# Exposure Calculator — Long Exposure Calculator

> Long Exposure Calculator (iPhone/iPad app by Ashoke Mediratta.)

- Source: https://appshunter.io/ios/app/exposure-calculator/id6670614096 (this page in markdown: same URL + `.md`)
- Developer: [Ashoke Mediratta](https://appshunter.io/developer/1577092433)
- Category: Photo & Video, Utilities
- Price: $1.99
- Age rating: 4+
- Requires: iOS 26.0 · 0 MB
- Languages: American English
- Released: 2024-09-08
- Data updated: 2026-09-06
- User reviews in markdown: https://appshunter.io/ios/app/exposure-calculator/id6670614096/reviews.md

## What is Exposure Calculator?

Exposure Calculator is an app that I developed to calculate the shutter time required for taking long exposures when using an ND filter.

To use:
- First expose your scene as you would normally, without an ND filter mounted
- Note the metered shutter speed required for current exposure
- Select the ND filter density that you would like to use
- The app will calculate the long exposure time to use when the ND filter is mounted
- For exposures longer than 4 seconds the timer can help you keep track of your exposure time

If you are using a dark ND filter, such as an ND1000, your camera will not be able to focus when you release the shutter. To get around this, first focus on the scene without the ND filter, then switch your camera into manual focus, then mount the ND filter. Your camera will use the current set focus and not try to refocus.


## Version history (last 5 releases)

### 4.21 — 2026-09-05

UI updates

### 4.11 — 2026-07-28

UI Updates

### 4.10 — 2026-07-04

Added Dark Mode

### 4.04 — 2026-04-29

Minor UI and code updates

### 4.03 — 2026-04-22

UI and other code updates

## Apps similar to Exposure Calculator

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Smart Photography](https://appshunter.io/ios/app/smart-photography/id476510478) | 2.0 (5) | Free | Photo & Video |
| [Long Exposure Buddy](https://appshunter.io/ios/app/long-exposure-buddy/id1387466941) | — | Free | Photo & Video |
| [Mango Exposure: The Calculator](https://appshunter.io/ios/app/mango-exposure-the-calculator/id1487020105) | 5.0 (1) | Free | Photo & Video |
| [ColorDev Timer](https://appshunter.io/ios/app/colordev-timer/id6744559427) | — | Free | Photo & Video |
| [ND Filters](https://appshunter.io/ios/app/nd-filters/id1449381658) | — | $0.99 | Photo & Video |
| [Neutral Density Calculator](https://appshunter.io/ios/app/neutral-density-calculator/id1343590260) | 3.4 (5) | $1.99 | Photo & Video |

## More apps by Ashoke Mediratta

- [Pi-hole Dashboard](https://appshunter.io/ios/app/pi-hole-dashboard/id1671363555)
- [Colour Creator](https://appshunter.io/ios/app/colour-creator/id6444067665)
- [Dashboard for LibreNMS](https://appshunter.io/ios/app/dashboard-for-librenms/id6463488112)
- [Ancient Games](https://appshunter.io/ios/app/ancient-games/id6474431915)
- [Dashboard for Pi-hole](https://appshunter.io/ios/app/dashboard-for-pi-hole/id6475874481)

All apps by Ashoke Mediratta: https://appshunter.io/developer/1577092433

## Related topics

[exposure calculator](https://appshunter.io/ios/topics/exposure-calculator) · [exposure studio](https://appshunter.io/ios/topics/exposure-studio) · [long exposure buddy](https://appshunter.io/ios/topics/long-exposure-buddy) · [multiple exposure](https://appshunter.io/ios/topics/multiple-exposure) · [exposure tracker](https://appshunter.io/ios/topics/exposure-tracker) · [camera exposure calculator](https://appshunter.io/ios/topics/camera-exposure-calculator) · [exposure ed](https://appshunter.io/ios/topics/exposure-ed) · [long exposure calculator](https://appshunter.io/ios/topics/long-exposure-calculator)

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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 2026-09-06.*