Lightmatic logo


Digital lightmeter on your iOS device.

Lightmatic main screen

Precise and easy to use

The interface, simple and clear to any photographer, makes Lightmatic very easy to use. The algorithms used in the application provide high measurement accuracy comparable to exposure meters built into the camera.

Pinhole mode

Pinhole mode allows you to measure exposure for pinhole cameras with f-number up to f/999 and exposure times up to 1 day. In-app timer allows you to stay in one application. Lightmatic takes into account reciprocity failure and corrects long exposure times automatically.

Lightmatic pinhole screen
Lightmatic film profile screen

Camera and film profiles

In pinhole mode you can create as many camera and film profiles as you want. Among many other characteristics film profile allows you to create custom reciprocity curves.


You can download latest version of Lightmatic on the Apple App Store.

Download on the App Store

Frequently Asked Questions

What is lightmeter?

A lightmeter is a device used to measure the amount of light. In photography, a light meter is used to determining the correct exposure. Exposure in all types of cameras can be controlled by three values: ISO, f-number and shutter speed. With two fixed values the lightmeter measures the third.


If you have any questions please check section above. If you did not find the answer to your question or want to leave feedback do not hesitate to write to me at