# Lumina Meter

> Lumina Meter (iPhone/iPad app by QIWEN LIN.)

- Source: https://appshunter.io/ios/app/lumina-meter/id6758922305 (this page in markdown: same URL + `.md`)
- Developer: [QIWEN LIN](https://appshunter.io/developer/1766393132)
- Category: Photo & Video
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 4 MB
- Languages: American English
- Released: 2026-02-12
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/lumina-meter/id6758922305/reviews.md

## What is Lumina Meter?

Lumina is a precision light meter designed for film photographers. Turn your iPhone into a professional-grade metering tool with real-time exposure analysis powered by Metal GPU rendering.

METERING MODES
- Spot: Precise single-point metering for critical exposure control
- Center-Weighted: Classic center-biased metering for balanced readings
- Matrix: Advanced 3D matrix metering with scene analysis, highlight protection, and film latitude awareness
- Distance: Real-time LiDAR depth measurement for zone focusing and hyperfocal calculations (Pro iPhones)

LIDAR DISTANCE
On Pro iPhones with LiDAR, Lumina measures real-time distance to your subject — right in the viewfinder. Invaluable for manual focus lenses, zone focusing, and nailing critical focus in the field.

ZONE SYSTEM
Real-time Ansel Adams Zone System display (Zone 0–X) lets you visualize exactly where your scene falls — from deep shadows to pure highlights.

EXPOSURE TOOLS
- Live histogram with luminance distribution
- False color overlay for instant exposure mapping
- Zebra stripes for highlight and shadow warnings
- Aperture priority, shutter priority, and manual modes
- ±3 EV compensation with third-stop precision

FILM STOCK PROFILES
Built-in presets for popular film stocks including Portra, Ektar, Tri-X, HP5+, Velvia, and more. Lumina adjusts metering behavior based on each film's dynamic range — slide films get aggressive highlight protection while negative films maximize shadow detail.

BUILT FOR FILM
- EV100 readout with 1/3 and 1/2 stop increments
- Full ISO, aperture, and shutter speed controls
- Calibration offset for matching your handheld meter
- Clean, dark interface designed for use in the field

PRIVACY FIRST
All camera and LiDAR data is processed entirely on-device. No analytics, no tracking, no accounts. Your data never leaves your iPhone.


## Version history (last 2 releases)

### 1.02 — 2026-03-02

- New distance metering mode with real-time LiDAR depth measurement
- Redesigned onboarding tutorial
- Updated UI throughout
- Black camera fallback for cleaner appearance

### 1.0 — 2026-02-12

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-19.*