As David Heuring writes in Variety, “cinematographers who attended NAB in Las Vegas this past April were intrigued by a new device that could not only revolutionize camera technology, but could change jobs in their profession — and possibly eliminate some.
The object of their attention: the Lytro Cinema professional light-field camera, on display as prototype, large and unwieldy enough to remind DPs of the days when cameras and their operators were encased in refrigerator-sized sound blimps. But proponents insist the Lytro has the potential to change cinematography as we know it.
The Lytro captures a holographic digital model of a scene 300 times per second via its “plenoptic” sensor, which sees objects from multiple points of view. In contrast with a conventional camera, which captures pictures by recording light intensity, Lytro also captures information about the light field emanating from a scene, recording the direction of the light rays.
It produces vast amounts of data, allowing the generation of thousands of synthetic points of view. With the resulting information, filmmakers can manipulate a range of image characteristics, including frame rate, aperture, focal length, and focus — simplifying what can be a lengthy, laborious process.
For example, Lytro’s ability to measure the depth of every object in a scene gives filmmakers the ability to simply delete anything beyond a certain distance from the camera, letting them do green-screen work without green screens. Another bonus: Lytro can gather enough data to produce left- and right-eye views for 3D.”
Essentially, what the Lytro does is capture so much information on every aspect of a scene that it’s documenting that it is possible in post-production to do almost anything with the image, from creating a rack focus where there was none; to bringing an image into focus if it wasn’t shot that way; to creating immediate 3D effects during image capture; and of course offering VFX (visual effects) techs a million ways to manipulate the image in post=production, which can be a good or bad thing.
As Heuring continues, “the photographic concepts behind Lytro have been around for more than a century, but advancements in optics, sensor technology, and processing power renewed interest a decade ago. Stanford alum Ren Ng founded the company, simply called Lytro, to commercialize these concepts.
DP David Stump, chair of the camera subdivision of the Technology Committee of the American Society of Cinematographers, helped make the demo film that screened at NAB. Like many, he’s optimistic about the device’s potential to become a standard filmmaking tool.
Others are more cautious, and there is some concern about the effect on employment prospects for camera crews, despite assurances from many quarters that the device cannot simply operate itself; it requires a cinematographer’s trained eye and sensibility.” So, here it is, something new and potentially promising, to be used or abused; we’ll have to see what happens.