Abelcine has written a comprehensive overview and review of the Phantom Flex4K, from Vision Research.
The Phantom Flex4K does 4K at 1000 fps, and 1080p at 2000 fps:
|Format||Resolution||FPS to RAM|
|DCI 4K (1.89)||4096×2160||1000fps|
|DCI 4K (2.35 crop)||4096×1744||1240fps|
Sensitivity and dynamic range are important benchmarks in digital cinema. Early testers have said the Flex4K has the least amount of noise of any digital cinema camera in existence. The lack of noise in the blacks means the camera can be rated for a range of shooting conditions and corresponding exposure values, from 250 ISO to 2000 ISO. This ability contributes to the camera being considered both a high-speed camera, as Phantom is known for, as well as a standard frame rate camera.
The Flex4K sensor is slightly larger (31.7mm diagonal) than a Super35, 3-perf film frame (28.5mm diagonal). Since 35mm format lenses are meant to cover the full film frame (31.1mm), virtually all PL and Panavision mount lenses will cover. The camera can also be fit with Nikon F/G or Canon EF mounts.
The slightly larger sensor and 4K resolution mean that anamorphic lenses will work and produce a very high-quality image with a minimum (16%) of focal length difference.
In 1920×1080 mode, the image sensor is the equivalent to the Super16 image circle of 14.5mm, which means that Super16 lenses can be used without an adapter to achieve 2000fps.
Has this camera been tested? Yes:
Award-winning conceptual photographer Craig Cutler is always looking for a new way to tell stories with images. When Craig was building a new commercial demo reel, he turned to cinematographer Steve Romano to try the prototype Flex4K camera.
In Craig’s NY studio, they created a near monochrome world with liquid, movement, turning umbrellas, hard light, black background, high frame rates, and 4K resolution. The images are starkly beautiful with water highlights against dark background bouncing off a black spinning umbrella. High dynamic range and a super low noise floor contribute to the effect.
Watch some of Steve and Craig’s Flex4K footage below and don’t forget to watch it in 1080p!
Read the full overview here and the review here (with additional production notes and videos).