I apologize for the lack of info. Originally we were shooting on the Alexa at 23.976fps 1080 progressive and I couldn’t get picture at all. When we changed it to 23.976 1080 Psf, I got a great picture at first but the it got very shaky within the 1st 5 minutes. I kept powering it off but no difference. When I got home I used another HD source and the picture was fine. If must have something to do with the Alexa. I have used this camera alot but most of the time there is a DIT on set. These guys do t really know this camera very well. Any info could help tremendously. Thank you very much for taking time to help me out. Tom