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NDDROID is a ND Filter Calculator
NDDROID is a ND Filter Calculator with detailed Calculation Tables and an interactive ND Calculator.
Simply calculate shutterspeeds of cameras (bulb mode) when using ND filters.
With neutral density filters you can stop down your current shutterspeed.
This ND calculator will help you to setup your camera and understand the different wordings of ND filters and it's affection.
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