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INDI Library v1.8.7 Released (21 Nov 2020)

Nov. 2020 Release brings significant improvements to streaming and recording videos. Support for new drivers including Estatto focuser and Pegasus falcon rotator.

Dithering....

1 month 1 week ago
gilesco
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Dithering.... #62049
You might actually benefit from deliberately introducing a small error in your Polar Alignment, yes, your stack may have slight rotation in it, but you might also be able to address part of the rain effect in parts of your image. But I agree with the previous poster, I don't think Dithering in 1-axis guiding is going to be very effective.

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1 month 1 week ago
Euripides
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Dithering.... #62051
It all began when I found those black patches on my images. Besides those patches walking noise was visible (tried to point it with those arrows)



www.cloudynights.com/topic/726700-does-t...-set-of-dslr-images/

This is also the result without even know what is dithering.



This is a result of Stellarmate and 5px dithering. I think it is an improvement. Then I've read that in fact with DSLR people go even further with 10-15px.


So the 1st M33 is with Stellarmate and 10px dithering, then I had all those issues with Astroberry and Internal Guider dithering and tried the M33 above with PHD2.
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1 month 1 week ago
Euripides
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Dithering.... #62052

gilesco wrote: You might actually benefit from deliberately introducing a small error in your Polar Alignment, yes, your stack may have slight rotation in it, but you might also be able to address part of the rain effect in parts of your image. But I agree with the previous poster, I don't think Dithering in 1-axis guiding is going to be very effective.


Hmm this is an interesting idea! A small PA error combined with dithering, it could work.

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1 month 1 week ago
mswhin63
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Dithering.... #62084
If you use PHD2 for dithering, set the dithering method to spiral or random if it is available. I had the rainfall problem and has been eliminated

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1 month 1 week ago
Euripides
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Dithering.... #62088

mswhin63 wrote: If you use PHD2 for dithering, set the dithering method to spiral or random if it is available. I had the rainfall problem and has been eliminated


I had the random method checked


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