# LEE Filters - ProGlass IRND — The official exposure guide. > Exposure calculator and timer for LEE ProGlass IRND filters. (iPhone/iPad app by LEE Filters.) - Source: https://appshunter.io/ios/app/lee-filters-proglass-irnd/id1232403966 (this page in markdown: same URL + `.md`) - Developer: [LEE Filters](https://appshunter.io/developer/882232671) - Category: Photo & Video, Utilities - Price: Free - Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed - Age rating: 4+ - Requires: iOS 9.0 · 25 MB - Languages: American English - Released: 2017-06-25 - Data updated: 2026-06-01 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/lee-filters-proglass-irnd/id1232403966/reviews.md ## What is LEE Filters? This is the official exposure guide for photographers using LEE Filters range of ProGlass IRND filters. Simply dial-in your metered shutter speed and then tap to calculate the adjusted exposure with any of the ProGlass IRND filters. Tap again to start a countdown timer - especially useful for very long exposures. Switch between the 2, 3, 4, 6, 10 and 15 stop filters, or if you prefer adjust the setting to show the ND values (0.6, 0.9, 1.2, 1.8, 3.0 and 4.5 ND). You can also combine two ProGlass filters for even more exposure flexibility. The app is designed for fluid and precise operation in the field, with a full range of shutter speeds in 1/3 stop increments and all the controls right under your thumb. ## Key features - Exposure calculation for IRND filters - Adjustable shutter speed increments - Countdown timer for long exposures - Switch between filter stops or ND values - Supports combining two filters ## Recent user reviews (1 of 1) All indexed reviews: https://appshunter.io/ios/app/lee-filters-proglass-irnd/id1232403966/reviews.md ### 5/5 — 2 into 1 *2020-12-01* Great app(s) Given the simplicity and ease of use of both the standard and IRND filter apps, I reckon a combination app which brings them both together would be ideal and efficient. I would imagine that those who have invested in the IRND filters probably started with the others and a generic app seems ideal. It doesn’t detract from my 5 stars which both apps would get for ease of use but would give it a 6 if combined. ## Frequently asked questions about LEE Filters ### What is the LEE Filters ProGlass IRND app? The LEE Filters ProGlass IRND app is an official exposure guide designed for photographers using LEE Filters' ProGlass IRND filters. It helps calculate exposure adjustments and includes a timer for long exposures. ### How does the LEE Filters ProGlass IRND app calculate exposure? You dial in your metered shutter speed, and the app calculates the adjusted exposure when using any of the ProGlass IRND filters. It supports various filter stops and ND values. ### Can the LEE Filters ProGlass IRND app be used for long exposures? Yes, the app includes a countdown timer that is especially useful for very long exposures. You can tap to start the timer after calculating your exposure. ### What filter stops does the LEE Filters ProGlass IRND app support? The app allows you to switch between 2, 3, 4, 6, 10, and 15 stop filters. It also supports adjusting settings to show the corresponding ND values. ### Does the LEE Filters ProGlass IRND app have ads? No, the LEE Filters ProGlass IRND app does not contain advertisements. It is a free application with no ads. ### What devices is the LEE Filters ProGlass IRND app compatible with? The LEE Filters ProGlass IRND app is compatible with iPhone, iPad, and iPod devices. It is rated for ages 4 and up. ### How often is the LEE Filters ProGlass IRND app updated? The LEE Filters ProGlass IRND app was last updated on October 23, 2017, with version 1.2. It was initially released on June 25, 2017. ### Can I combine filters using the LEE Filters ProGlass IRND app? Yes, the app is designed to allow you to combine two ProGlass filters for even greater exposure flexibility, providing more precise control over your shots. ## Version history (last 3 releases) ### 1.2 — 2017-10-23 This app has been updated by Apple to display the Apple Watch app icon. You can now combine two ProGlass filters and use the app to work out the total exposure time. Select any ProGlass filter, hit the + button and add an additional 2, 3 or 4 stop ProGlass for up to 19 stops of exposure adjustment! Minor adjustments for iOS 11 and iPhone X. ### 1.1 — 2017-06-27 The menu now defaults to showing the stop value of ProGlass filters rather than ND value. You can change this on the settings screen. ### 1.0 — 2017-06-25 No release notes. ## Apps similar to LEE Filters | App | Rating | Price | Category | | --- | --- | --- | --- | | [Viewfinder Preview](https://appshunter.io/ios/app/viewfinder-preview/id1216484605) | 4.7 (259) | $4.99 | Photo & Video | | [VIEWFINDR](https://appshunter.io/ios/app/viewfindr/id1589502778) | 3.8 (4) | Free | Photo & Video | | [ASIAIR](https://appshunter.io/ios/app/asiair/id1367782034) | 3.9 (228) | Free | Photo & Video | | [Cascable Studio: Tether & More](https://appshunter.io/ios/app/cascable-studio-tether-and-more/id974193500) | 4.0 (361) | Free | Photo & Video | | [Saal Digital](https://appshunter.io/ios/app/saal-digital/id1481631197) | 4.4 (239) | Free | Photo & Video | | [Light Meter Ultra](https://appshunter.io/ios/app/light-meter-ultra/id1558108173) | 4.5 (78) | Free | Photo & Video | ## More apps by LEE Filters - [LEE Swatch Book - Official](https://appshunter.io/ios/app/lee-swatch-book-official/id882232668) - [LEE Diffusion Comparator](https://appshunter.io/ios/app/lee-diffusion-comparator/id1050979715) - [LEE Filters - Stopper Exposure](https://appshunter.io/ios/app/lee-filters-stopper-exposure/id1105022698) All apps by LEE Filters: https://appshunter.io/developer/882232671 ## Related topics [lee diffusion comparator](https://appshunter.io/ios/topics/lee-diffusion-comparator) --- *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 2026-06-01.*