I was having a problem with my moonlite focuser that wasnt like anything you described..... Turns out that i have ZERO backlash. But the compensation was turned on with values entered in both in and out. The person who helped me set it up assumed i would have some and told me to enter 10 in and 10 out as a starting point. Zerod them both out and everything is PERFECT now.
@CuivTheLazyGeekАй бұрын
Yep, Moonlite focusers are amazing like that :)
@juno16663 жыл бұрын
Just tried N.I.N.A for the first time mainly because of autofocus. Your video is EXTREMLY helpful! Autofocus worked perfectly the first try! Also, your video on the N.I.N.A. Advanced Sequencer cleared my way through the smoke and it makes perfect sense now. Thanks for the great help!
@richardsauerbrun24124 жыл бұрын
I have been fighting a lack of quality automated focus for some time with both NINA, SGP, and APT. All three of these apps use a similar approach, and none were working well for me. After watching your explanation of how NINA auto focus works, I understand the details of the process and how each configuration value is used. NOW I can update my settings (which were way off) and give it a go tonight. Keep these videos coming ... you do excellent work!
@CuivTheLazyGeek4 жыл бұрын
Excellent to hear that this is being useful, and thank you for the feedback! I'll go into the actual configuration details in a later video.
@richardsauerbrun24124 жыл бұрын
@@CuivTheLazyGeek Cuiv ... I have the Celestron Focus Motor on an 8" SCT. This motor takes 1,000 steps to make a full turn of the focuser shaft. I currently have NINA configured with 40 steps and an initial move of 5. Those 200 steps take me out a quarter turn to start the auto-focus process. But I am still not getting a proper V curve. Do you think I should I go father to start? Maybe 5 X 80?
@fernandoapausa49314 жыл бұрын
Richard Sauerbrun Hi Richard. I’m about to order this week a Celestron Focus Motor to install on my SCT 9.25. How is overall your experience with this focuser working with NINA? Did your problems get finally solved? Any hint to consider? Thanks!
@robertcalise86344 жыл бұрын
Thanks for that explanation it confirmed what was going on with my auto focus run .I worked hard to eliminate my backlash and now getting a MUCH better curve. BTW im using trends with hyperbolic and NINA calculates 23 steps of backlash now instead 100+ before. Great Job More Videos Please
@SoftwareSavesMe4 жыл бұрын
Outstanding explanation. Thanks for making this video. And thanks for helping me feel better about the ridiculous price I paid for my FeatherTouch autofocuser!
@CuivTheLazyGeek4 жыл бұрын
Oh FeatherTouch focusers, like Moonlite, are such a work of art! Never regret getting one! And thanks for the feedback! :-)
@M31glow4 жыл бұрын
Great post! I have been making my way through all of your past posts.
@CuivTheLazyGeek4 жыл бұрын
Wow, thank you! Binge watching can be tiring though, take some breaks ;)
@TomDastrup3 жыл бұрын
Very informative. Thank you. As an aside, your English is way better than my French (non-existent!). There's a phrase that you use in a lot of your videos: "this is how it looks like". The correct way to saw this is, "this is what it looks like" or "this is how it looks". Either one of those works. Please don't be offended, I really do love your videos and your enthusiasm for the hobby! :)
@CuivTheLazyGeek3 жыл бұрын
You're right! Thanks for pointing this out - it's a fossilized mistake I make. I am aware of it but I just can't seem to stop myself from saying it...
@TomDastrup3 жыл бұрын
@@CuivTheLazyGeek old habits die hard. 🙂 In your nina you have the option to figure out your autofocuser's backlash. Why don't I have that option in nina? The button is missing for me.
@AstroSoundscape3 жыл бұрын
I am just considering getting an autofocuser and found this very useful and clear. Thanks Cuiv I hope you're doing ok 👍
@demetrios61953 жыл бұрын
Thank you Cuiv , many greetings from Greece
@MarvelousLXVII Жыл бұрын
Cuiv, you are the best!
@astrojw10392 жыл бұрын
To speed up the autofocus, it would be handy if NINA had a "smart" feature. Basically while imaging THAT night, whichever night that may be. The curve it learns from, so it only moves out enough to get the out of focus, and moves into focus. Once it moves enough to where the HFR changes enough say by 1 or 1.5 it goes to the best number vs it continuing. I realize this would be dependent on your setup, but some focusers don't suffer from backlash (like the starlight I use on my tak). I do my autofocus in 125 steps for each point, it nails it every time at the best point (bottom of the curve). I do 125 because I found it gives enough movement to see a difference. I manually focused once in sharpcap, using their tool. Then I went to NINA ran an autofocus, found it landed pretty much where I was in sharpcap (step number). So its pretty darn accurate in NINA, just wish there was a smart feature to speed up focusing.
@CuivTheLazyGeek2 жыл бұрын
That would make sense - we already fit a curve (parabolic or hyperbolic) so if NINA were to remember the function it could in theory get to the minimum after measuring a single point. Although it could be mistaken in the direction it takes, so it would still need to double check, and if HFR went up (and there is a potential issue here of getting by mistake where HFR is no longer measurable, or noise is measured instead), go to the other direction. Feel free to suggest it in the NINA Discord, as I haven't done code for NINA in a long time now :-)
@enqueir2 жыл бұрын
great!!!!!!! thanks as usual .....
@Pescadoraficionado4 жыл бұрын
Thank you Cuiv! I am understand little More. I Will go threw your other vídeos about autofocuse 😀
@CuivTheLazyGeek4 жыл бұрын
I hope they help you understand even more!
@josephbuchanan81003 жыл бұрын
Thanks for this video. Very helpful
@enqueir2 жыл бұрын
you did a fantastic Job with these videos .... please cuiv .. come back ... :)
@fernandoapausa49314 жыл бұрын
Superb!
@CuivTheLazyGeek4 жыл бұрын
Thank you!
@fazergazer3 жыл бұрын
And each color will have its own curve. A perfect apochromat would have all the color curves matched.
@SoRealsEntropiaUniverse4 жыл бұрын
super explanation :)
@jmlocci5 ай бұрын
It looks like that in NINA the focusing temperature compensation only works with focusers that have an inbedded temperature probe (like the ZWO EAF). I am not using the EAF but another DIY ASCOM focuser (inspired from Julien Lecomte). Does anyone know of a possibility to plug a sort of independant 'ASCOM' temperature sensor that I could use for the same compensation purpose? I am using NINA and happy with refocusing in function of HFR changes, though, so it is more a curiosity question...
@tullyfisher2 жыл бұрын
12:00 Do not agree. Depends on how finely graduated the gear is. For ZWO EAF 90 is okay.. It's not the end of the world. - For a Pegasus FocusCube2 you can easily have a backlash of 1.000 ! ...but you also have MUCH more overall steps...- Also not the end of the world. - So it all depends. And backlash is NOT something "terrible", it's part of how the focusers are constructed. - As long as you compensate and the relation (!) is okay, it's all good.
@JH-rq7wp Жыл бұрын
Cuiv, I am starting with a DSLR canon. Is there an option to auto focus my telephoto lens within Nina? Thanks!
@SUDAFreak3 жыл бұрын
How did you determine a precise backlash measurement of 93?
@brianwalton30164 жыл бұрын
Don't know if I have to go to a different site for questions? I have a DC motor Focuser which is recognised in Ascom and operates in APT. However NINA will not accept it or recognise it? Is there a way I can use Ascom or change anything. I,m trying to get the Focus V graph.
@CuivTheLazyGeek4 жыл бұрын
Mmmh, it depends on the ASCOM driver - it needs to emulate an absolute position for your DC focuser to work with NINA... Do you get an error message when you connect it or move it? You may want to post on the NINA discord (Discord tab of the NINA website)
@screwyouyoutube549311 ай бұрын
Could you possibly explain how to setting up NINA with a OAG during imaging when you need to autofocus after filter or temp change? Do you just stop guiding first???
@CuivTheLazyGeek11 ай бұрын
There are options in NINA to stop guiding when autofocusing or filter change!
@charliewalsh92478 ай бұрын
I thought you were only supposed to set backlash IN OR OUT not both because, they are fighting each other. I saw this in another video. Is that right ?
@CuivTheLazyGeek8 ай бұрын
This is an old video - you have to set both if you use Absolute backlash correction (not recommended) but only one if you use Overshoot backlash correction (recommended). At the time of this video, overshoot backlash correction didn't exist in NINA yet.
@daveincanada47944 жыл бұрын
Cuiv, these are excellent videos! What's the deal with "max increment"? Is this a calculated value? Mine says 999999. Is this a problem?
@CuivTheLazyGeek4 жыл бұрын
Max Increment is a value provided by the ASCOM driver of the focuser. It is the maximum number of steps that the focuser can move in one go. If it's 999999 for your focuser, it basically means no limit, and is not an issue!
@BrokenPik4 жыл бұрын
My Pegasus autofocuser has 200 steps of back lash (in) and i have to use 125 steps x 4 to get a curve that works. time for a new one lol
@CuivTheLazyGeek4 жыл бұрын
Well, with the overshoot method, I think it can work fairly well! Still, it's amazing how much backlash all those focusers have...!
@BrokenPik4 жыл бұрын
@@CuivTheLazyGeek yea for 485$ CAD you d think...
@AstroQuest14 жыл бұрын
Well done video Cuiv - I learned a great deal. One question, when I run the autofocus after it gets done with the routine it says it goes back to the original focuser setting. Shouldn't it go to the optimal setting or am I missing something? Your about 12 hrs ahead in Japan so you are most likely setting up so happy imaging. - Cheers
@CuivTheLazyGeek4 жыл бұрын
It will only go back to the original focuser setting if it determines that the process has failed - e.g. you ended up with a worse HFR than what you started with. When that happens, it's typically because of uncompensated (or overcompensated) backlash.
@colmbrazel3 жыл бұрын
Super explained thanks.
@walterwold11683 жыл бұрын
One question: Im waiting for motorized for my two telescopes. For one one these telescopes I have a reducer. That means I have 3 options for focal view with these telescopes. Is it possible to calibrate this "backlash" for each setup and save this in NINA?
@CuivTheLazyGeek3 жыл бұрын
In theory the backlash should be the same, since it's the mechanical steps of the focuser - that being said, you should just use backlash overshoot compensation (which was added later in NINA), so that you can just set a large enough value that will cover all scenarios
@walterwold11683 жыл бұрын
@@CuivTheLazyGeek Thank you. Ill check it out. I need to see your videos of how to use NINA first ill guess ;) I actually noticed some profile editing in NINA. Perhaps its possible to setup several setting for each rig.
@paulbarrett4234 жыл бұрын
I was just looking for something like this, I tried nina AF the other night ( never used autofocusing before) but knew about the V curve. I was surprised as my graph went all over the place in a zigzag fashion, i let it run knowing my original HFR was around 4.4 and it finished on 3.0. so im guessing it stayed on 3.0 when done? but still dont understand why i dont get a curve. thx for the tutorial
@CuivTheLazyGeek4 жыл бұрын
That typically comes from a step size that is either too short or too long, or sometimes star detection settings. This could be of help: nighttime-imaging.eu/docs/develop/site/advanced/autofocus/