ZWO ASI533MC PRO

Haggy38

Hi guys, hope you can help, a friend of mine recently bought a 533mc p, he’s leaving next to the sea 27C at night humidity 80%, he just cooldown the camera at once to 0C and this white spots appears doing flats, but it doesn’t appear in darks or when the camera is at room temperature….. any ideas?

Tech@ZWO

Haggy38 Could you send a fits file here? thanks

Haggy38

Astrop

I've seen that before and it pointed to ice crystals forming, changing the dessicant tablets seemed to help. Is the camera cooling beyond 0 Deg C when it happens?

x48drI7g

My camera is having the same problem, do you know how to solve it?

Tech@ZWO

x48drI7g Could you share the fits file here as well? or you can submit a technical ticket here. my colleague will help you.
https://support.zwoastro.com/