Astrophotography Processing: The Rosette Nebula

[@joedavies1524]

As a beginner I have watched countless on "how to process" vids, but this is the best one I have seen. Thanks so much for posting this.

[@robertsipes7391]

You have helped me past my "fear" of photo processing. I am going to rerun this video and go through your techniques. Thanks, I can't wait to get started on some of my own photos!

[@lawr0]

After that first stretch I was like wow, what a short video. That's some insanely good data man! I'm going to try this target again.

[@TheMinds4theye]

Great video and easy to follow I really appreciate it.

[@zalllon]

This really needs more likes!

[@ivanpierce479]

Killer vid. I dig all your stuff ... keep being ridiculous and educational...it keeps me coming back

[@garydaniels7462]

yes great work like your style thankyou good pace easy listening

[@justdigit]

Holy detail 🤯

[@craiglowery4427]

Thank you Walt. I've been struggling to learn PI the past few months and can't wait for your next video

[@RahilSethi]

What a fantastic work! I'll copy your methods when I shoot Rosette the next time.

[@richardmattas4003]

thank you...keep 'em coming!

[@paultutton9443]

A really useful guide to your workflow! Cheers Walt, subscribed 👍.

[@ujjwaldatta6713]

Always learning something new. Thanks

[@joechunter1]

Great video! 👍 Thanks for tips. It has also been very cloudy here in Colorado. Hardley any imaging this winter..

[@SteveZodiac777]

Thanks for a great tutorial - excellent image!

[@Dexterblows]

Best tutorial I've seen. Thanks

[@bralampt]

Crazy good data! You are a true inspiration Walt🤘

[@Tony-Elliott]

Great tutorial Walt, thanks for sharing your work , looking forward to seeing the pixinsight video

[@NightscapeDK]

Awesome tutorial, and thanks for keep bringing good videos🤘

[@OldGirlPhotography]

Absolutely stunning. And I very much would like to duplicate your treatment. I've shot this as well, in the few nights of clear sky we've had this winter. Looking forward to seeing if I can come close to your presentation.

[@MrKiwi91123]

Imaging this as I type, great timing walt

[@deltaastrophotography]

Oh good luck!

[@carollines7994]

Sweet…. Looking forward to my idiots guide to PI 🤣

[@meianoitee01]

Amazing video! I have learned a lot

[@janqui60]

Man the quality of your data is AMAZING! I just tried the Rosette Nebula last night but it seems that only a total of 45 min of exposure with a stock mirrorless camera is not even close to the quality of the data you have, Im struggling to get any color out of the nebula. Keep it up man your videos and tutorials are GREAT

[@martinpeffers1953]

Amazing tutorial, I'm a newby in photoshop, that was very informative. Please do some more about photoshop👍

[@UNLKYHNTR]

Yay, a new upload 😃

[@Chorge1972]

Big like!!! Only one question: wouldn’t it be easier to stretch the stars separately instead of shrinking them later?

[@thegodfather4713]

Hello my friend. Thanks for the video. There are a few things I'm wondering about. Is the point of playing with the color channels in the levels section with the colors blue, green and red to bring out the colors better? What is your purpose? why not use this technique when processing milky way photos? Also, for the best color adjustment with the levels section, do these colors have to be at the same height in the histogram? (I don't understand much about the histogram)

[@ashandsnow1873]

Hey Walt! Love your channel and this vid. Quick questions? I am a beginner and am looking to post-process about an hour's worth of data (stacked) of the Crescent Nebula, via Photoshop. Is the Rosette Nebula similar enough to the Crescent Nebula such that I can process my work by following this vid? Or can you recommend anything for me to follow? Thank you!

[@maddinw6232]

Great Video! Do you consider making a video in how to convert that one into a fake hubble palette picture ? maybe with siril? that would be awesome! :) BR, Martin

[@neild108]

Great info, Walt. May I ask, did you choose your combination of telescope and camera in part due to the rule of thumb (which I've just come across but which is apparently common knowledge in astrophotography) that to get properly defined stars, you must end up with a result of between 1 and 2 when you apply the following equation to your equipment specs: pixel size (of camera sensor) divided by focal length, times 206. I notice that with the T5i pixel size of 4.29 and your Radian telescope focal length (assuming that it is correct to multiply your 275mm x crop factor of 1.6 = 440mm) you get 2. I have two cameras for astrophotography: a Canon 6Da, and a Canon R5, and want to use my Canon EF 100-400mm "L" lens to shoot nebulae. This equation doesn't work out for my 6D--I get a result of 3.4 with the 6D pixel size of 6.55 and my focal length of 400mm. Fortunately, with the R5, if I use the 1.6x crop mode, I can achieve a focal length of up to 640, and that gives me a good result--1.4. Any focal length above 450 gives me a result within the rule of thumb. Question: from your experience, do you think is this rule of thumb is still applicable today? It would be nice, in my case, to be able to use my astro-modified 6D. But if I can't get decent image quality that way, I take considerable consolation in the fact that your how-to videos have shown me how to pull out the colors of the stars and nebulae to much, MUCH better degree this year than in previous years. I've been using Starnet++ to create a starless file, and editing that using the methods you have explained, and it works very well. If my data is good, I can get pretty nicely colored Lagoon and Swan nebulae in my Milky Way shots. Very much appreciated!

[@nossoflareact]

Oh God! So perfect! 🤯🤯🤯

[@sakis19081994]

Amazing tutorial !!! how come you not using the gradient x terminator plug in from Rc Astro? I find it super useful alongside with the noise one

[@deltaastrophotography]

I almost always use it. I left it out of this video because there wasn't much of a gradient and I don't have a free alternative to that plugin.

[@ianmacdonald2307]

Simply brilliant as always Walt. There are always little tips and tricks up your sleeve which I gratefully absorb in my own workflow. I can relate to the wet winter by the way 🤝

[@sakis19081994]

@@deltaastrophotography yes your data was super clean !!! Well done for another amazing tutorial, you have helped me and I’m sure many people with your input !!! Great effort man 👍👍👍

[@AstroRef68]

Very helpful video Question What photoshop are you using now

[@yvessmeesters599]

I can only like it once 😅 thnx for the video

[@143maverick]

Walt what the total exposure time??

[@BlueLagoonPoolsAndAquatics]

How do you actually get this image zoomed in? Just resizing the image ?

[@deltaastrophotography]

Just a basic crop. You can crop in Photoshop, Lightroom, Instagram, Facebook, or whatever you like to crop with.

[@BlueLagoonPoolsAndAquatics]

@Delta Astrophotography I think I tried with PS but it still looked small to me, sorry I'm just very new to this hobby. BTW love the videos on your channel :)

[@deltaastrophotography]

@@BlueLagoonPoolsAndAquatics It's a long deep rabbit hole. My only advice is to take it slow and just enjoy it. Don't get too caught up in the gear side of things. You'll end up going into debt. I should have explained the cropping part a little better in the video. I'll make sure I talk more about that next time. Good luck and clear skies!

[@normanshafty]

Excellent! However, I would like to refer the honourable Mr Walt to the video he made a month ago on moon photography. Specifically the 10:36 mark kzbin.info/www/bejne/mqGuiXVtabmhrdU! I am really looking forward to that one. Also it would be great to know if there are any cheaper alternatives to photoshop for us poor old retirees.

[@Kadajpwns1337]

Siril is a great alternative to photoshop, it's specifically designed for astrophotography and it's free.

[@normanshafty]

@@Kadajpwns1337 Thanks very much, I'll give it a whirl

[@deltaastrophotography]

Yeah sorry about that. I had some pretty awful things happen to me that week. I'm just now feeling better. I need to get back on that.

[@normanshafty]

@@deltaastrophotography Really sorry to hear that Walt, very glad that you're feeling better. I devour all of your content, it's fascinating and presented in such an interesting manner that even an old duffer like me can understand. The Moon can wait, it's not as if it's going away (I hope), the most important thing is, you doing what's right for you, when it's right for you. Thanks for the reply.

[@ricardiumhues]

3 to 15minutes! hahaha my 8yr Lenovo scoffs in your general direction whilst taking 1-2hrs

[@deltaastrophotography]

Yeah I think my last computer took about an hour as well. It was also around eight years old.

[@indiehorror]

When the sky splits and becomes a rose red like melted butter ... koran rahman :37