I have the OLED viewfinder on my F5 and after a year and 2 months it quit working properly. Turned it on one day and the image was skipping and half of it had gone black. I tried reseating the cable and reseting the camera and firmware but nothing helped. I took the VF into the Sony service center in LA and a tech told me that the cable was fine and the problem was most likely with the viewfinder hardware. After a couple days I got a quote for a $1500 repair and I was reminded that my warrenty was only good for a year. I was a bit shocked. My camera has been lightly used, well cared for and lives in a foam padded hard case at all times. I told Sony that I was unhappy and mentioned that I have cameras with viewfinders that have been working fine with heavy use for over 8 years. Eventually Sony agreed to cover the repair under warrently even though it was experied by two months. I commend them for making that choice and taking good care of me as a customer. I have a small owner/operator business but I work for a lot of different television productions and I do my fair share of promoting the F5 with producers, directors, and other camera people because I believe its a great product. I hope that Sony continues to believe in this product and their customers enough to do the right thing if and when problems arise that are design or quality defects.