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Doesn't that also happen when a 2D camera image changes focus? your eyes dart around at the new point: https://tadleckman.files.wordpress.com/2015/09/trooper_ra

• robotresearcher 9y ago
  No. You need to focus only on the TV screen. The camera operator focuses on the scene for you. It may be that as you look from the foreground trooper to the out of focus background troopers your brain attempts to refocus but fails, which feels funny. But if the camera operator and editor correctly anticipate your attention and focus on the right thing, you don't need to refocus or re-verge.
  • ramy_d 9y ago
    but i do need to refocus because i can't anticipate what the camera operator's next focus will be. It's still uncomfortable. As for 3d, i think its comfort is for the next generation of movie goers to decide on.
    • mehwoot 9y ago
      You don't need to refocus. You're focusing on the screen which isn't moving.
      • ramy_d 9y ago
        the screen isn't moving but the observable portion is. This change causes you to try to refocus but you know you're watching a movie on a 2D plane where you don't control the depth of field, so you let the change "guide" your attention on the screen. It's something some people are more used to than others. I don't like it and I feel like it pulls me out of a scene. Looking around in a well done 3D movie feels more natural because my eyes DO change where they converge which is a better approximation of real life when compared to 2D where none of that happens. Ultimately your brain adapts to what you expose to it the most.