The Imax 3D Digital Camera is a 38-pound custom-built tool for making 4K movies.
For "Transformers: Age or Extinction," the 3D camera was lowered rapidly down the side of a skyscraper for a scene with dueling robots.
Director and executive producer Michael Bay (right) shooting "Transformers: Age of Extinction" in China.
The Imax 3D Digital Camera can shoot 4K video at up to 100 frames per second.
The 38-pound camera is still small enough to be mounted atop a Porsche Cayenne.
Digital is gaining importance in cinema, but film still is widely used.
Imax's 3D Digital Camera mounted on a remote-control crane.
Michael Bay touts the Imax 3D Digital Camera.