ShutterFinder vs LidarAC

Stop guessing your shutter speed on set. Point your iPhone at a flickering light, tap Measure, and ShutterFinder tells you the exact shutter speed that makes the flicker disappear in your footage. HOW IT WORKS ShutterFinder films the light at 240 frames per second, finds the flicker frequency with spectral analysis and turns it into a shutter speed for the frame rate you shoot at. It then checks the result at a second frame rate, which unmasks fast LED dimmers that would otherwise look like ordinary mains flicker. Within seconds you know what to set. WHAT IT MEASURES • LED panels and practicals, tube lights, HMIs, neon, monitors and TVs • LED dimmers (PWM) and OLED screens, including many that flicker too fast for the camera to see directly • 50 Hz and 60 Hz mains, anywhere in the world • Mixed lighting: when two lights flicker at different rates, the advice takes both into account and shows the alternative BUILT FOR THE SET • Shutter as time (1/50) or angle (180°), one tap to switch • 23.98, 24, 25, 29.97, 30, 50 and 60 fps, plus any custom frame rate • Change the frame rate after measuring and the advice updates instantly • When no flicker-free shutter exists at your frame rate, such as some tube lights at 60 fps, ShutterFinder says so and gives the setting that leaves the least flicker • Honest results: too dark, too shaky or no flicker at all is reported as exactly that, never as a guess • The circle marks exactly what is measured; tap anywhere to focus • Measuring stops by itself as soon as the reading is solid UNDER THE HOOD • 240 fps high-speed capture with automatic exposure bracketing for dark scenes • Verification at a second, and when needed a third, frame rate to resolve frequencies above what the camera sees directly • FFT analysis with Apple's Accelerate framework and sub-Hz precision • Mains frequencies locked to their exact values, so 100 Hz gives an exact 1/50 PRIVACY Everything is measured on your iPhone. No images or video are ever stored or sent. Anonymous usage statistics (no personal data, no tracking) help us improve the measurements. Requires iPhone XS or later with iOS 17 or later.

LidarAC – RX is the handheld control and monitoring interface for the LidarAC system, built to extend Tilta Nucleus M and N setups for modern focus workflows. The idea is simple: bring tools normally found on high-end hand units to the Nano by using an iPhone. The system consists of two Modes. RX acts as the handheld interface and connects to the Nucleus Nano II via Bluetooth. TX runs on a second iPhone mounted on the camera (iPhone 12 Pro or newer) and provides LiDAR-based distance data. RX already enhances the Nucleus on its own with custom lens profiles, focus scaling, and marker tools. The full potential unlocks when paired with TX, adding real-time distance data directly into the focus workflow. Instead of relying on raw motor values, the system translates focus into usable distance context. Depth of field is calculated and visualized in real time, helping focus pullers make faster and more confident decisions, especially in dynamic scenes. Lens profiles allow precise mapping between LiDAR data and lens behavior, including aperture-based depth of field. Camera profiles handle CoC and sensor offset, ensuring accurate results in real-world setups. The focus scale is fully interactive and can switch between a flat mode and a focus wheel inspired mode. Values can either be mapped visually like on the lens for intuitive pulling, or displayed linearly to better understand spatial relationships within the scene. Marker and tracking tools make it easy to set, follow, and recall focus points. Features like spot measurement, 2D and 3D tracking, and a top-down LiDAR view provide clear spatial awareness on set. Haptic feedback increases as you approach a marker, giving intuitive confirmation without looking away. Key features: • Real-time LiDAR distance data for people, faces, and eyes • Spot distance measurement • 2D and 3D tracking points • Top-down LiDAR scene view • Custom lens profiles with depth of field visualization • Multiple focus scale modes (linear, lens matched, logarithmic) • Marker-based focus assistance with haptic feedback