LightScope: Light & EV Meter

LightScope: Light & EV Meter

Lux, EV & Exposure Meter

0 ratings
12 reviews
$2.99 Free

Lowest price: $1.99 4 years ago (-%)


Price history


Details

  • Released
  • Updated
  • June 30, 2021
  • August 12, 2026

Features

LightScope: Light & EV Meter screenshot #1 for iPhone
LightScope: Light & EV Meter screenshot #2 for iPhone
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LightScope: Light & EV Meter screenshot #9 for iPhone
LightScope: Light & EV Meter screenshot #10 for iPhone
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About

This app uses your device's camera to measure and analyze various light properties, including illuminance, luminous intensity, and color temperature. It offers real-time histograms, contrast ratio, and noise measurements, with options for image capture and history tracking.

Illuminance (lux) measurement
Luminous intensity (candela) calculation
Color temperature (K) analysis
Real-time histogram
Contrast ratio measurement
Image capture and storage
Measurement history and trends
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What's New in LightScope

3.0.1

August 12, 2026

Improved the accuracy and reliability of measurement features. • Fixed the calibration wizard's 3-second measurement never completing • Improved spot metering — tap the screen and lux, exposure (EV) and candela are re-measured at that point • Measurement lock now freezes the preview as well as the readings, and saved photos match the locked moment • Fixed the Pro screen sometimes failing to load pricing, and added a retry button

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User reviews

영상 촬영에 좋은 앱

정확한 색온도를 알아야 할 때 좋은 앱입니다.
우리나라 분이 개발하신 것 같아 구입했습니다.

2.0 좋아졌군요.

이전 버전보다 기능도 많아지고, 디자인도 많이 좋아졌군요.
잘쓸게요

测量不准

测试了十几款亮度测试软件;这个是收费且最不准确的,同一个光源,安卓和苹果的不同软件,其他测量都是300到600lux,这个测试只有50到60lux,建议避坑。

Medición incorrecta.

Con ninguna de las dos cámaras hace una medición correcta de la luminosidad en un iPhone 12. Con el ajuste máximo de calibración (50) los valores son la mitad de lo que miden otras apps. En un entorno donde hay unos 250 luxes marca unos 130. No me sirve para nada.

×

あまりにもひどすぎる。絶対ダウンロードしない方がいい。

Developer apps

FAQ

What is Light Scope used for?

Light Scope is a professional tool that uses your device's camera sensor to measure and analyze various aspects of light, including illuminance, luminous intensity, and color temperature. It helps users understand and quantify light conditions for photography, videography, and design.

How does Light Scope measure illuminance?

Light Scope calculates illuminance in lux by analyzing EXIF data from your device's camera sensor. It uses a specific formula involving the F-number, exposure time, ISO, and a calibration factor for accuracy.

Can Light Scope measure color temperature?

Yes, Light Scope can precisely measure color temperature in Kelvin (K) within a range of 1500K to 15000K. It achieves this by converting RGB values to the XYZ color space using McCamy's formula.

Does Light Scope support image capture?

Yes, Light Scope allows you to capture images at the time of measurement and stores them along with the measurement data. These captured images can be viewed in full-screen, zoomed, panned, rotated, and saved to your device's photo library.

How often is Light Scope updated?

The latest version of Light Scope is 2.0, and it was last updated on May 13, 2025. This indicates a commitment to ongoing development and improvements.

What devices is Light Scope available on?

Light Scope is currently supported on iPhones. It is designed to leverage the camera sensor capabilities of these devices.

What is the price of Light Scope?

Light Scope is a paid application and costs $2.99. This one-time purchase grants you access to all its professional light measurement and analysis features.

Does Light Scope have ads?

No, Light Scope does not contain advertisements. As a paid application, it provides an uninterrupted user experience focused solely on its measurement and analysis functionalities.