Disappointed
This app gave me grossly incorrect exposure times for neutral density filters. It cost me numerous lost shots.
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📷 Photo & Video
Archived App (Last seen on 10 Jan 2026)
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
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About
Calculate correct exposure times for long exposures using ND filters. Select your base shutter speed and ND filters, and the app provides the adjusted exposure. Includes a countdown timer with notifications, even when not actively using the app.
✓Calculate exposure time with ND filters
✓Select base shutter speed
✓Select ND filters
✓Countdown timer for long exposures
✓Exposure completion notifications
✓Customizable filter bag
✓Customizable notifications
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What's New in ND Filter Pro Calculator
2.0
October 17, 2023
CUSTOM FILTER BAG Added the ability to manage your ND filters to match what's really in your camera bag. This allows you to add duplicate nd filters and stack them. You can also remove nd filters from the app that you do not physically own, making the interface much cleaner and easier to use. This feature requires a premium subscription. CUSTOM NOTIFICATIONS You now have the ability to customize the notification system for completed exposure countdowns by changing the audio alert and/or disabling the popup alert. This feature requires a premium subscription. FORCE LIGHT / DARK MODE Both free and premium users now have the ability to force light or dark mode for the app, regardless of your devices default settings.
MoreSubscription plans
Premium
Unlocks all features
$1.991 Month
User reviews
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FAQ
How does ND Filter Pro calculate exposure times?
ND Filter Pro calculates exposure times by taking your base shutter speed (without filters) and the specific ND filters you select. It then provides the adjusted exposure time needed for a correct exposure with those filters.
Does ND Filter Pro have ads?
Yes, ND Filter Pro contains advertisements. These ads can be removed by subscribing to the premium version of the app.
What are the premium features of ND Filter Pro?
Premium features include ND Filter Bag Customization, allowing you to specify only the filters you own, and Custom Exposure Notifications for audio and popup alerts. All ads are also removed with a premium subscription.
What is the cost of ND Filter Pro's premium subscription?
ND Filter Pro offers a premium subscription at $1.99 per month or $5.99 per year. This subscription unlocks all premium features and removes advertisements.
What devices is ND Filter Pro compatible with?
ND Filter Pro is compatible with iPhones and iPads, as indicated by its supported devices list.
How often is ND Filter Pro updated?
The latest version of ND Filter Pro is 2.0, and it was last updated on October 17, 2023. This suggests a relatively recent update frequency.
What is the age rating for ND Filter Pro?
ND Filter Pro has an age rating of 4+, making it suitable for a wide range of users.
Can ND Filter Pro notify me when an exposure is complete?
Yes, ND Filter Pro features a countdown timer for longer exposures. You will be notified when the countdown is complete, even if you are using another app.
