# Photography Timer — Long exposure, NDfilter & film

> Long exposure timer and calculator for ND filters and film reciprocity. (iPhone/iPad app by SangWook Han.)

- Source: https://appshunter.io/ios/app/photography-timer/id6787153428 (this page in markdown: same URL + `.md`)
- Developer: [SangWook Han](https://appshunter.io/developer/6787153430)
- Category: Photo & Video, Utilities
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 17.0 · 6 MB
- Languages: American English, Korean
- Released: 2026-07-09
- Data updated: 2026-07-30
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/photography-timer/id6787153428/reviews.md

## What is Photography Timer?

Photography Timer is a practical timer for long-exposure photography.

It helps you calculate how much longer your exposure becomes when using ND filters, and also check reciprocity failure correction times when shooting long exposures on film.

Key features:
• Long-exposure photography timer
• ND filter exposure time calculation
• Film reciprocity failure correction
• Multi-camera timers
• Start timers from calculated times or custom target times
• Check active and completed timers during a shoot
• 34 film presets supported: ILFORD/HARMAN, Kodak, Fujifilm, FOMA BOHEMIA, Rollei, ADOX
• Custom film profiles for saving your own correction data

Film data note: based on official manufacturer materials, technical documents, product PDFs, support pages, and other reviewable sources.

Photography Timer is made to reduce exposure calculation work in the field, so you can focus on the actual shooting time.

I built this app because I needed it for my own photography. It started from my workflow with tripods, ND filters, film cameras, and long exposure times. If your photography workflow is different, I would be happy to hear what would make the app more useful.

## Key features

- Long-exposure photography timer
- ND filter exposure time calculation
- Film reciprocity failure correction
- Multi-camera timers
- 34 film presets
- Custom film profiles


## Frequently asked questions about Photography Timer

### What is Photography Timer used for?

Photography Timer is designed to help photographers with long-exposure shots. It calculates exposure times when using ND filters and corrects for film reciprocity failure, simplifying the process in the field.

### Does Photography Timer have ads?

No, Photography Timer is ad-free, allowing for an uninterrupted photography experience without any advertisements.

### What film types does Photography Timer support?

Photography Timer supports 34 film presets from manufacturers like ILFORD/HARMAN, Kodak, and Fujifilm. It also allows users to create custom film profiles for their specific needs.

### Can Photography Timer be used with multiple cameras?

Yes, Photography Timer features multi-camera timers, enabling you to manage exposures for different cameras simultaneously during a shoot.

### How accurate is the film data in Photography Timer?

The film data is based on official manufacturer materials, technical documents, and product PDFs, aiming for accuracy in reciprocity failure corrections.

### What devices does Photography Timer support?

Photography Timer is currently supported on iPhones.

### How often is Photography Timer updated?

The latest version, 0.8.0, was released on July 21, 2026, indicating recent development activity. Updates typically occur to improve features and add support.

### What is the age rating for Photography Timer?

Photography Timer has an age rating of 4+, making it suitable for a wide range of users.

## Version history (last 2 releases)

### 0.8.0 — 2026-07-21

Photography Timer 0.8.0

• Stack up to four standard filters for exposure calculations.
• Added accurate fractional-stop support for ND100, ND200, and ND100k filters.
• Improved the reliability of saved data, timer restoration, and overall app behavior.

### 0.7.4 — 2026-07-09

No release notes.

## Related topics

[film reciprocity](https://appshunter.io/ios/topics/film-reciprocity)

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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 2026-07-30.*