Very noisy images with asi2600mc pro

Paco_Perez

Hello, my name is Francisco Perez. I recently bought an asi2600mc pro from a retailer in Mexico. Unfortunately the weather has been so bad and didn't have a chance to try the camera out until the las 2 weeks. I immediately noticed that the images were al lot noisier than those I was getting with my Svbony 405cc (IMX 294 sensor) and until now I have not been able to get at least decent results.

I use the camera at gain 100, 300 seconds exposure time and -10 degrees, all connected to an asiair plus

I see a lot of bad pixels in the MD and BPM, is this correct?
What do you think the problem is?

Even with 33 hrs of integration the noise is there.
I mean, I was able to get cleaner images with my svbony camera with only 4 hours of integration time.

Hope someone can help me.

hyiger

Paco_Perez

You will need to calibrate your images with dark frames to remove the noise. Are you stacking the frames? If so how many? Also, bias and flat frames will help with uneven field illumination, dust and vignetting.

If you are not already a member of cloudynights.com I would advise asking there as well. You'll get a ton of help.

Paco_Perez

here is a crop of the image

Tech@ZWO

Noise is normal, usually we shoot calibration frames to increase the SNR
Bias -for calibrating readout noise
Dark -for calibrating dark current noise, .etc

You can search online for some guides on how to shoot calibration frames.