# Lens Pattern

> Grid Lens Calibration Pattern

Canonical page: [https://chrome-stats.com/d/id6761390030](https://chrome-stats.com/d/id6761390030)

## Overview

- **ID:** `id6761390030`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Stage Precision GmbH
- **Category:** Utilities
- **Version:** 1.2
- **Last updated:** 2026-04-15
- **First published:** 2026-04-02
- **Size:** 1.14 MB
- **Data as of:** 2026-09-04
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/lens-pattern/id6761390030)
- **Website:** [https://stageprecision.com](https://stageprecision.com/)
- **Privacy policy:** [https://stageprecision.com](https://stageprecision.com/)

## Description

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

## Rankings

- #1,515,272 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6761390030)