I have owned the A7R body since around October, 2014 with absolutely no issues at all until the beginning of June 2016.
Since June, a white streak has appeared in the vast majority of photos taken with the body and any of the three lenses I own (28-70, 70-200 and Batis 18mm). The streak is increasingly prominent when using faster shutter speeds.
Please let me know if you have any idea what the streak may be from and what steps should be taken to correct it.
Any feedback welcome!
(the attached photos are straight from camera, by the way).