Phantom v640 provides detailed high-speed images

Vision Research has introduced the Phantom v640 Cinemag camera, for industrial, military and research and development applications that demand ultra high-speed imagery with maximum detail. It offers a recording speed of more than 1400 fps at its full resolution of 2560 x 1600 pixels. For higher frame-rates, users can reduce the camera's resolution, increasing the speed. At a reduced resolution, the Phantom v640 offers a maximum frame rate of 300,000 fps.

This camera can also record at more traditional frame rates for normal use - as low as 10 fps. For example, when recording at 1920 x 1080, users can achieve frame rates of 10 fps, increasing to more than 2700. At maximum resolution of 2500 x 1600, the wide aspect of the Phantom v640's CMOS imaging sensor allows users to keep a moving target in the frame for a longer time than possible with traditional square imaging sensors. The camera's peak quantum efficiency (QE) has been improved to 60 per cent.

The improvement in QE is paired with reduced noise-equivalent power, large pixels and micro-lens technology. Micro-lens technology is designed to increase the efficiency of the Phantom v640's CMOS sensor. It utilises a tiny lens bound to each pixel to direct incoming light more efficiently into the active areas of the photo site. An internal mechanical shutter provides a method of calibrating all of the CMOS sensor's pixels, ensuring accurate images.

To ensure optimal performance while using a digital high-speed camera, a current session reference (CSR) should be completed. The Phantom's internal mechanical shutter allows a CSR to be conducted remotely through a software command, saving time. The Phantom v640's internal mechanical shutter allows the user to simultaneously perform a CSR for all cameras in use. The Phantom v640 features 8Gbit of high-speed dynamic RAM, with the option to upgrade to 16 or 32GB. The internal high-speed dynamic RAM can be divided into up to 64 segments, allowing for the recording of multiple back-to-back shots without having to offload image data to the Cinemag or from the camera.

The Phantom v640 is also ideal for particle image velocity applications. The camera features a timing resolution of better than 20 nanoseconds, one microsecond straddle time, as well as a frame-synchronisation signal available via a dedicated BNC for easier cabling and increased signal integrity. The Phantom v640 is compatible with Vision Research's Cinemag system, a small and light non-volatile, hot-swappable memory cartridge with up to 512GB of memory. Cinemag mounts directly to the body of the camera. It can quickly offload images from RAM and begin the next shot. It also lets the user record full-resolution video at a maximum frame rate of 250 fps directly to the magazine, enabling long recording sequences.

The Phantom v640 includes a component video-out port for use with a viewfinder, allowing recordings to be viewed immediately. Users can access four different configurations: two identical 4:2:2 outputs; independent 4:2:2 outputs where one is live and one is playback; one dual HD-SDI 4:4:4 output; or 4:4:4 playback on the dual HD-SDI while the user has a live image on the component viewfinder. Also available with the Phantom v640 and Cinemag is the Cinestaiton, which accepts a Cinemag and allows download to computer via 10GigE Ethernet, or connection to recorder via dual HD-SDI.

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