Neutral Density Calculator 1.1

The Neutral Density Calculator is a valuable tool for photographers seeking to accurately determine shutter speeds when utilizing neutral density (ND) filters. By simply inputting the type of filter being employed and the initial shutter speed, users can easily calculate the adjusted exposure time needed for optimal results.

This utility app offers convenience by providing an immediate calculation for the necessary shutter duration, and it features a built-in countdown timer for enhanced usability.

Key features include:

• User-friendly interface
• Countdown timer available for exposures exceeding 60 seconds (bulb mode)
• Screen dimming option during countdown
• Sound alerts at the completion of the timer
• Selection between neutral density or optical density units
• Compatibility with up to 20 stops of ND filters
• Base shutter speed range from 1/8000 to 60 seconds
• Display of fractional transmittance data associated with selected ND filters

For optimal use, follow these steps:

1. Determine the number of stops your ND filter represents (e.g., 3-stop, 4-stop, 10-stop).
2. Input your current base shutter speed (the speed before applying the ND filter).
3. The app calculates the final exposure time based on your inputs. By pressing the start button, you can synchronize with your DSLR or DSLM camera shutter, receiving an alert when it's time to release the shutter.

This app represents a thoughtful addition to any photographer's toolkit, making it easier to achieve correct exposure while using neutral density filters.