Astro Pixel Processor and ASI294MM artifacts?  

@aleix To me these look like hot pixels that have been shifted a bit during the night. Are you sure that your darks are good so that APP can get rid of the hot pixels?

Thanks @wvreeven for your quick reply. I just started a new serie of darks and bias to see if the problem comes from there. I'll keep you updated.

Could it be related because I left all at deffault mode? I did not adjust any clipping settings.

Thanks again,

Aleix

I captured new DARKS, BIAS and the problem persists. I also used MEDIAN SIGMA and also persists. Could it be caused by tha lack of dark_flats? My flats were 0.5" exposure... I only captured 0.1" BIAS, no dark_flats.

Thanks so much,

Aleix

@aleix Can you upload some lights and some calibration data to

https://upload.astropixelprocessor.com

using upload3 for both username and password? Create a folder aleix_hot_pixels and put the data in there. Then we can have a look and try to help you. Thanks!

@wvreeven Yes, I do that. Thanks.

With CMOS camera you should avoid taking bias: instead, it's mandatory to take dark-flats.

Then you should take flats with longer exposure, to say at least above 1 sec, better from 2 sec. 

@ippiu

Thanks. I'll try that as well. My flats are 0,5" in average... Should I capture 2"?? Not the exact amount of time?

Never had this problem with my old ASI1600MM. Worked with BIAS along 4 years (maybe I had issues that were not that bad).

Thanks again.

@aleix

I usually take my flats with 2 second exposure if i use l-pro filter; 3 second with l-extreme. Unity gain. 50 in total.

I'm using a cheap Lacerta led panel with dimmable light so that I can adjust light to match exactly above exposures depending on filter used. 

Posted by: @wvreeven

@aleix Can you upload some lights and some calibration data to

https://upload.astropixelprocessor.com

using upload3 for both username and password? Create a folder aleix_hot_pixels and put the data in there. Then we can have a look and try to help you. Thanks!

Already done. Thanks for your support. As always, excellent!!

Posted by: @wvreeven

@aleix Can you upload some lights and some calibration data to

https://upload.astropixelprocessor.com

using upload3 for both username and password? Create a folder aleix_hot_pixels and put the data in there. Then we can have a look and try to help you. Thanks!

Already done. Thanks for your support. As always, excellent!!

@aleix Thanks a lot. In tab 2 at the bottom in the Cosmic Correction section I enabled "hot pixel kappa" and left it to 3.0 and then the hot pixels disappeared. Please give that a try and lower it to 2.5 if 3.0 doesn't work for you.

Posted by: @wvreeven

@aleix Thanks a lot. In tab 2 at the bottom in the Cosmic Correction section I enabled "hot pixel kappa" and left it to 3.0 and then the hot pixels disappeared. Please give that a try and lower it to 2.5 if 3.0 doesn't work for you.

Many thanks. Right now just trying this setting. I'll update soon. 

Thanks and best wishes,

Aleix

Problem solved! Thanks so much for your really fast solution. 

As always, APP always there when things go wrong. Many many thanks!

Regards,

Aleix Roig