Lens Pattern vs FreeD Tracker

Grid Professional Test Patterns for Camera Calibration Turn your iPad, iPhone, or Apple TV into a precision test pattern generator for camera and lens analysis. Lens Pattern displays pixel-accurate test charts directly on your device screen — no printed charts, no extra hardware. Perfect for camera calibration, lens quality testing, color grading verification, and production monitoring. INCLUDED TEST PATTERNS: Markers & Calibration • Grid Tags — AprilTag marker grid with adjustable tag size and start ID, ideal for camera calibration and spatial tracking Color & Exposure • SMPTE Bars — Standard SMPTE EG-1-1990 color bars • SMPTE 303M — HD color bars with PLUGE and Y-ramp zones • EBU Bars — EBU Tech 3325 color bars (75% and 100%) • ColorChecker — Classic 24-patch color reference chart • Color Scales — R/G/B/C/M/Y/W gradient ramps with percentage markers • Clipping — Shadow and highlight clipping test (1% steps) with stepped ramp • Grayscale — 21-step grayscale ramp with percentage labels Geometry & Focus • Crosshatch — Grid pattern for distortion analysis • Checkerboard — Black/white checkerboard for resolution testing • Caro — Diamond pattern (45° rotated checkerboard) • Dot Grid — Uniform dot array for distortion measurement • Siemens Star — Resolution target for sharpness evaluation • Focus Chart — Comprehensive focus and resolution target Timing & Animation • Motion Test — Moving bars for rolling shutter and motion blur analysis • Timecode — Real-time HH:MM:SS:FF display at 60fps • Flicker — Adjustable frequency flicker (0.5–30 Hz) KEY FEATURES: • Full-screen, pixel-perfect rendering on any screen size • Physical dimensions in millimeters displayed on iOS devices

FreeD Tracker turns your iPhone or iPad into a real-time FreeD D1 motion tracker for virtual production and broadcast graphics. The app measures position and orientation and sends standard FreeD UDP packets to your receiver - Unreal Engine, Vizrt, disguise, Screenberry, TouchDesigner, and other FreeD-compatible systems. Key features • Live FreeD D1 over local network (Wi‑Fi or Personal Hotspot) • Adjustable send rate, Camera ID, IP, and port • On-screen Phone (native) and UDP Out values • Set Zero origin, or Floor / Wall printed markers (25×25 cm with print control marks) • Rig Offset and Pivot to floor for mount / nodal alignment • Axis mapping (FreeD Native, Unreal, Unity, Custom) and UDP axis masks • Hold Position / Hold Rotation for practical moves • Orientation lock (Portrait or Landscape) and Screen Off mode • Optional LiDAR enhancement on supported Pro devices • World Map scenes to reload room geometry and origin between sessions • 3D Preview to visually check the tracked point • Diagnostics for UDP status, rates, and packet values • Test Mode for simulated motion without sensors Free & Pro Free includes full tracking tools with a limited (3 minutes) UDP send time per Start session. Pro unlocks unlimited UDP sessions and project save / load / export. Requirements A physical iPhone or iPad is required for production tracking. Good lighting and textured surroundings improve ARKit accuracy. Use a stable network path to your receiver whenever possible. Privacy Tracking stays on your device and local network. No cloud tracking server. See Privacy Policy in Settings. Terms of Use: https://www.tobeproduction.com/freed-tracker-app-terms Privacy Policy: https://www.tobeproduction.com/freed-tracker-app-privacypolicy