Process & Stack Your Dwarf II Images with Siril: A Comprehensive Tutorial

[@DeepSpaceAstro]

👽👽Dwarf Lab has approved the giveaway! I will be randomly choosing a winner LIVE on Dec. 11, 2023 at 3p Eastern, which is also the 1 year anniversary of the channel! Here's the link to the Live Stream: kzbin.infoCG9t6hk4L1U?feature=share Good luck to everyone!! 🎁🎁

[@leonardorser3455]

Great tutorial. I like the way you explain why you’re doing everything. No bs, no distracting music. Love it

[@DeepSpaceAstro]

I appreciate that! Thanks!

[@UDerf13]

I’m completely new to Astrophotography and this tutorial was absolutely perfect!! I was trying other apps and getting so frustrated. You kept this simple and I can’t wait to check out more of your content! Thanks so much!!

[@DeepSpaceAstro]

Happy to hear it was helpful! Thanks so much for your support! It's much appreciated!

[@michaelknapp5456]

Thank you for this. This is exactly what I needed. I've struggled to use Siril and this will simplify and speed up the processing. Another great video. Lots of valuable content in a short amount of time. Bravo, sir!

[@DeepSpaceAstro]

Glad it was helpful! Thanks!

[@noscamiam]

Holy cow, what a great tutorial! I just got the Dwarf 2 and this greatly flattens the learning curve on post-processing - THANK YOU!

[@DeepSpaceAstro]

Great to hear it was helpful! Thanks!

[@alexnader2489]

for the first time I could process a picture from my Dwarf. That was sooooo helpful! Thank you!

[@DeepSpaceAstro]

Glad I could help! Thanks!

[@nekite1]

I have to commend you on your informative videos. I particularly liked your tip about using a Celestron Omni barlow to shield against stray light and and turning on CPU performance when imaging in cold weather. It is this channel as well as Cuiv the lazy geek that persuaded me to start using Siril, and the both of you have been extremely helpful in getting to grips with the software.

[@DeepSpaceAstro]

Awesome, thank you!

[@theskidmorelectures]

Fabulous video, superbly clear, and I could never have figured this out myself. Thank you very much.

[@DeepSpaceAstro]

Glad it helped! Thanks!

[@judd_s5643]

I’m very impressed with the quality of this video.

[@DeepSpaceAstro]

Thanks!

[@egrava2297]

Excellent tutorial. One additional thing that I do before running the scripts is quickly looking at the individual fits files with some type of viewer program. I can then reject any frames that were photobombed by airplanes or satelites, or blurred by wind or shaking, or clouds,etc. I also found that because the Dwarf uses 2 x 2 binning,the effective focal length for the plate solving function is 100 / 2 or 50 mm. If script for processing with drizzle is used,then 100 mm is the correct value.

[@DeepSpaceAstro]

Great tip, but you wouldn't need to remove the ones with planes or satellite trails. They'll be removed automatically.

[@RoInsanee]

any recommendations for a quick-look program/tool for fits? (with autoexpand on - so you can actually see anything)

[@DeepSpaceAstro]

@@RoInsanee You can open them with Siril individually, create a sequence to blink through them. kzbin.info/www/bejne/r5q8l3eLiJmKeKs or use ASIStudio which has a fits viewer.

[@TwoHandUke]

Very informative as always. I now feel a bit more comfortable using Siril.

[@DeepSpaceAstro]

Great to hear! Thanks!

[@scotianskies]

An excellent how to Dwarf 2 video for beginners Rich!

[@DeepSpaceAstro]

Thank you!

[@wilduc7302]

Thanks, saved this video for learning more steps in Siril.

[@DeepSpaceAstro]

You're welcome! Thanks!

[@alh717]

Thank you for another informative video. You say this is for a beginner but I found it a very good tutorial, even for experienced Siril users. Thank you again!

[@DeepSpaceAstro]

Glad it was helpful! Thanks!

[@colinbacon1738]

excellent presentation , to the point , explained very well, as someone totally new to all this your video made sense. great channel

[@DeepSpaceAstro]

Thanks so much!

[@JoepsAstronomy]

Great beginner friendly tutorial! Thank you.

[@DeepSpaceAstro]

Glad you enjoyed it! Thanks!

[@JohnKindle]

Outstanding tutorial. Really well done. Thanks for doing this.

[@DeepSpaceAstro]

Glad it was helpful! Thanks!

[@psmurphy321]

Excellent video, been trying to find a good one on Siril and this is the one, thanks you very much :)

[@DeepSpaceAstro]

Glad I could help! Thanks!

[@woodswalker88]

Thanks, maybe I'll be ready in a few years....

[@TroyRubert]

I just found your channel, and this was a fantastic video. I would love to see more dwarf videos in expert/advanced mode.

[@DeepSpaceAstro]

Thanks!

[@wildhorsesrvadventures]

I open mine nad instead of green I got magenta? is that okay? 🙂

[@DeepSpaceAstro]

Yeah it should be fine.

[@dannybouchard4140]

I have learned so much from this one video on Post. Thanks very much, you have a new subscriber. Cheers.

[@DeepSpaceAstro]

Happy to hear it was helpful! Thanks and welcome!

[@CollideNox]

Quick Question…. Is there any way to say take a stacked image and add it onto more data from a later session?

[@DeepSpaceAstro]

You'd be better off restacking all of the data together.

[@Dwarf-Encounters]

Rich, thanks for sharing your work with Siril and PS. You are great in showing what can be done with this scope! How does the Dwarf Lab giveaway work as I have entered into your giveaway 3k views requirement? What do I need to do in getting me signed up the Dwarf Lab giveaway? You said there would be 2 giveaways. Yours and Dwarf Lab. Is this correct? Thanks! Ron & Maryellen 👥

[@johnmheaton]

Ron, look in the description of this video for the link to the second giveaway. It's in the third paragraph, just after the words "Visit this giveaway link, hosted by Dwarf Lab, to enter up to 4 times!" Good luck!

[@DeepSpaceAstro]

If you commented on the first video then you're entered. Use the link in the description of this video to enter the second.

[@DeepSpaceAstro]

Thanks for helping out John!

[@wardclement2729]

Hello very happy with this tutorial. I shoot andromeda on a night and did a battery change. Ofcourse the two sessions have same exposure time, same gain. Can i add the two sessions together just by dropping/selecting them both (in their own map and with the rules like you explained?

[@DeepSpaceAstro]

Yep. Shouldn't be a problem.

[@wardclement2729]

@@DeepSpaceAstro i can`t find the video that explains how to take more then 3 darks with dwarf 2..

[@DeepSpaceAstro]

@@wardclement2729 It's this one. Around the 3m mark

[@Flaps72]

Very informative for us beginners with the Dwarf 2. 😄

[@DeepSpaceAstro]

Glad you think so! Thanks!

[@clarencemumphrey]

Rich, once again a great video. It was important to know the steps needed to get the info from the Dwarf II to Siril. This vid was worth the wait. (Wow! 2 giveaways!!)

[@DeepSpaceAstro]

Glad it was helpful! Thanks!

[@depotwest]

What a great explainer. Keep up the great work!

[@DeepSpaceAstro]

Glad it was helpful! Thanks!

[@Magoo_Who]

Thanks for the tutorial, it helps me a lot

[@DeepSpaceAstro]

Glad to hear that! Thanks!

[@UDerf13]

Hey Rich. I caved and ordered me a Seestar S50 and wanted to know if this same workflow would work with its raw files? Or do I need a new script for processing? Any advice would be appreciated. THX

[@DeepSpaceAstro]

If you can take darks with the S50, then yes it should be the same. If you can't, leaving you with only the light frames, then this script will allow you to stack and process. kzbin.info/www/bejne/e6ewi6KuZ8mfkKM

[@BommeltjeNL]

Thanks for the video. Very informative. I edit my Dwarf II images with online tools like Fitsscrubber and finish them with LIghtroom Mobile, but indeed, the stars are too bright and sometimes so are the nebula's or part of them. I saved this video in case I buy a PC (which may be sooner than later) 👍

[@DeepSpaceAstro]

Thank you!

[@denisbombardier8820]

Hi! Excellent video! Where can I get the Dwarf processing you are using in the example?

[@DeepSpaceAstro]

Thanks! Sorry, what are you asking for? My data? If so, that's not available to download. The video is to show you how to stack & process your own data from the Dwarf.

[@denisbombardier8820]

@@DeepSpaceAstro At 18:11, Image processing, Script ... You are using the Dwarf processing script. Where can I download this script? :-)

[@DeepSpaceAstro]

I go through that here: kzbin.info/www/bejne/aJybqaqHlrJ-o7M

[@denisbombardier8820]

@@DeepSpaceAstro Ho Thank's! I missed that one! I'll view it! 😎

[@woodswalker88]

So what is the point of the "astro dark" button?

[@DeepSpaceAstro]

To remove hot pixels during live stacking

[@woodswalker88]

@@DeepSpaceAstro how is that different from Regular dark?

[@DeepSpaceAstro]

No different, but the Astro Dark only takes 3 images. As I said in my video, you can use those 3 if you want, but it's better to shoot more yourself and use those.

[@WRX2001]

Great video when I do my photometric colour calibtation it can't plate solve the stars.

[@DeepSpaceAstro]

Assuming you have set your focal length and pixel size set correctly. Imagine the image split into 4 quadrants, and then draw a selection the size of 1 of those quadrants roughly in the top-left corner. Try the color calibration again. If it fails, move then selection to the top-right and try, then bottom-left, then bottom-right. Let me know.

[@WRX2001]

@@DeepSpaceAstro thank you for the reply, I performed what you suggested and guess what it worked so thanks.

[@DeepSpaceAstro]

Awesome! Thanks for reporting back!

[@noscamiam]

Thanks again for the great tutorial!

[@DeepSpaceAstro]

Hey , thanks so much for your support! It's much appreciated!

[@cuda7189]

Hi @Deep Space Astro, Thanks for this excellent tutorial really great. On the graph when you stretch an image, there are vertical lines all along the curve. Do you know what that lines mean ? Thanks

[@DeepSpaceAstro]

Not sure what you're referring to, but it may be noise in the image.

[@cuda7189]

​@DeepSpaceAstro sorry if think it would been better if I posted my question on your video about Generalised Hyperbolic Stretch. At about 5min37 sec on the video when you zoom at 100 at begin to stretch on the curves you've vertical lines all along the curves. Do you know what it's please ?

[@DeepSpaceAstro]

I'm not positive, but I think at that zoom level they're representing the bit depth of the image.

[@cuda7189]

​@@DeepSpaceAstroOk, thanks a lot for your answer 🙂

[@pedalajones]

great video with simple explanations.

[@DeepSpaceAstro]

Glad you liked it!

[@patrickvandervalk9622]

Yesterday I used your beginners guide where you used a different nebula (red one, forgot the name) trying to get the best result out of 90 pictures of 1 minute exposure of M42. Your easy tutorial works perfectly, I had just one problem as my 90 frames were quite overexposed, and that is bringing the purple color back in. In my single frames there is a lot of this purple, but after stacking I could not retrieve it. Any thoughts on what might be the cause?

[@DeepSpaceAstro]

It's hard to say without seeing the data. You could try stretching with GHS instead of Asinh & Histogram Transformation to see if that gives you the results you're looking for. kzbin.info/www/bejne/gnS4m4R5d7WBmbs

[@patrickvandervalk9622]

@@DeepSpaceAstro Thanks, I will definitely try it! Great that you engage with the people that are subscribed this way. Keep up the good work, your tutorial has brought me back in to AP after I tried 4 years ago with Pix Insight, DSS and other programs that are simply too complicated for a beginner.

[@DeepSpaceAstro]

You're very welcome! Great to hear the videos have been helpful! Thanks!

[@RoInsanee]

@@patrickvandervalk9622 enjoy it while you can, because soon as those subscriber and comments go up, he will have a hard time responding.

[@kannsmusical]

Thank you for the great tutorial. I may need to try it with new picture and taking new DARKS as you suggested. For some reason, the script execution failed for me stating "08:00:58: Reading FITS: file light_00127.fit, 1 layer(s), 3840x2160 pixels, 32 bits 08:00:58: Images must have same dimensions.". Any insights for this failure? Why would Dwarf2 take a picture with different dimensions

[@kannsmusical]

I figured out the issue and fixed it

[@DeepSpaceAstro]

Make sure there are nothing but the fit files in the directories. Anything like .jpg, etc. will cause that error.

[@kannsmusical]

Thank you so much! Your tutorial was so helpful. I would have never known this approach of processing a Dwarf 2 image. When I was processing an image, it started showing up a lot more than what was done by Dwarf 2 internally. Once again, THANK YOU!

[@DeepSpaceAstro]

Glad to hear it was helpful! Thanks!

[@vladimirvladimiroff6687]

Thank You for video! I interesting - is it possible to stack Dwarf II video of Moon or Sun?

[@DeepSpaceAstro]

They're working on that for the next version!

[@vladimirvladimiroff6687]

@@DeepSpaceAstro I mean do it with Siril

[@DeepSpaceAstro]

Possibly. Here's a video I put out about stacking planetary, that might be able to be used for solar/lunar. kzbin.info/www/bejne/haqknoKBeLl6gsU

[@BasWilberink]

Thanks, great video!

[@DeepSpaceAstro]

Glad you liked it!

[@AA5MC]

really good video ! This help so much!!

[@DeepSpaceAstro]

Glad it helped! Thanks!

[@MaartenJacobs]

Great overview

[@DeepSpaceAstro]

Thanks!

[@SpaceRocksandStardust]

You can change your debayer setting under preferences to gbrg

[@DeepSpaceAstro]

You're right you can, but there's no need to unless that data doesn't exist in the FITS header.

[@SpaceRocksandStardust]

@@DeepSpaceAstro ah, right! If you forget to change it back when you do regular camera processing you end up with a mono image as well…😂 Spent an entire afternoon scratching my head trying to figure out where my colour went…

[@MrsBMusic]

I managed to edit one set of files with this, but when I tried another set I got an error that the files were not the same size or dimensions. They are just a regular sequence of 300 fits files. Why?

[@DeepSpaceAstro]

Make sure there are nothings but .fits files in your Lights folder. No .png, .json, etc.

[@MrsBMusic]

@@DeepSpaceAstro only .fits files in there, straight from sd card

[@DeepSpaceAstro]

Are you using darks as well? Same thing, make sure only .fits files are in the Darks folder.

[@MrsBMusic]

Yep. Only fits there too. Bizarre

[@AA5MC]

Thanks!

[@DeepSpaceAstro]

Thanks so much for your support!

[@keithj8437]

Is there anyway someone can do one of these with a Mac. I am having trouble following along with a Mac. I’m probably not the smartest at this.

[@DeepSpaceAstro]

Sorry, I don't have a Mac, but everything should be the same. The only difference would be the Mac folder structure.

[@fmsilva11]

not work with my files. always error

[@DeepSpaceAstro]

What's the error?

[@woodswalker88]

Sorry...mine won't locate the 'without flats' no matter what I name it. Here's the message I get: "Astrophoto\OSC_Preprocessing_WithoutFlat.ssf: file type not supported."

[@DeepSpaceAstro]

What are you doing when you get that message?

[@woodswalker88]

@@DeepSpaceAstro trying to run the script . It fails every time.

[@DeepSpaceAstro]

Did you maybe open the script and save it? That "could" be why. Delete it and download it again, don't rename it at first. Try it with it's original file name and see if it works.

[@woodswalker88]

@@DeepSpaceAstrotried renaming it to the original. Nope.

[@DeepSpaceAstro]

Did you download it again from the repository?

[@bobjor3]

Hey, December 11 is my birthday! :) 62... yikes...

[@DeepSpaceAstro]

Could be a sign!

[@bobjor3]

@@DeepSpaceAstro 🤞

[@hmuphilly9129]

Why did cuiv the lazy geek say the focal length was 50.5 then?

[@DeepSpaceAstro]

@@hmuphilly9129 🤷

[@camus83489]

amazingggggggggggggggggg

[@DeepSpaceAstro]

Thanks!