Great video, 1 comment. Calibration math is (light - dark ) / (flat - bias ) Bias can be replaced by dark flats, but using both would subtract bias twice from the bottom of this ratio. DSS is not transparent, so not certain if this would happen. Just trying to add to the general knowlege. My regards. Edit: looking at a couple of your close zooms I see sensor pattern noise. Pretty confident the bias was subtracted twice.
@@AstroAddict Thanks, it's not a criticism, just that we only learn by sharing in the community. Your method of color balancing is unique and is brilliant, along with many of your insights. My thanks for your many contributions, I have learned much from your great work over time.
Hi Tim, I did some deeper research into DSS, they use sophisticated dark and dark flat optimization with a proper recombination. This is outlined with graphics near the bottom of this page: deepskystacker.free.fr/english/theory.htm It seems proper to include bias with dark flats unless there is something about your camera that causes the manufacturer to recommend against. My apologies, should have done this before commenting...
This is a great video! I started with astrophotography early this year and struggle with working with Photoshop. Your video is the best tutorial I've seen so far. I applied just the first 20 minutes of your video and my picture already looks better than ever. 😄
Happy to see this channel growing! I think I subscribed when you were under 1K :-)). One note: you mention at the beginning that you didn't drizzle "because most of the time PS can't handle the big files". There are 3 settings in PS that are worth changing for intense workloads like this: 1. change your cache levels to maximum (8), 2. change your cache tile size to maximum (1024K), 3. use a large SSD as a scratch disk. That should allow PS to handle just about any size file (I've had it gobble up as much as 1,1TB on the scratch disk and still churn out the file). It'll take a while, but it won't freeze/crash like it does if you don't have these settings to max and/or you run out of RAM+scratch disk.
I've been using Affinity photo 1.9 - does stacking, alignment, and gradient removal, and can edit in 32 bit linear space as well. One off payment of about £24 and, I believe, they're doing a 90 day trial right now. Edit: I tried stacking Tim's generously linked raw files with it, and it did a very good job, but I am still learning how to make the most of the stacked result. What I do like, is that i can use all the filters and adjustments in 32 bit.
Hi Dave, I am learning Affinity Photo, do you know of a good tutorial that covers layers, masking etc. and isn't 20 hours long! ? Thanks in advance for any help you can give.
@@tisDaveSmith James Ritson on youtube (works for Affinity) has tutorials on astro processing, also his youtube homepage has links to the Affinity youtube channel, where you'll find six tutorials on using Affinity 1.9 for astro (all about 20mins long), as well as many more general ones. I'm trying to wean myself off Photoshop, but haven't yet found a suitable replacement for Lightroom.
Hi, i really liked the part where you make the synthetic flats. I shot M31 2 weeks ago from B1 skies, 2.5hrs and the data is good. Unfortunately the flats got screwed and I have 2 dust bunnies each on both ends of M31. What do you recommend I do to remove them? TIA
I am getting good tracked data with over an hour of good stacked images but post processing in photoshop for me is a slow learning curve and my results are laughable in comparison to yours 😆 but I am determined to make it work one day. Thanks for the video and making it look so easy.. when it is not hehe
Hi Tim, I was wondering if your Omegon APO is the one with FCD-1. If so would you recommend it over a FPL-53 doublet? I've heard they are similar. Thanks and clear skies!
Awesome tutorial, very informative! as a beginner I always had trouble with that color cast removal from L Pro and other filter(s) using the Threshold very useful..THANKS enjoy your tutorials!! Clear skies from Bortle 8 skies Dallas Tx
Thank you very much for this amazing tutorial! I learnt a lot trying to replicate your steps on my photos. The "artificial flat" was particularly useful for me. I keep getting a strange red halo at the centre of my pictures, despite the use of flat frames. What do you think might cause it? I suspect it's because there are some lightposts near my observation site that might pollute the picture/sky. Thanks again
@@AstroAddict Thanks a lot for the quick reply! I am using a white paper + tablet (white screen) + Nina flat wizard. I am still using a dslr but I should get a cooled camera soon
If you look at this picture you may think: "How are we going to get something greater of this, it looks like a green jungle with barely anything in it". Dude, my picture after processing looks worse than your stacked picture without processing :P
Thanks, I will follow this closely now I have a chance. It's raining for a week so I have a chance to get into some previous photos and bring them to life properly. I will have to retroactively create some darks and flats though.
Awesome! So, which one do you think is better photoshop or Pixinsight I bought Photoshop and I am using the free trial of Pixinsight, I find Pixinsight easier than Photoshop. What do you think?. Thanks bro. God bless.
Great video, really helpful! I got far better results then with my previous way of working :). But I've got just one question, which I hope you can help me with. I also use this tutorial for processing e.g. nebula and star clusters, but those subjects do not have a white point for the threshold layer. In such cases I only have a coloured nebula (e.g. M27) and stars, which are also not white. Do you have any tips perhaps? Thank you in advance!
That's a tough one. Sadly, my knowledge on Photoshop is limited to those basic operations, i usually o that work in APP and PixInsight nowadays. You should probalby ask that question in some forums, like cloudynights and astrobin
great video! I tried to process your data (i would post link to the picture but my comment gets deleted) I also used Siril for DBE and stretching. The rest with Starnet and Photoshop. Looking again at your results i realize that i am a little to shy with the stretching of the outer regions :D Learned something new, thank you!
@@stef2499 a little more than 6,000 😬 but that was because I was only using a tripod and was limited to about 1 second. I just recently got the sky guided pro and now only takes 20 min or so to stack because more exposure time can be done in less frames
Trying to follow along is infuriating. The entire image is based off of the calibration you did in the beginning. You never explain how to select the calibration 1 and 2. I see crosshairs show up but you never say what you need to do to click it. Then you go on for the rest of the video expecting we did that 1 step you never explained.
I did the same when learning about this, and kept a notebook on my side. Keep going, and pause as much as you need to. That's the purpose of a video, rather than a livestream
Great video, 1 comment. Calibration math is (light - dark ) / (flat - bias ) Bias can be replaced by dark flats, but using both would subtract bias twice from the bottom of this ratio. DSS is not transparent, so not certain if this would happen. Just trying to add to the general knowlege. My regards.
Edit: looking at a couple of your close zooms I see sensor pattern noise. Pretty confident the bias was subtracted twice.
I'll look into that matter more closely, thanks!
@@AstroAddict Thanks, it's not a criticism, just that we only learn by sharing in the community. Your method of color balancing is unique and is brilliant, along with many of your insights. My thanks for your many contributions, I have learned much from your great work over time.
Hi Tim, I did some deeper research into DSS, they use sophisticated dark and dark flat optimization with a proper recombination. This is outlined with graphics near the bottom of this page:
deepskystacker.free.fr/english/theory.htm
It seems proper to include bias with dark flats unless there is something about your camera that causes the manufacturer to recommend against. My apologies, should have done this before commenting...
Dude this is by far the best walkthrough on andromeda out here, I followed along and I can't believe the end result I got truly insane.
Wow, thanks!
Thank you Tim. I understood about 50% of the video. I now know how much I don't know.
This is a great video! I started with astrophotography early this year and struggle with working with Photoshop. Your video is the best tutorial I've seen so far. I applied just the first 20 minutes of your video and my picture already looks better than ever. 😄
Awesome! Thank you!
Thanks for linking everything as well as the Astronomy Tools for Photoshop in the description, I forgot to add the tool myself earlier.
Glad I could help!
Happy to see this channel growing! I think I subscribed when you were under 1K :-)).
One note: you mention at the beginning that you didn't drizzle "because most of the time PS can't handle the big files". There are 3 settings in PS that are worth changing for intense workloads like this: 1. change your cache levels to maximum (8), 2. change your cache tile size to maximum (1024K), 3. use a large SSD as a scratch disk. That should allow PS to handle just about any size file (I've had it gobble up as much as 1,1TB on the scratch disk and still churn out the file). It'll take a while, but it won't freeze/crash like it does if you don't have these settings to max and/or you run out of RAM+scratch disk.
Thanks!
Impressive how much work there is in post processing. Thank you for this tutorial.
I've been using Affinity photo 1.9 - does stacking, alignment, and gradient removal, and can edit in 32 bit linear space as well. One off payment of about £24 and, I believe, they're doing a 90 day trial right now. Edit: I tried stacking Tim's generously linked raw files with it, and it did a very good job, but I am still learning how to make the most of the stacked result. What I do like, is that i can use all the filters and adjustments in 32 bit.
Hi Dave, I am learning Affinity Photo, do you know of a good tutorial that covers layers, masking etc. and isn't 20 hours long! ? Thanks in advance for any help you can give.
@@tisDaveSmith James Ritson on youtube (works for Affinity) has tutorials on astro processing, also his youtube homepage has links to the Affinity youtube channel, where you'll find six tutorials on using Affinity 1.9 for astro (all about 20mins long), as well as many more general ones.
I'm trying to wean myself off Photoshop, but haven't yet found a suitable replacement for Lightroom.
@@dcarey26 Many thanks Dave! Will check all that out.
Thank you so much for this tutorial! I learned techniques that really helped my processing!
I loved this video, thank you so much!
Pro tip: use the starless picture to remove the gradient, it works much, much better!
I'm working on that method👍
Get in there son. I took my first lot of data last night but been struggling to find some videos that can walk me through some of the stuff. Cheers.
Hi, i really liked the part where you make the synthetic flats. I shot M31 2 weeks ago from B1 skies, 2.5hrs and the data is good. Unfortunately the flats got screwed and I have 2 dust bunnies each on both ends of M31. What do you recommend I do to remove them? TIA
That's rough. Better consult a Photoshop professional
am glad that i come across this channel and this video specially
I am getting good tracked data with over an hour of good stacked images but post processing in photoshop for me is a slow learning curve and my results are laughable in comparison to yours 😆 but I am determined to make it work one day.
Thanks for the video and making it look so easy.. when it is not hehe
Hi Tim, I was wondering if your Omegon APO is the one with FCD-1. If so would you recommend it over a FPL-53 doublet? I've heard they are similar. Thanks and clear skies!
Awesome tutorial, very informative! as a beginner I always had trouble with that color cast removal from L Pro and other filter(s) using the Threshold very useful..THANKS enjoy your tutorials!! Clear skies from Bortle 8 skies Dallas Tx
yayy nice video. thanks tim
Glad you enjoyed it
Thank you very much for this amazing tutorial! I learnt a lot trying to replicate your steps on my photos. The "artificial flat" was particularly useful for me. I keep getting a strange red halo at the centre of my pictures, despite the use of flat frames. What do you think might cause it? I suspect it's because there are some lightposts near my observation site that might pollute the picture/sky. Thanks again
My first guess would simply be the quality of your flat frames. What method are you using? Second: If you have a cooled camera, it could be dew
@@AstroAddict Thanks a lot for the quick reply! I am using a white paper + tablet (white screen) + Nina flat wizard. I am still using a dslr but I should get a cooled camera soon
Very good... I will get there one day,,, Not Andromeda but to Photoshop.
31:24 it does work, you just need to apply it. It doesn't show it in the preview for some reason.
Excellent video. Learned some great new techniques. Thank you.
Glad it was helpful!
If you look at this picture you may think: "How are we going to get something greater of this,
it looks like a green jungle with barely anything in it".
Dude, my picture after processing looks worse than your stacked picture without processing :P
Thanks, I will follow this closely now I have a chance. It's raining for a week so I have a chance to get into some previous photos and bring them to life properly. I will have to retroactively create some darks and flats though.
Good luck!
Awesome! So, which one do you think is better photoshop or Pixinsight I bought Photoshop and I am using the free trial of Pixinsight, I find Pixinsight easier than Photoshop. What do you think?. Thanks bro. God bless.
PixInsight is way better. It's dedicated for astrophotography, and you can do many more things that are impossible in photoshop
@@AstroAddict thank you Tim! Keep Up The Awsome Work.
Amazing image, your Tuts are so helpful thanks!
Los Angeles
Glad you like them!
Great video, really helpful! I got far better results then with my previous way of working :). But I've got just one question, which I hope you can help me with. I also use this tutorial for processing e.g. nebula and star clusters, but those subjects do not have a white point for the threshold layer. In such cases I only have a coloured nebula (e.g. M27) and stars, which are also not white. Do you have any tips perhaps? Thank you in advance!
That's a tough one. Sadly, my knowledge on Photoshop is limited to those basic operations, i usually o that work in APP and PixInsight nowadays. You should probalby ask that question in some forums, like cloudynights and astrobin
When did they give you a window Tim?
Great Video Tim 👍
Glad you think so!
Very cool video! thanks for sharing :D
great video!
I tried to process your data (i would post link to the picture but my comment gets deleted)
I also used Siril for DBE and stretching. The rest with Starnet and Photoshop.
Looking again at your results i realize that i am a little to shy with the stretching of the outer regions :D
Learned something new, thank you!
You can post the image on social media and tag me!
Great video!
Wow thats exactly that what i looked for. Thanks for The Vidio Tim
What are good alternatives for Photoshop if you dont wanna spent Money for editing
@@lichasvocke8642 I haven't used it but I heard light room for android/ios is free. But you have to edit on your phone.
@@jasonnikolic I think editing on PC would be better, is GIMP an good option for DeepSkyEditing?
I'm definitely trying this on my data :)
Did it work? :D
@@AstroAddict Haven't tried it yet. :p
What camera has been taken this shot with? Is it stock or modified?
A dedicated astronomy camera. So yes, modified
Thanks for a great video!
How do i set up the info box to see these values for adjustment ?
Window -> Info
bro your source file link is dead please redo the links please
do somethinggggg
I refreshed the link, please tell me if it works!
@@AstroAddict good lord thanks dude
My APT is storing the files in some type of "Prism" format??? Has anyone seen this? how do you set the file type in advance?
You can go to the settings, and choose to convert RAW DSLR files into FITS. That could help
Thank you!
You're welcome!
ahh sehr gut
Wow stacking took you 4 minutes, one time it took me 6 days but it wasn’t because of the start detection
How many files did you stack?
@@stef2499 a little more than 6,000 😬 but that was because I was only using a tripod and was limited to about 1 second. I just recently got the sky guided pro and now only takes 20 min or so to stack because more exposure time can be done in less frames
@@roundcube3058 nice, i got the same guider, works brilliant. Maybe DSS really struggled with those unguided shots
Trying to follow along is infuriating. The entire image is based off of the calibration you did in the beginning. You never explain how to select the calibration 1 and 2. I see crosshairs show up but you never say what you need to do to click it. Then you go on for the rest of the video expecting we did that 1 step you never explained.
It's at 7:38
You do need to slow down... I have stopped this video 20 times and still do not understand portions of this.
I did the same when learning about this, and kept a notebook on my side. Keep going, and pause as much as you need to. That's the purpose of a video, rather than a livestream
could not understand you at all what are you german?
Yes
Great video!
Glad you enjoyed it