Strange result in Autodev
Strange result in Autodev
What do you think may be due to this curious shape of the image after using Autodev?
Re: Strange result in Autodev
It could be walking noise , what was acquisition details / setup are you guiding , dithering, taking flats , darks etc .
Re: Strange result in Autodev
Also autodev can be quite ugly until crop of artifacts etc. has been done
Re: Strange result in Autodev
Those are the paramethers:
Evoguide 50 ED
Coma corrector Starizona EVOFF
Altair 294C ( -10ºC)
Celestron Evolution
Darks+ Flats ( Histog. 50%)
Sharpcap
56x15" stack
No guiding
This is a screeshot of Autodev:
Evoguide 50 ED
Coma corrector Starizona EVOFF
Altair 294C ( -10ºC)
Celestron Evolution
Darks+ Flats ( Histog. 50%)
Sharpcap
56x15" stack
No guiding
This is a screeshot of Autodev:
- Attachments
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- Captura de pantalla 2020-03-17 a las 16.51.16.png (393.32 KiB) Viewed 6399 times
Re: Strange result in Autodev
That's a fork mount and not an equatorial, isn't it?
In which case what you are seeing may be walking noise combined with field rotation.
Not sure how to fix that - a wedge, possibly and then guiding. Or it may be that you need to change the way you obtain and stack your darks?
In which case what you are seeing may be walking noise combined with field rotation.
Not sure how to fix that - a wedge, possibly and then guiding. Or it may be that you need to change the way you obtain and stack your darks?
Skywatcher 190MN, ASI 2600 or astro modded Canon 700d, guided by OAG, ASI120, PHD2
Re: Strange result in Autodev
+1almcl wrote:you are seeing may be walking noise combined with field rotation.
This may be ameliorated (or even completely resolved) by dithering aggressively between frames.
Ivo Jager
StarTools creator and astronomy enthusiast
StarTools creator and astronomy enthusiast
Re: Strange result in Autodev
Many thanks to all for your advice.
I'll do what you told me
I'll do what you told me
Re: Strange result in Autodev
How are you getting on with the 50ED and that EVOFF?elpajare wrote: Evoguide 50 ED
Coma corrector Starizona EVOFF
Is it working well for you or is this your first image with them?
Re: Strange result in Autodev
This equipment belongs to a friend who asked me for advice, it is not the one I use.
He tells me he is happy, but having seen what you say, I have advised him to change it
I use a TSOptics C8 + IMX 294C and these things do not happen to me, my Autodev are clean
He tells me he is happy, but having seen what you say, I have advised him to change it
I use a TSOptics C8 + IMX 294C and these things do not happen to me, my Autodev are clean
Re: Strange result in Autodev
thank you for replying.
please could you update this thread if your friend fixes the problem and what the fix was?
I have the same telescope and am considering that field flatterer.
please could you update this thread if your friend fixes the problem and what the fix was?
I have the same telescope and am considering that field flatterer.