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I'm stacking multiple nights with a luminance filter for two nights and the Optolong Quad filter for the other two nights. The dilemma I'm having is when choosing filters and multi-session, I can only choose one filter from the choices for a set of lights. What should I pick for the set using the quad filter? Or, should I even choose the filters option and just stack them as session 1 through 4?  |
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| Stack 'em up and be done with it. No faffing around with filter labels. |
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| You should treat it as if you had no filter since that's the intent of this filter. |
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| Thanks! I wasn't sure if APP treated them differently when stacking. And thanks Andrea. Keep me from faffing up. LOL |
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 In raw you'll need to select Ha-OIII color for example. |
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hi go to 0) RAW/FITS and enable the force bayer /X-trans CFA pattern select your bayer pattern sample zwo 294mc pro used RGGB also check the algorithm choice option and used the best for you camera |
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| Not the same filter, but I often use an L'Extreme. I just let APP choose based on file header. I assume it defaults to RGB. Regardless, end results are good. |
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| Since the sensor only registers RGB there is a limit to what can be extracted anyhow. Ha is from red and Oiii is from blue + green and S is from ?... |
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Not the same filter, but I often use an L'Extreme. I just let APP choose based on file header. I assume it defaults to RGB. Regardless, end results are good. Same here. I also use the eXtreme and have done the same with it. Going to give Brian's and Henk_Jan's suggestion a go. Makes sense. |
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DavesView:Not the same filter, but I often use an L'Extreme. I just let APP choose based on file header. I assume it defaults to RGB. Regardless, end results are good. Yes, interesting technique. I would like to process an image each way and see the difference. |
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The APP Forum already has information on this topic. Take a look at this thread: https://www.astropixelprocessor.com/community/main-forum/quad-band-filter-prosessing-and-more/paged/2/#post-22868 |
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The APP Forum already has information on this topic. Take a look at this thread: Ahhh! Very good read! |
