![]() ![]() Pros, especially ones that work solo, loved Canon’s innovations. The AF battles are a market within a market for these companies.Ĭanon borrowed its sensor-based, phase detection autofocus dual-pixel feature from its professional side, which features in the majority of its new cameras down to its Rebel T7i model. At the moment, you have to be careful which focal length you use for it to work as it’s been designed to, but this will only improve with new iPhone models.īut companies like Canon, Sony, Nikon, and others are providing camera autofocus aids that are now in the top five essential features to have. We’ll see more of that kind of immersion and point cloud use.Ĭomputational math will also flourish with smartphones like the iPhone 13, which uses real-time mask creation to blur backgrounds. The use of controlled volumes or depth information isn’t practical for free-roaming cameras, but it makes perfect sense for controlled environments like sets. This provides autofocus assistance that was unheard of a few years ago. Now however, autofocus sensors are placed on the optical sensor itself. So, in effect, Cvision gives you autofocus as you’re measuring from point to point for tracking subjects and pinpointed focus points.Īutofocus for the content creator is arguably much simpler and cheaper than the professional tools mentioned above, especially now that mirrorless cameras have arrived.ĭSLRs used to have their autofocus sensors placed under the mirror. What you’ll see is what is in focus, what’s behind, and in front through different colors. Rather, it’s assistive technology for the focus puller. This system isn’t designed to replace a focus puller. In effect, you can see the depth of field through the tablet that comes with the system. The two cameras produce a stereoscopic depth map, which allows the measurement of 250,000 data point clouds in real-time at 30fps. The system is based on two depth mapping cameras, which hang onto the front of your capture camera and give you a 62˚ view. It’s now called the Cvision focus assist and uses depth mapping to secure its focus points. Hālo becomes the technician, handling the focus so operators can concentrate on the creative performance.Ī third system is technology adopted by CMotion, but originated from a company called Qinematiq from Austria. The user interface shows a bird’s-eye view of all subjects and enables anyone to tap-to-focus or drag to follow focus with visual, audible, and haptic feedback. ![]() ![]() The Hālo autofocus system from Redrock Micro. The AI identifies all your subjects (people and objects) and tracks their distance and location. The Hālo Explorer creates a real-time scene map, combining pinpoint accuracy with up to 180 degrees of view. This system uses the same technology the automobile industry uses for collision detection and avoidance. Redrock Micro showed their Hālo focusing product at the same NAB Show. You can let the system pull focus for you, allowing you to decide when and how fast to move between subjects, or you can use the data to pull manually. Add offsets to the sensor so you can finitely place your focus. You can also set up several sensors within the system beforehand. You would place sensors on the areas where you want to focus-whether on an actor or a prop-something that’s moving, basically. The positional data streamed to the focus pulling motors on the camera to automatically pull focus. This enabled extremely accurate positional data, placing actors with sensors within a volume where the camera would read the data. The idea was to pre-visualize your focus by implementing a magnetic field, usually giving you a 24ft x 16ft area of motion caption coverage. In 2014, there was a new focus system from Andra at the NAB Show. There have been attempts to replace or supplement the focus puller with technology in the last few years. While the cinematographer is often praised for high-octane, hand-held action work, we should be equally applauding the focus puller. In a worst-case scenario, this can lead to losing jobs. These guys have it tough, regularly having to pinpoint the most minute degree of focus fall-off at high frame rates on large format sensors and at the same time using their focus to follow the DOP’s narrative design.Īs resolutions increase and formats like IMAX rise in popularity, the pressure on focus pullers will only increase.īut, most people don’t fully appreciate what the focus puller does, only paying attention when the focus isn’t met. One of the more esoteric careers in movie making is the focus puller. Even though professionals have largely shunned it, for the rest of us, video autofocus is in a golden age of innovation. ![]()
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