"noise" in images

[niko]

Hi all,

I'm using an Orion Starshoot DeepSpace Imager v1.0 and Nebulosity as thecapture software (although same problem in Maxim).

I've been using this for a while with no problems but just recently I'm getting this "noise" or cross hatching in the images. I'm pretty sure I haven't changed any settings (like binning etc)

Anyone got any clues as to what might be causing it?

Many thanks in advance

niko

[alocky]

First impression is that is de-bayering gone horribly wrong. Is it a colour camera, and have you got the correct Bayer matrix selected if it is?
Cheers
Andrew.

[niko]

thanks Andrew

it is a OSC camera

I'm not sure where the debayering settings might be but I'll have a poke around

cheers

niko

[niko]

I think it's something other that debayering - I've tried to debayer the image but it doesn't address the "noise"

any further advice greatly appreciated

thanks

[Atmos]

Are you debayering before or after stacking?

[Ukastronomer]

As a professional sports photographer

I shoot a lot at iso 20,000 night, late, early am rallies so I find THIS FREE software GREAT

Just do a CUSTOM install

https://noiseware-community-edition.en.softonic.com/


BUT that is not noise, you have Morie or similar

https://en.wikipedia.org/wiki/Moir%C3%A9_pattern

[niko]

Many thanks. Good point about what it is because i never had this before and the various post capture debayering I tried didn’t remove it

I wonder if the sensor is fried?

[raymo]

If the screen is magged to 500% you get rows of something like teeth with
the colour changing regularly. I've never seen a sensor massively magged,
but could imagine one looking something like this. Weird.
raymo

[niko]

“Magged”?