The most complete ND filter calculator for photographers, drone pilots & videographers – completely ad-free. 7 Calculation Modes – fully included, no limitations ND Filter Expert Pro gives you every calculation mode without restrictions. No ads, no locked features – the complete tool, exactly when you need it. – Simple: Quick calculator – base shutter speed + ND filter = new exposure time – Expert: Combine aperture, ISO and up to 5 filters simultaneously – Bulb Mode: Enter long exposures in hours, minutes and seconds – Reverse ND: Set your desired shutter speed and find the right filter – Light / EV: Calculate the required filter based on aperture and ISO – Drone Mode: Frame-rate based calculations for drone pilots (180° rule) – Vario ND: Calculations for variable / adjustable ND filters Built-in Exposure Timer Tap your result to start the exposure timer directly in the app – no stopwatch needed. Runs as a background service with alarm and vibration when done. Tones and vibration patterns fully configurable. Unlimited Favorites & Custom Filters Save, search, sort and organize setups per calculator mode – without limits. Create and manage custom ND filter values for your specific gear. Learn as you shoot Full tutorial, step-by-step guides, and an FAQ with 11 real-world questions on neutral density filters. Accessory recommendations included. All Pro features included – 7 specialized calculator modes – fully unlocked – Stack up to 5 ND filters simultaneously – Dedicated Drone Mode with FPS-based calculation – Built-in exposure timer with background service – Unlimited favorites per mode – Create custom ND filter values – Full tutorial, step-by-step guides and FAQ – Night mode / dark theme – Screen lock during exposure – 27 languages supported – Completely ad-free – No unnecessary permissions – privacy first Questions or feedback? support@nd-filter-expert.com

ND Filter Pro DSLR & Drone

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