Processing The Rosette Nebula in GIMP 2.10. Beginner level Processing Tutorial

[@Ronbo765]

Awesome! Thank you!

[@egar4767]

I’m a retired professor of 30 years. I must say that was nicely done. It ‘s going on my saved list.

[@AstroPilotchannel]

Wow thank you very much! I really appreciate it!

[@jmoreno6094]

​@@AstroPilotchannel do you apply the same process to galaxies ?

[@katrinaedmunds7566]

Great video, 3 pages of notes, saved and subscribed…. Would be lost without people like you with regards to asto processing. Thanks

[@AstroPilotchannel]

Thank you!! Glad I could help!

[@astroadventures3559]

I'm so glad I actually watch this video because I've been wondering how to just do sharpen on gimp for a long time. Sometimes I'm happy with the image but I just want to sharpen it slightly for better detail and I could never find a just sharpen slider.

[@waterboymikemjhi]

well done, Gimp is a very complicated program and it is nice to have someone do a great job of focusing in on the important parts

[@hismasterstelescope]

The best tutorial I have found on GIMP. Thanks a lot.

[@Multimen76]

This is nice tutorial not to mouch bla bla bla not to fast , helpfull and corect for astro beginers.

[@AstroPilotchannel]

Thank you!

[@celinefarrugia]

I am new to Astrophotography and your guidance with GIMP was very helpful...Thank you!

[@woody5109]

Thanks, I know nothing about laptops, my friend owns a software company, he donated me a real hot rod laptop, 16ram and high end graphics card?? Stacks 100 photos is under minute so all is good. Thanks and keep up the good work.

[@stephenhaythornthwaite7762]

cracking tutorial pal, helped me tremendously. Cheers

[@astronomynotebook]

Thank you ....your further tutorials in Gimp would be very appreciated ❤️😊✨🔭

[@AstroPilotchannel]

Thank you so much, I will definitely!

[@grortyphx]

What a great help this is! I've been struggling with Gimp for months! Thank you!

[@bazbaz2054]

I'm new to astrophotography new to gimp, this was just what I was looking for. Thanks

[@AstroPilotchannel]

Thanks! Glad I could help!

[@ronaldleedham4719]

Very nice presentation. Thanks so much for the G-MIC plugin!

[@ResQuetzal]

Awesome tutorial. Thank you!

[@dinomonaco2665]

This is exactly what I’ve been waiting for Trevor! Awesome. Keep em comin🤓

[@AstroPilotchannel]

Thank you!!

[@rd7042]

Tutorial is excellent. You go into depth in your explanations. I find this easier than photoshop! Thanks

[@AstroPilotchannel]

Thank you, glad I could help

[@alcopa1fan]

You have given me great instructions on how to use Gimp. This program and your explanation fully covers just about all we need to know about post-processing. Great work, keep up the great videos on processing with Gimp. RFB

[@AstroPilotchannel]

Thank you!! I’m so glad I could help! All the best and clear skies!!!

[@domenicomarongiu]

Thank you! I'm a big Gimp fun, I learned a lot from this tutorial.

[@AstroPilotchannel]

Thank you, glad I could help

[@jimm5593]

Wow! Thank you for this excellent tutorial . Best one I’ve seen. Keep up the good work, please.

[@meghjoshi7031]

Woah woah what a video! Amazing! It's so helpful to me. Coincidentally I was shooting the Rosette and editing on gimp when I saw this.

[@AstroPilotchannel]

Omg! Haha, thanks and I’m glad I could help😁, clear 🌌✌️

[@blaircolliver5194]

Thank you, that was great! I am a total newbie to GIMP, and I could follow along and was able to process my own image as you taught.

[@AstroPilotchannel]

Awesome!! Glad I could help!!

[@achernarpolis8842]

Thanks man, just got first light (Orion) with my Z61 and SA last night. What a feeling to see it pop up on the dslr. Can’t wait to try this once the clouds roll in. For now, more photon capture!!!

[@DavidDeLuge]

Great video and I have followed along with you with a sample stacked image and the result was great. Thank you.

[@AstroPilotchannel]

Great!! Glad I could help 😁

[@StaffsBadger]

Thanks for the great video.

[@AstroPilotchannel]

Thank you so much!!

[@NoNameNoFamily-n7x]

Thank you very much for a very interesting lesson. Do you have tutorials on background extraction and gradient removal from astrophotography in GIMP?

[@milanhenegamage3576]

Great tutorial. Can you please do a similar one for the Milkyway?

[@KJRitch]

Thanks .This was a great help.

[@jpastroguy]

This is an awesome tutorial! I like you I want to leverage freely available software where possible. The results are outstanding and the cost is just right! Thanks for the highly informative tutorial.

[@AstroPilotchannel]

Thank you!!! Glad you enjoyed it, clear skies✌️

[@sungwhan2001]

Very good tutorial. Thanks

[@zefancyferret7585]

Thanks! I'm essentially a list puppy with gimp!

[@peterbarratt8699]

That's a winner !! Thanks, subscribed immediately.

[@Kay_jay_999]

thank you! learnt so much!

[@SterrenKijkenInDeStad]

Thanks for the tutorial. I really liked the star reduction in GIMP. I had not seen that before and will definitely start using that! I would personally never drag the black point so close to the left edge of the data. GIMP is very finnicky when it comes to clipping. If you look carefully at the histogram in the video, you will notice you were in fact already clipping data. It also introduces background noise sometimes. I would steer well clear of the left edge of the peak.

[@ollyb7371]

Excellent, thank you 👍🏻

[@declanwk1]

thanks for this excellent video. very clear. Are you able to give tips on how in Gimp to emphasise stars when taking images of constellations? When taking DSLR images of constellations, the bright stars do not stand out because the sensitive camera picks up a mass of weaker stars which can drown the detail. The brighter stars need to be enlarged if they are to stand out. could you use the value propagate filter to enlarge the stars?

[@mikelarson1018]

Thank you for such a great tutorial. Im completely new to this and found everything I needed, except Im lost at what to do with all the layers gas in do I recombine them as 1 or save them, Ive re watched everythinh 2 or 3 times. Thank you Mike

[@woody5109]

Brilliant image cowboy

[@ronaldg7522]

Thx for the tutorial.

[@Core-vu6mc]

Nice tutorial. I haven't touched Gimp in many years. The last time I saw it, it just had a bunch of floating dialogs and no central frame. I used to use Photoshop but I just can't image often enough to justify buying a subscription.

[@kevlarV2rocketRSV]

Brand new to this hobby. I have a Z61 scope and EQM-35 mount on the way to use with my stock Nikon DSLR. Do I ABSOLUTELY NEED a field flattener? Why or why not? I'm not looking forward to the processing aspect and don't want to pay for software so Gimp will probably be my software of choice. At least to experiment and see if I have the patience for the "process". Thanks for the video.

[@AstroPilotchannel]

First of all, yes you have to have the field flattener, without it all but the center of the your frame will have ugly elongated stars in the corners. I know it’s expensive but it’s a must. Secondly, That’s exactly what I did, I used gimp for over a year, it’s a great program definitely if your new, feel free to ask any more questions, I think you’ll love the processing it’s pretty amazing once you start stretching the image and reveal what you captured. All the best and clear skies!

[@kevlarV2rocketRSV]

@@AstroPilotchannel Thanks for the encouragement. $220 is still within my budget (just don't tell my wife🤫😁).

[@AstroPilotchannel]

@@kevlarV2rocketRSV great! Lol😂

[@valentinotera3244]

Aaand here we are 1 year later. After 3 years with a Manfrotto tripod (1 pod per year) I finally got an unguided mount right now: a very humble, second hand EQ5 GO-TO mount. I've always snobbed the Rosetta Nebula becouse I can't see anything on my D300 screen even after 120 seconds. Can I catch her with 2 minutes sub exposure and 3 hours of total integration (spread just before and after the meridian flip on a bortle 4 nightsky)? I mean even the Horse Head Nebula gently appears on the camera's screen after 2 minutes but Rosetta no way. Salute from Italyy.

[@marykrigbaum9021]

Is the process the same for taking stacked images and processing the Milky Way? Great tutorial 😊.

[@arcturus8218]

hi hav u found a good way of doing graidients or evening out the background coulor with gimp ive tried a couple of methods with not great sucses .cheers

[@tullyfisher]

Great help. Thanks :)

[@rickcudmore8156]

This is a great tutorial. I didn't know about the GMIC plugin. I have Photoshop CS6 but I prefer GIMP as it is easier to navigate IMHO. Hope to see more GIMP tutorials. I you have used Starnet++, I find it makes a difference.

[@AstroPilotchannel]

Thanks yes I have used StarNet++, its really cool clear skies!

[@pinteraron_bouldering]

Very good data, but I think you process a bit agressively, and a bit of star reduction would be killer in this image

[@carlosrojasrodriguez930]

Hello, thanks for the tutorial. I have attempted to capture this target without tracker, with over half hour of exposure. (Unmodified dslr) And I don’t seem to get any sign of the roestte nebula. Any advice on how to shoot it, or do I just need a tracker and modify my dslr?

[@AstroPilotchannel]

It is possible to do it with a stock DSLR but a tracker is a must, it would take thousands of untracked short exposures to get a good signal, your best bet would be to just go for the full modified DSLR and tracker, let me know if you have any more questions.

[@rickcudmore8156]

I am really impressed with G'MIC plug in for noise reduction. I processed the rosette nebula following your tutorial with excellent results Do you know if there any other astronomy applications in the plug in?

[@AstroPilotchannel]

Great!! Unfortunately I searched and searched and it doesn’t seem like there is anymore, I’m currently trying out a trial of Adobe Photoshop so we’ll see how that goes. But yeah I really like G MIC plug in its very useful, thanks and clear skies!!

[@ronlundgren4391]

Very good information buddy! Like you I haven’t wanted to spend money on software and have been using GIMP. Very little help on KZbin so have been stumbling along. Thank you!

[@thatraginbull8569]

I'm really struggling to bring much nebula out with gimp. Trying the heart and soul. If I change the settings to a crazy amount I get the red nebula without detail but if I go for detail its so so faint. This is not easy

[@AstroPilotchannel]

MORE INTEGRATION!

[@jmoreno6094]

@AstroPilotchannel do you apply same process to galaxies ?

[@FamiliaColl]

Nicely done video, quick question why choosing 16bit instead of 32bit is there any difference between the two?

[@TheAmol297]

That looks like some great data you there on the nebula? Could you please mention somewhere in the description what gear and settings did you use to capture this image? Sorry if you mentioned this in the video, I was fast forwarding to the parts I wanted to see :P

[@AstroPilotchannel]

Thank you!! Lol no problem, I should have thought to put it in the description, Gear: Sky-Watcher Star Adventure. Telescope William Optics Zenithstar 61 APO. Camera Astro Modified Canon 450D XSI, Filter IDAS LPS D2 light pollution filter. Along with guiding and dithering with the QHY mini guide scope and asi120mm mini guide camera, and I used sharpcap for my precise polar alignment.

[@yuvalr1478]

You can try using photoshop if you want to. It's pretty fun and also people like astrobackyard use it. Anyway, depends on what software is comfortable to you.

[@AstroPilotchannel]

I probably will since it’s like a 7 day free trail, I might be hooked after that lol 😂

[@BaronvonSmoogle]

I hate subscription programs like Photoshop.

[@yuvalr1478]

@BaronvonSmoogle Well then don't use them or find a pirate version

[@BaronvonSmoogle]

@@yuvalr1478 That is EXACTLY what I did.

[@yuvalr1478]

@@BaronvonSmoogle which one?

[@robertweglarek]

Great! Did you shoot it with any filters or just your camera and telescope?

[@AstroPilotchannel]

Yes I used the idas lps d2 filter

[@valentinotera3244]

What's the secret for a straight black point istogram? A correct masterflat?

[@AstroPilotchannel]

The key to a really straight histogram where you can get a good black point without clipping data is lots of integration and good darks, bias and flats at least 30 each

[@valentinotera3244]

@@AstroPilotchannel Got it. I never made a good flat yet. It's normal to have more signal on master bias instead of master dark?

[@AstroPilotchannel]

not completely sure, darks are more useful for noise reduction though

[@valentinotera3244]

@@AstroPilotchannel I can't see any difference (I mean pixel by pixel) with or without darks and biases. Everything ran on SIRIL's automatic batches so I can't understand this thing.

[@AstroPilotchannel]

@@valentinotera3244 interesting, I’m not familiar with that software, but when shooting short exposure like that, it won’t be as noticeable as long exposures just because less noise, overall though your probably better off with them than without, thanks and feel free to ask any more questions. Clear Skies😀

[@woody5109]

How did you set your screen up like that, histogram / layers on the right??

[@AstroPilotchannel]

If I remember correctly, you can access tools tap and click, drag and drop what windows you want, similar to Adobe

[@woody5109]

Cool, I’ll tray that, thanks

[@woody5109]

*try

[@woody5109]

Is this on a Mac or an IBM computer?

[@AstroPilotchannel]

In this video I was using my Panasonic TOUGHBOOK cf-53

[@valentinotera3244]

What do you usually expect from 140" total integration images?

[@AstroPilotchannel]

If I have 140 2 min subs that’s great, you can expect really good signal to noise ratio with a really nice outcome

[@valentinotera3244]

@@AstroPilotchannel No no, 2 minute total integration. 1" lights.

[@AstroPilotchannel]

@@valentinotera3244 oh ok got it, with just 1 light frame depending on the object you will see it quite well but to get a good image out of it will be almost impossible, it will be overwhelmingly noisy once you star stretching it.

[@valentinotera3244]

@@AstroPilotchannel ahah I'm really bad in english. I do not have a tracker only a Manfrotto tripod. So I meant many subframes (usually 140), but only 1 second exposure each.

[@AstroPilotchannel]

@@valentinotera3244 ah I see, yes that’s what I used to do before I got a track too! It is possible to get some nice photos definitely if your shooting very wide field of view, it becomes more challenging with more focal length. But you might want to to do like 300 frames to up your signal.