Lens Pattern
Grid Lens Calibration Pattern
Free
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
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
disable Screensaver during display pattern
The developer, Stage Precision GmbH, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Stage Precision GmbH
- Size
- 1.2 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.6 or later.
- iPhone
Requires iOS 18.6 or later. - iPad
Requires iPadOS 18.6 or later. - Mac
Requires macOS 15.6 or later. - Apple Vision
Requires visionOS 2.6 or later. - Apple TV
Requires tvOS 18.6 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © Stageprecision GmbH