WBPP & SHO Setup For Duo Narrowband Filters

[@robertmyers8322]

Excellent and clear description and process

[@charlesdicosimo5347]

I followed your workflow accurately. Ran data from Cygnus Wall using D1 & D2 filters, four hours each session using plan mode in ASI Air + for accurate alignment of images from both sessions. The combined OIII image was distorted and poorly aligned. I used dynamic alignment resulting in a well aligned image. When I attempted to combine Ha,SII and OIII in LRGB Combination, I got an error message stating “Incompatible source image geometry: Ha. I am stumped. Any suggestions as to why this occurred?

[@jimcollins1922]

I had been using key words with WBPP for processing the different filters and was not really aware of the custom option which is very nice. If you have not investigate the DBXtract script you should as it simplifies processing after WBPP as it does away with all the need for pixel math. It takes the two output images from WBPP and produces 4 image, the HA, SA, OIII, and a combined SHO. Quick and easy. I usually then just take the SHO image and run the narrowbandnormalization process and proceed from there. I follow basically a very similar process that you use for stars. Very good video.

[@nickbabaniaris6347]

Great vids for someone like me who is learning PixInsight, so thanks! I wish though that you would show how you process the colors. Believe me you will not bore us with the details as you say in your vids. I would love a vid on this please..thanks!!

[@jesusbilbao]

Great tutorial. Excellent presentation. I’ve been thinking of going to mono but hesitating due to the cost and extra work. You showed what I thought was possible. One question. Do we need to refocus after a filter change?. We would then need an EAF, yes?. Also, If I were to be in a bottle 1-2 area, would the bandwidth of a narrowband filter make much difference?. I’m trying to understand the benefit vs cost of one filter vs another. Thank you.

[@OuttenAstrophotography]

always refocus after a filter change. The change isnt much depending on the filters but it an make or break your image for that filter. So it just eliminates that hassle

[@charlesdicosimo5347]

Nicely done. Why didn’t you run SPCC to color calibrate each of the original images?

[@OuttenAstrophotography]

There isn't a point to color calibration when you extracting the individual R G B channels to get those wave narrowband lengths. I only go back to do so to not have those awful magenta stars when you combine for SHO

[@whatmattersmost6725]

Thanks, and first! Always good info..

[@MrGeert1972]

Good morning, I used your video to give it a go myself 😊 but in my D2 data I have almost no signal in the R channel but in my R channel off my L-enhance I have great data. Need to say still using my DSLR. Will I need much more D2 data for the R to be showing? Cause B and G channels are great.

[@OuttenAstrophotography]

To keep in mind that Sii is a very weak signal and some objects like super nova remnants will have little to no Sii what so ever. To do a test try it on the cygnus wall in ngc 7000. That is a very rich area of Sii to make sure you have a good filter

[@KaiHui-xm2mp]

Great video! Do you have to do any star alignment before processing or does WBPP take care of that for the two sets of data.

[@OuttenAstrophotography]

If you stack both at the same time you will not need to star align. It will do it for you! :D

[@KaiHui-xm2mp]

@@OuttenAstrophotography Thank you for confirming. If I have dark flats instead of bias frames as my camera has ampglow, do I need them per filter? Thanks in advance!

[@prashantmahabeer6324]

Apologies for my ignorance, but i want to know. The two file sets you uploaded onto WBPP was from a OSC camera just using a narrow band filter such as the ZWO Duo Band? This is new to me so im trying to figure how you got two sets of data from a OSC 😅

[@DrBrewhaha]

I shoot with a ZWO2600MC and rokinon 135. I'm thinking of adding a filter wheel to the mix to accommodate the duo filters. How do you connect your 2600, your filter wheel, and your rokinon to get the correct back focus? (plus a filter)

[@OuttenAstrophotography]

So here is what you need. This is the EFW adapter for a 2 inch filter wheel. bit.ly/3WvBF7A And I just use a 5 slot filter wheel for my l-quad, L-Ultimate, askar d2, askar c1 & 2 bit.ly/4asq6TS As far as the back focus, the zwo eaf lens adapter threads right into the filter wheel. You will take the tilt plate off the 2600MC and bolt it directly into EFW and you got the right backfocus! If you need a photo reference on how I have mine setup I can glady get that for you. Hope this helps!

[@DrBrewhaha]

@@OuttenAstrophotographythat makes sense. So I don’t just screw the 2600 to the EFW? Here’s a second question: would you be willing to share the two stacked images so I could start practicing in Pixinsight?

[@OuttenAstrophotography]

@@DrBrewhaha Sure thing here is the data and i also included photos of the 2600 and rokinon setup for yah drive.google.com/drive/folders/1tP7sF3KT0woLW3726jnWltugg2yIXXq_?usp=drive_link

[@DrBrewhaha]

@@OuttenAstrophotographythanks tons

[@MrGeert1972]

Loved the video, just some small comments and questions. WBPP was awesome to see how to run 2 different filters at once. For extracting your SII OIII Ha couldn’t you use the script DBxtract? Or isn’t the quality as good? And for DBE there is a script from SETI Astro that has a ADBE that works great. I also have the Bill Blanched stretch things but I have also one for rescreen the stars so I don’t need PixelMath

[@OuttenAstrophotography]

I havent dived into the seti astro stuff as of yet. Should dabble into that to see how it performs