GoPro launched the “Dual­Hero 2.0” stereo rig in 2014. This offered amazing sync ability (pixel level), low cost and high resolution (17:9 2.7K@30p ­ which looks amazing when viewed on a 4K 3D monitor). But the consumer stereo 3D market had already crashed. 3D continues to be a strong attraction at the cinema because the viewing experience is carefully controlled. This same challenge is now plainly visible in the emerging VR, AR and MR technologies, but there are really compelling reasons why 3D, either as stereo output or depth­map will play an essential role in the coming video technologies. © 2016, Society for Imaging Science and Technology (IS&T).