Hi guys !  At start sorry for my English.  I'm first person in my city who rent a a7iv for test (Poland), Warsaw) and start talking to people about overheating problems In my opinion a7iv is good camera but have few problems which will be out soon. All reviews are wrong and they lie about test and time of long recording. I didn't have much time for all test but few my test bellow!. Please do your own test and write in comments tripod + open screen, temp set to HIGH 4k HS 200 Mb