Looking for some ideas on what is causing this. I have the ZWO 183mc pro camera camera. I am using NINA to coordinate all the connections. The last two imaging sessions have been cold in the mid twenties. When taking my subs some will sporadically show as all black. The file size is the same for all the other images taken and it contains the fit header that I can see all the data info on the file. When I open these with the ZWO reader they are all black. If I try and stack these images in SIRIL they are rejected. Last night i took over 60, 3 min subs and six of the files were all black. What can cause this? Bad cable (already replaced once), or camera issues?
