Antlia Duo Narrowband Processing - New SHO Combination Method! 

That’s the goal glad it came off that way! Thank you 💪🏼

Thank you glad it helped! I’ve seen it I’m not a big fan of linear fit in a lot of cases. It’s just another way to normalize the data and equalize it out and I can do that in other ways that aren’t potentially destructive to the data. If you’re fitting the HA channel to the Oiii channel, for example, it I’ve seen it really hinder the good data I had to try to level them out. There are a couple other techniques you can do balance it out without just diminishing the stronger channel to fit the weaker one. I like to take the approach of balancing the two channels together, maybe bringing one up a little bit and the other down slightly rather than a one way approach I do use it occasionally but it’s never a one size fits all approach and when folks get stuck in someone else’s workflow it might not be the best for their situation. I really respect James knowledge and scientific approach he’s very intelligent and astute, but his editing style doesn’t really match what I like. His images look great but it’s a little bit different look than I’m going for. These are just guidelines I always recommend experimenting a little on your own. I’m just showing you how to get some decent results. Especially with these filter sets that are fairly new. It’s new territory for everybody.

Thank you! I figured I have enough of the before and after processing to not need to make every video over 15 minutes long…

Yeah I really like working with the data on these filter sets! I put the link in the description if you don’t want the Antlia one, then check out the Askar color magic it’s in 6 or 3nm if that matches up better

@@darkrangersinc definitely, i looked at the Askar color magic before buying the Antlia. Definitely love that filter.

Good luck! Hope you get great results too

In time for a contest entry 😂👀👀

😄😄@@darkrangersinc

We’ll keep em coming!

Thank you for the kind words I just released the guide! In post production, you can choose the box to have it stack them in separate channels or have them recombined into an RGB image as we normally do. I believe if you uncheck that it will stack it into three separate grayscale files for red green and blue. I’ve never done it though, because I always want a color image, knowing I can just split the channels with the push of a button. I don’t think they’re really is a benefit, though, because you can simply split the channels after you do some initial processing, which will help you save time. Otherwise you’re going to have to do the initial steps to all six layers. Which you still could if you split them you can do BXT, NXT, DBE etc to all 6 layers (RGB x 2 filters) it’s just time consuming and I don’t think there will be a huge benefit. When working in mono since they get stacked individually, I do usually process those initial steps to each filter individually but that’s more so because when you’re talking about different filters, it’s three separate images versus three components of the same image. So there’s more of a benefit to processing each image individually because there’s usually a pretty big difference between HA and 03 for example.

@@darkrangersincOkay, thanks Ryan. I purchased the guide a little earlier. Anxious to have a look at it! Yes, I understand what you're saying completely. The last imaging session, I tried a close-up (1400mm) of the Bubble Nebula using the Ha/OIII and SII/Hb filters and had WBPP generate both the composite RGB images as well as the separate RGB channels. I haven't processed it yet, but I'm thinking it will be MUCH easier to just process the two RGB images and follow the workflow you outlined here. Thanks!

@@gregerianne3880 that has to look awesome at 1400 mm. I’ve only shot it at 540 and it was very “zoomed out”. I’m waiting for SharpStar to send me their SCA 260 which is 1300 mm so that’ll be fun to test

Super high speed systems are always going to have issues. If you get a system like that you just realize that and know it’s part of the deal. you’re going to have issues with tilt getting good stars all the way to the corner keeping focused super tight and filters doing weird things. That’s why I am not a big fan of anything much faster than F4. Antlia to me is the best filter for the money right now of all the ones I’ve tried. If you wanted to be safer with halo, you could get the quadband. But I think you will get good results with the high-speed filters. You might get some small small halos on certain targets, but nothing too bad

Don’t think there’s a book you just learn what works best overtime. Sometimes there’s more than one right answer for example with monochrome some targets look great in LRGB and SHO. It’s just knowing what look you want. Same with one shot color. You can go no filter and get a broadband look if you are going to a dark sky site. Or you can use a narrowband filter if you’re in light pollution. I would always error on less filtration if you have the skies for it. But if you are under light pollution, you’re pretty much going to be limited to using a filter most of the time. If you have a target in mind, I would be happy to tell you what I would do with it.

That’s actually not a bad idea to create. It would just take a ton of time and I don’t know if it would be worth all of the efforts in the long run but it’s definitely something I could make

You want to separate out the channels from each filter first so if you’re looking to mimic the SHO pallet. Otherwise when you go to separate the RGB channels you red channel will he a mix of S2 & Ha and the same for other channels. It’s important to separate them out first to replicate the Hubble pallet. Hope that makes sense

Makes perfect sense, thank you!@@rvoykin

Are you talking about channel combination?

@@darkrangersincno, when you combined your 2 sets of G and B images you used pixel math and did + (G1+G2+B1+B2)/4 correct? I use the image integration module in pixinsight and would essentially stack them as if they were lights in a dataset. I’m curious as to how these two methods compare

Linear for that type of stuff always