# Shutter Button - A Light Meter — Shutter Button - Light meter

> Bluetooth camera remote with exposure meter and LiDAR rangefinder. (iPhone/iPad app by SEUNGHYUK CHOI.)

- Source: https://appshunter.io/ios/app/shutter-button-a-light-meter/id6742120759 (this page in markdown: same URL + `.md`)
- Developer: [SEUNGHYUK CHOI](https://appshunter.io/developer/1796943412)
- Category: Photo & Video, Utilities
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.6 · 4 MB
- Languages: Canadian English
- Released: 2025-02-25
- Data updated: 2026-09-02
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/shutter-button-a-light-meter/id6742120759/reviews.md

## What is Shutter Button?

Film Oddments
Bluetooth Camera Remote with Exposure Meter and Rangefinder

This app serves as a Bluetooth-enabled camera remote, incorporating both an exposure meter and a rangefinder.

Compatible with film cameras and all cameras equipped with a mechanical shutter release, the app allows remote shutter control via Bluetooth.

Exposure Meter (AV, TV, M Modes)
Supports exposure compensation in 1/3-stop increments and displays exposure values from -5 to +5 EV.

LiDAR Rangefinder
Accurately measures distances using your iPhone’s built-in LiDAR sensor.
*Requires a device equipped with a LiDAR sensor.

Key Features:
- Exposure Meter: AV, TV, and M modes, exposure compensation, integrated remote shutter control
- Rangefinder: Distance measurement using LiDAR sensor

Selectable exposure modes and metering methods include:
- iPhone AE Metering
- Average Metering
- Framing Area Average Metering
- Spot Metering

Zoom Function:
- Supports focal lengths from 13mm to 550mm

Framelines:
- Includes framelines for 135 full-frame and selected medium-format sizes

Improved dials and touch feedback:
- Added haptic feedback (vibration)

Frame your shot and preview composition accurately.


Additional Features:

Shutter Trigger: Capture photos instantly with a single button press

Bulb Mode: Hold the shutter open for long-exposure photography

Timer Mode: Hands-free shooting with adjustable timer settings

Timed Bulb Mode: Automatic control of long exposures with preset timers

Shutter Depth Adjustment: Precisely control the shutter release depth

Log Feature Added
- A new “Instax Style Log” toggle is available under Exposure Meter → Settings.
- Press and hold the shutter button on the Exposure Meter screen for at least 1 second to save the current metadata to the native Photos app.
- You can enter custom text under Exposure Meter → Settings → Value Settings, which will be recorded with each log.
*Swipe up on the Exposure Meter screen to open Exposure Meter → Settings.

Demo Video: https://youtu.be/dvUyKOs7xEY
LiDAE Demo Video: https://www.youtube.com/shorts/azueoZaa90M

## Key features

- Bluetooth camera remote
- Exposure meter (AV, TV, M modes)
- LiDAR rangefinder
- Exposure compensation
- Framelines for various formats
- Bulb and timer modes
- Instax Style Log feature

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remote Release Activation | $10.99 | one-time |
| Profile, Additional Features | $3.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/shutter-button-a-light-meter/id6742120759/reviews.md

### 5/5 — Great apps for photographers

*2025-03-02*

Comprehensible, handy and intuitive app when taking photos with film cameras 👍👍👍

## Frequently asked questions about Shutter Button

### What is Shutter Button?

Shutter Button is a mobile application that acts as a Bluetooth-enabled camera remote. It also includes an exposure meter and a rangefinder, providing photographers with tools for precise control and measurement.

### Does Shutter Button have ads?

No, Shutter Button does not contain advertisements. The app is completely ad-free, allowing for an uninterrupted user experience.

### What devices is Shutter Button compatible with?

Shutter Button is currently supported on iPhones. It requires a device equipped with a LiDAR sensor for its rangefinder functionality.

### How does the exposure meter in Shutter Button work?

The exposure meter supports AV, TV, and M modes, offering exposure compensation in 1/3-stop increments. It displays exposure values from -5 to +5 EV and includes selectable metering methods like average and spot metering.

### What is the LiDAR rangefinder feature in Shutter Button?

The LiDAR rangefinder utilizes your iPhone's built-in LiDAR sensor to accurately measure distances. This feature is crucial for precise focusing, especially when working with manual focus cameras.

### Can I use Shutter Button for long-exposure photography?

Yes, Shutter Button includes a Bulb Mode that allows you to hold the shutter open for long-exposure photography. There is also a Timed Bulb Mode for automatic control of long exposures with preset timers.

### How often is Shutter Button updated?

The latest version of Shutter Button was released on June 1, 2026. Updates typically include new features, bug fixes, and performance improvements to enhance the user experience.

### What is the age rating for Shutter Button?

Shutter Button has an age rating of 4+. This indicates that the content is generally suitable for all ages, with no mature themes or potentially objectionable material.

## Version history (last 5 releases)

### 5.5 — 2026-08-25

• Depth of Field display: the zone focus scale on the left of the Simple mode preview is now always visible and shows the in-focus range for your current aperture, lens focal length and format as a yellow band. Turn the aperture dial and the band widens or narrows live
• Drag the needle to set focus distance: with the distance meter off, drag the dashed needle to set your focus distance. Double-tap to snap to the hyperfocal distance
• Works with the distance meter: with it on, the solid needle marks the measured distance and the in-focus range at that distance is shown alongside
• Can be turned off under Settings > DISPLAY > Zone Focus Scale

### 5.4 — 2026-08-16

What's New in 5.4
• Simple Mode: a new film-camera-style light meter screen (Settings > Meter Style)
• Film reciprocity correction: select your film and long exposures are corrected automatically — applied to bulb release and logs, with a correction curve chart
• New frame lines: 6x8, 6x12, and 6x17 panoramic
• New Shutter Speed Preview; improved Exposure and Depth previews
• Zone-focus distance scale in Simple Mode
• Labels now rotate to match device orientation when shooting sideways
• Five default color filters and smoother dial inertia
• Release notes can now be revisited anytime from Settings

About film simulations & LUTs: film features now live in '36exp', our dedicated film camera app rebuilt with many more features. This keeps the light meter lightweight and focused on shooting — thank you for understanding.

### 5.3 — 2026-06-01

bug fix

### 5.2 — 2026-02-13

Apple Log Support: Enable Apple Log gamma for accurate colors when applying LUTs.
Custom LUT Import: Import your own .cube LUT files for personalized color grading.
LUT Intensity Control: Fine-tune LUT intensity from 0% to 100%.
Just A Log: Save logs as original photos without the Instax frame.
High Res Log: Capture logs at the device's maximum resolution (up to 48MP).

### 5.1 — 2026-02-11

8-Bit Pixel Filter Added
Stability Improvements
Auto Album Sorting for Logs

## Apps similar to Shutter Button

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| --- | --- | --- | --- |
| [Paddie: Frame Daily Moments](https://appshunter.io/ios/app/paddie-frame-daily-moments/id6758503800) | — | Free | Photo & Video |
| [출사지도](https://appshunter.io/ios/app/id6759699485) | — | Free | Photo & Video |
| [Pellica: Analog Film Log](https://appshunter.io/ios/app/pellica-analog-film-log/id6756510462) | 5.0 (3) | Free | Photo & Video |
| [Film Exposure Meter](https://appshunter.io/ios/app/film-exposure-meter/id6748942481) | — | Free | Photo & Video |
| [illumeter](https://appshunter.io/ios/app/illumeter/id6474086258) | 4.6 (11) | Free | Photo & Video |
| [GudoCam: AI Composition Camera](https://appshunter.io/ios/app/gudocam-ai-composition-camera/id6759212077) | — | Free | Photo & Video |

## More apps by SEUNGHYUK CHOI

- [How's My Boss](https://appshunter.io/ios/app/hows-my-boss/id6764928592)
- [36exp](https://appshunter.io/ios/app/36exp/id6788681598)

All apps by SEUNGHYUK CHOI: https://appshunter.io/developer/1796943412

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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 2026-09-02.*