Scheduled Events https://www.santafestargazers.org/forums/topic/cowboy-shack-scheduled-events/#post-2319 Wed, 02 Sep 2026 22:40:52 +0000 Fernando Torres This space is for the current calendar of events. Each date shall have its own Topic to exchange information, comments, photos taken, or suggestions.

]]> https://www.santafestargazers.org/forums/topic/how-do-i-start/#post-2169 How do I start? https://www.santafestargazers.org/forums/topic/how-do-i-start/#post-2169 Mon, 03 Aug 2026 05:14:14 +0000 Fdo Torr What are the recommendations?

]]> https://www.santafestargazers.org/forums/topic/about-this-forum/#post-2166 Reply To: About this Forum https://www.santafestargazers.org/forums/topic/about-this-forum/#post-2166 Mon, 03 Aug 2026 01:27:17 +0000 Fdo Torr Our goal is to exchange information, tips, techniques, lessons learned, as well as other relevant topics of interest to Astrophotographers from beginner to expert. With that in mind, search for a topic to join the conversation, or start a new one if it is missing.

]]> https://www.santafestargazers.org/forums/topic/where-can-i-get-stargazing-news/#post-2165 Reply To: Where can I get Stargazing news? https://www.santafestargazers.org/forums/topic/where-can-i-get-stargazing-news/#post-2165 Mon, 03 Aug 2026 00:44:27 +0000 Fernando Torres One useful source is NASAS’s listing of notable events NASA Science.

]]> https://www.santafestargazers.org/forums/topic/where-can-i-get-stargazing-news/#post-2164 Where can I get Stargazing news? https://www.santafestargazers.org/forums/topic/where-can-i-get-stargazing-news/#post-2164 Mon, 03 Aug 2026 00:41:45 +0000 Fernando Torres Sharing links to useful resources.

]]> https://www.santafestargazers.org/forums/topic/about-this-forum/#post-2085 About this Forum https://www.santafestargazers.org/forums/topic/about-this-forum/#post-2085 Wed, 15 Jul 2026 01:19:59 +0000 Fernando Torres

 

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