Calculate precise exposure times for long-exposure photography with Neutral Density filters. Features a countdown timer for exposures over 10 seconds and supports up to 24 stops of ND filtration.
Long Exposure Calculator by Junel Corales




208+ iOS apps curated and reviewed
Finding the right exposure calculator app can be overwhelming with so many options. We've analyzed 208+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.




Calculate precise exposure times for long-exposure photography with Neutral Density filters. Features a countdown timer for exposures over 10 seconds and supports up to 24 stops of ND filtration.



This app acts as a portable light meter for photographers. It helps you understand correct photography settings and experiment with shutter speed, aperture, and ISO in real time. Save snapshots with parameters and geolocation, and measure color temperature.






This tool simplifies exposure time calculations for 2D film radiography professionals. It supports various X-ray sources and isotopes, offering both digital input and a slide ruler for optimal image clarity and efficiency.


This app provides a minimalist light meter to help users determine ideal exposure settings for photography. It visually demonstrates the relationship between ISO, aperture, and shutter speed, making it intuitive for learning photographers.


This powerful light meter app offers a clean, intuitive interface optimized for one-handed use. It displays multiple aperture and shutter speed combinations simultaneously, aiding quick setting selection. Suitable for beginners and experienced photographers alike, it includes advanced features like spot metering, reciprocity failure compensation, and pinhole mode.


This app provides essential calculators for landscape photographers to determine exposure settings. It includes tools for ND filters, handheld shots, multiple exposures, star photography, and nightscapes, with features like a built-in timer and equipment organization.


This app helps photographers determine the correct shutter speed by calculating exposure values based on lighting conditions, f-stop, and ISO. It provides more accurate results than traditional tables, accounting for all f-stop and ISO values.


This app functions as a standalone reflective light meter or pairs with hardware for professional flash and color temperature measurements. It offers various modes for photography and videography, storing measurements with notes and location.


This free application functions as an exposure meter for photography. It automatically measures EV values and displays aperture and shutter speed combinations. Users can also manually adjust EV to preview brightness changes on their screen.




This official guide helps photographers using specific long exposure filters accurately calculate required exposures. It features a flexible timer for extended shutter speeds and provides access to user guides and web resources.


This app provides precise light metering for film photography, eliminating the need for external hardware. It offers various metering modes and customizable profiles to ensure perfect exposures for manual cameras. Advanced features like reciprocity failure correction are available with a PRO plan.


This app helps photographers and filmmakers calculate camera exposure, estimate depth-of-field, and function as a light meter using the phone's camera. It offers an intuitive interface for adjusting settings like ISO, shutter speed, and aperture to achieve optimal exposure.


Calculate precise exposure times for GE Structurix Films. Supports both Isotopes and X-Ray sources for accurate imaging.


This utility helps photographers determine precise exposure times when using ND filters. It also functions as a timer and trigger for compatible wireless remote controls.


Calculate precise long exposure times with ND filter compensation and depth of field parameters. Supports various sensor sizes and measurement units, with a built-in timer for extended shots. Offers light and dark modes for iOS devices.


This app provides advanced tools to help photographers of all levels master camera settings and create stunning images. It offers features like depth of field calculators, light metering, and composition assistance, supporting both digital and film cameras.


This app simplifies camera exposure settings using the Sunny 16 rule and beyond. It helps photographers quickly determine aperture and shutter speed for various lighting conditions and equipment, offering precise control over exposure compensation and stop increments.


This app provides precise light measurements in lux and foot candles, along with real-time color temperature readings. It offers shooting value recommendations and allows manual adjustment of camera settings for photographers, plant enthusiasts, and workspace optimization.

