Decent basic calculator
Simple calculator that does what it says: calculates new exposure times. Unfortunately only goes to 10 stops, so if you have darker filters (like I do) it is of limited use.
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This tool helps photographers calculate neutral density filter effects on their camera's exposure. It includes a countdown timer for long exposures, simplifying the process of achieving desired results.
✓Neutral density filter calculation
✓Exposure compensation
✓Long exposure timer
✓Countdown for shutter speeds > 3 seconds
✓Simple interface
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What's New in ND Filter Calc
1.4.0
November 2, 2025
Added "Custom" to ND filter selection. When selected, user can add a custom f-stop from 0.1 to 20. This can be useful when stacking filters.
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FAQ
What is ND Filter Calc used for?
ND Filter Calc is a tool for photographers to calculate the correct exposure when using neutral density (ND) filters. It helps determine how much to adjust shutter speed or aperture based on the filter's strength.
Does ND Filter Calc have a timer?
Yes, ND Filter Calc includes a countdown timer specifically for shutter speeds of 3 seconds and above. This feature assists photographers during long exposure shots.
What devices is ND Filter Calc available on?
ND Filter Calc is available on iPhone, iPad, and iPod touch devices. It is designed for Apple's mobile ecosystem.
How often is ND Filter Calc updated?
The latest version, 1.4.0, was released on November 2, 2025. While specific update frequency isn't detailed, this indicates ongoing development and support.
Is ND Filter Calc free to use?
Yes, ND Filter Calc is completely free to download and use. There are no costs associated with its basic functionality.
What is the age rating for ND Filter Calc?
ND Filter Calc has an age rating of 4+. This suggests it is suitable for users of all ages, with no mature content.
Does ND Filter Calc have ads?
No, ND Filter Calc does not contain advertisements. Users can enjoy the application without interruptions.
When was ND Filter Calc first released?
ND Filter Calc was first released on May 22, 2023. This makes it a relatively recent addition to photography tools.
