Hello, I was trying out the #Alpha7RV. I was using the #24-70mm G ver II. I received this odd thing in the background and of some of my images. I really would like to purchase the a7rV as it is an excellent camera. But I am trying to figure out what this is. Luckily I have Photoshop and can remove it pretty well. But I can't have this happening in wedding and portrait images. Does anyone know what is happening here in some of my images? I would really appreciate the help.