GlassMeter: Film Light Meter
Spot & Zone Exposure for Film
About
Simulate film development and exposure before taking a shot. This app analyzes light, film stocks, and camera settings to predict the final image. It offers detailed control over exposure, film characteristics, and lens effects.
What's New in GlassMeter
1.0.0
October 27, 2026
FAQ
What is GlassMeter?
GlassMeter is a mobile application designed to simulate the process of film photography. It allows users to meter light, select film stocks, and adjust camera settings to preview the final image before taking a photograph.
How does GlassMeter simulate film stocks?
GlassMeter models over 30 film stocks based on manufacturer datasheets, replicating their unique characteristic curves, push/pull effects, reciprocity failure, and halation. This provides a realistic preview of how each film will render an image.
Can GlassMeter help with the Zone System?
Yes, GlassMeter supports a multi-spot Zone workflow. You can pin a shadow and a highlight, and the app will place the exposure between them, allowing you to assign readings to specific zones like III, IV, V, or VI.
Does GlassMeter have ads?
No, GlassMeter does not contain advertisements. It is a completely free application with no ads or in-app purchases.
What devices does GlassMeter support?
GlassMeter is currently supported on iPhones. It utilizes features like the front camera for incident metering and the LiDAR rangefinder on compatible iPhone models.
How often is GlassMeter updated?
GlassMeter was last updated on October 27, 2026, with version 1.0.0. As an independent app, update frequency may vary based on developer releases.
Is GlassMeter private?
Yes, GlassMeter is designed with privacy in mind. It runs entirely on your iPhone, collects no data, and does not require an account or analytics. Your photos and location access are optional.
What is the rating for GlassMeter?
GlassMeter has a perfect rating of 5.0 stars based on 2 user ratings, indicating a highly positive user reception.