Originally posted by discharged Now a while back I decided that I wanted to take full advantage of my many old lenses and I felt a need for better ISO handling so I decided that a full-frame was the logical next step. I went to the local store to get a feel for the Sony A7 and more specifically the A7S. After using the EVF for about 30 seconds I thought I was going to puke, literally.
I have no tendencies what so ever for car sickness or sea sickness so I don't know why I have such problems watching an EVF. Am I alone or are there more people with the same problems? Is sonys implementation worse than what others have?
In the news a few years back it was reported that users of 3-D virtual reality gear often suffered motion sickness. The problem was traced to an imperceptible lag between the user's physical motions and the resulting change in the visual image. The software programmers, greedy for more hardware resources to make the graphics more impressive, maxed out their use of the computer hardware as much as possible without creating a perceptible lag. Unfortunately, other parts of the brain were freaked out by the lack of synchrony between physical and visual sensory input and made the users sick.
In other words, I'm not surprised that EVFs give some people motion sickness.