Dithering with the ASIAir Plus & EQ6-R Pro

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Dithering is a great way to reduce walking noise patterns and color mottle from your astrophotography images. Provided you have an auto-guider, Go-To Mount, and the proper software (in this case the ASIAir), you can do dithering quite easily.
Dithering just moves your camera and telescope very slightly in a random direction between each exposure. This random movement will help to remove distracting noise problems from your final image. Since the stars all need to be re-aligned during stacking, this should smooth out the color mottle splotches and walking noise patterns, leaving you with a noticeably cleaner image.
00:00 - Intro
1:06 - Go-To Setup
5:04 - Focus Telescope
06:16 - Polar Alignment
07:58 - Plate Solve
08:40 - Go-To Heart Nebula
9:35 - Dithering
11:55 - Begin Guiding
13:04 - Camera Settings
14:19 - Dither Test
16:49 - Walking Noise & Color Mottle
18:32 - Dither Comparison
22:00 - Outro

Опубликовано:

17 июл 2024

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Комментарии : 65

@l.m2517 2 года назад

Even 3 years after having fallen in Astro black hole I’m still learning so much from your videos ! I can’t thank you enough for helping the whole community so many years ! Thank you Peter !

@kylecormier9930 2 года назад

I really appreciate the way that you both verbally and visually show everything and describe things. It’s very concise in it gets me to understand things much better than somebody just talking about it or just showing you. I like the amount of detail you put into your videos and I hope to see more of yours in the future.

@Orozco_PNW 5 месяцев назад

Nice touch with the DKC music 😎

@whitefluffydogs3129 2 года назад

Welcome to Washington and greetings from Port Angeles! Thank you for such informative videos and for breaking things down step by step. Hurricane Ridge is usually open all night for astronomy.

@marksimonson5491 2 года назад

Peter Greetings and welcome to Washington from the Lost Ridge Observatory on Camano Island.

@GrowingAnswers 2 года назад

I recommend turning off dec mode in the graph. It will still dither in dec, but won’t guide in dec. as long as you are polar aligned well, dec guiding is not needed. It just makes stability take longer and also complicates stability during shots. Sometimes it will move the dec when it doesn’t need to because of the seeing. And seeing is rarely good unless it’s on a mountain or maybe if ur lucky, closer to overhead. I know you probably already know this, but I just noticed it was on auto in the vid. Might be helpful for longer focal lengths though.

@jeremy2296 2 года назад

THANK YOU PETER! My ASIAIR PLUS and EQ6-R Pro JUST arrived! I can't wait to enjoy your deep sky tutorial from your website as well. Your content is detailed and I love it 👍 looking forward to your videos dealing with light pollution.

@M4st3rDuck 2 года назад

I just started the plunge into astro. This video is a great way to see what my next steps will be. And the donkey Kong music is just icing on the cake lol.

@fa_engineer3687 2 года назад

Helpful as always, Peter! I'm just getting started in astrophotography and find it all quite intimidating. Your videos are an excellent source of help and inspiration to me.

@mikelockwood2104 2 года назад

Good to have you back....I have not tried dithering because of your comments from a year ago. But I primarily watched your vids because I had a Sky Guider Pro and ASI Air Pro with DSLR, your vids were custom made for that setup. Since then, I purchased an iOpton GEM45 Goto and a StellarVue refractor with a ZWO 294MC Pro. Now....I think it's time for me to try dithering. Thank you for a well timed video.

@shaunlever Год назад

Thanks mate - some great tips in here!

@chuengueyhwang8558 2 года назад

The footage is beautiful, Very good shot! Thank you very much! I wish you a peaceful day and good health! A new friend

@jarrettbrown2839 2 года назад

Thanks for the video, love the DK music.

@sdfontanini 8 месяцев назад

great video, thanks for the walkthrough

@TandemAdventures 2 года назад

Welcome to the PNW! I'm just over on Vashon Island. Really enjoy your videos! I'm just getting started. I certainly do appreciate your presence here as it helps me justify starting all this in the rain! Appreciate all your tutorials. Just a suggestion- socks with sandals are acceptable out here. ;-) Clear skies?

@TheBignick243 2 года назад

You move to Washington! Heck yes! I hope you caught the Aurora on Monday night!

@joshuadqueen 2 года назад

Just finding this video tonight. I moved from Northern CA where it's almost never cloudy to Tacoma area in WA. Sucks a lot so far. The last couple weeks have been so so, but only on work nights it seems. But tonight is supposedly clear, so I'm setting up.

@robertsipes7391 9 месяцев назад

Such a wonderful video. You are a great teacher. I am creating a "cheat sheet" for a workflow with the ASIAir Plus. This filled in a lot of gaps on dithering and guiding for me. Thanks for sharing! I hope you are enjoying Washington.

@chaddennis9289 2 года назад

Greetings from Tacoma, Washington! Dew can be tough this time of year and as others have stated our weather can be pretty tough for astrophotography. If you are out of the Port Angeles area there are tons of dark sites inbetween there and out to Forks. Not sure if Hurricane Ridge is open at night but that might be an interesting place. DM if you want to do a star Party!

@area51xi Год назад

Awesome content.

@bryanphanvn 2 года назад

Welcome to WA, Peter. I sold all of my gears because of the NW weather 😅

@AdvancedVisuals 2 года назад

Welcome to the west coast. You'll have many relaxing cloudy nights here.

@fazergazer 2 года назад

Dithering make a huge improvement on my noisy full spectrum modded canon T3i

@teslar1 Год назад

If you drill three shallow dimples in that concrete path it will speed up your set up even more. Makes it very easy to locate the mount and it’s hardly noticeable when the mount isn’t there

@physmc1 2 года назад

Welcome to Washington (from Seattle). With some luck, we may get 2 nights of clear sky in the next 6 months XD

@davidbright8978 2 года назад

You videos got me to started in this process.only problem I have is trying to set up the zwo 120 mini and the guide scope. Seems I can't get it to focus or pick up stars while my canon can pick up stars no problems. Would be nice if you covered getting thst little bugger set up.

@billvinson7859 Год назад

I grew up in Washington but my time in the army took me around the world. My last assignment was in Ft Irwin, California. It was right in the Mohave desert. A ten minute drive from my quarters and I was at the Goldstone radio antenna. B1 sky’s. When I retired I came back to Tacoma Washington. I belong to the Tacoma Astronomical Society. We go every summer to Goldendale Washington for our annual event. I also go to Mt Rainier Paradise Washington. It is around 6000 ft elevation and has Bortal 2 too 3 sky’s. Not as good as California but it works.

@deep-skyastrophotography475 2 года назад

Hi Peter, thank you for posting this video. I have an HEQ5 Pro ASIAIR and I have continous settling timeout errors. Any advice on how to resolve that? Maybe the timeout settings need adjustment?

@richardshagam8608 2 года назад

At 7:00 you make reference to setting up the mount in daylight towards Polaris. If you are repeatedly setting up in the same place, marks on the ground where the tripod legs sit are a great help.

@darkskyimages5911 2 года назад

Sometimes I forget about my own references myself. Thank you for inadvertently reminding me!

@darkskyimages5911 2 года назад

@tradde11 That is also a fantastic idea, especially since I always do imaging in the desert, this would make it easier. Thank you. 🙏🏻 Please let me know how it goes for you.

@figzastro-photography Год назад

Hey good video. Thank you. Curious to know what your dithering and guide settings on your ASI Air and AM5.

@poolsidestargeezer9338 2 года назад

Peter, I always slew using the AA+ straight to the object I want to image right after polar alignment. The ASIair plus moves to the object and does a plate solve to see if it’s on the object, corrects itself and is locked on (eq6r-pro and ASIair plus). I’ve not needed to move off polar north and do a random plate solve. Great video and sorry that you’re in cloudy damp Washington state.

@vrajeshpatel5026 2 года назад

Welcome to Washington. Yep, the dew heater is mandatory here outside of a month in summer.

@HogarthsAstrophotography 2 года назад

That focus with the bhatinov mask is slightly off, the centre line isn’t centred

@tombock336 2 года назад

Hi Peter -this is super helpful! I have a very similar set up so this is GREAT stuff. I did have a question for you....what external battery are you using to power your EQ6-R Pro? I am doing more stuff away from my house and really need a solid portable battery to run it. At least around 5 hours, or an average night of shooting, capacity. I see you are using a portable battery there but can't see what it is!! Thanks for your help!

@fazergazer 2 года назад

I’ve found that my camera lenses have to be set to F/4.5 or slower else the light cone is steep enough for typical narrowband data to go off-band, and very little light makes it through.

@MrSkySharks 2 года назад

Is this Donkey Kong Country music? Lol

@AndreasHoecker 2 года назад

Yes my friend!!!

@TheHelicapt 2 года назад

Can you share all your asiair plus settings. I’ll be getting a very similar setup. I have the same mount, what did you select in the drop down menu for mount as well?

@sailingfromswitzerland Год назад

Hi Peter. Isn't the setting of 10 pixels for dithering a MAXimum pixel movement, meaning it may be anywhere from 1 up to 10 pixels per dither?

@vaunsphotography6820 2 года назад

Welcome to Washington! Someday I'll get a better telescope. In the meantime I'll continue to use my Meade with my cellphone.

@markwelsh9068 Год назад

Super photo. Out of interest, what size of print could you make out of this photo? I'd be getting so many prints made of my photos (if I could make them as good as this) but I'd like to think they could be blown up to a decent poster size.

@hurdpcs2802 2 года назад

Peter, Where did you get the knobs for your OTA clamp? I would love to replace mine, the are hard to tighten decently. I'm in Boise and I'm starting to get a little dew on the grass. I have a Celestron Edge 8 HD with a 60mm guidescope. I have Astrozap heater straps on both tubes connected to a Astrozap controller. I run them at about 50% and they seam to do quite well

@hurdpcs2802 2 года назад

Peter, I took a little bit better look at your mount.... is that an ADM saddle?

@dogdronesearchdd3782 2 года назад

Awesome description about my noise problem I was wondering why they looked do blotchy.And why my mount wouldn’t sync I wasn’t moving it and plate solving I went right to object.Also I keep losing connection and it loads pictures slow since last app update in October.I restarted iPad and deleted app and reinstalled it and it isn’t connecting now.If I look in my settings my WiFi says connected to asiair but when I open app it says asiair not found.🤦‍♂️..Do you have any idea why that is happening Zwo Asiair customer service sucks .🤷‍♂️

@faizanrao3574 2 года назад

Hi Kindly share which ZWO ur using with Redcat 51?

@luboinchina3013 2 года назад

What happened to the RASA? That is my dream telescope.

@schleicher12000 2 года назад

HOw does the polemaster and the ASIAIR work together? Tutorial?

@luboinchina3013 2 года назад

Polemaster can be run by Android app through phone USB if I can remember

@marvinwhisman3333 2 года назад

Peter, it appears you are plugging into the USB connection on your mount head. I believe ZWO has put out a patch to deal with some problems using the USB port that requires a download of a file that gets burned to an SD card for the ASIAir pro. Did you do anything special to make the USB plug work? I think you discussed this issue in your Full Workflow video you did in March but wondered if you have done anything different since you now have the Plus version. Another great video. Your demonstrations on using the ASIAir have been very helpful.

@briankotak403 2 года назад

I had a problem connecting my Orion Atlas Pro mount to the ASI Air Pro using a USB. They would not connect in the software. The fix was simple - instead of choosing your mount from the drop down list, choose EQMOD. Works flawlessly. My AIrPro works flawlessly most of the time. Dithering works really well too!

@marvinwhisman3333 2 года назад

@@briankotak403 Thanks so much for the suggestion.

@briankotak403 2 года назад

@@marvinwhisman3333 No problem. I can’t take credit for it. I learned it from another person! Hope it works for you.

@diggerlenox 2 года назад

Dude what laptop software do you use to control your d780 settings ?

@defyent Год назад

This video gave me Donkey Kong country vibes.

@area51xi Год назад

That's a LOT of guide stars. I barely get 10 (edgehd 8, 0.7 reducer, 174MM mini on an OAG for guiding).

@elmikol2443 2 года назад

Why did you leave the dark skies for Washington?

@AdvancedVisuals 2 года назад

You can't power the dew heater from ASIAIR, it draws too much current.

@erikmardiste Год назад

Is dithering worth it ? Dont no what it actually does.

@markr6777 Год назад

How is the top comment not related to the Donkey Kong Country Coral Capers music?

@QuadraPixel 2 года назад

I don't doubt the importance of dithering, but dithering after every exposure seems a bit wasteful of time. But I could be wrong. Thanks for the video, you're doing a good job of convincing me to upgrade from my little Star Adventurer Mini to setup like this, hahaha