Free professional-grade tools for exposure, optics, composition, and more. No sign-up required.
Calculate correct exposure times when using neutral density filters for long exposure photography.
● ExposureFind equivalent camera settings while maintaining the same exposure value.
● ExposureMaster exposure with the classic Sunny 16 rule and exposure value calculations.
● ExposureCalculate the hyperfocal distance and depth of field for maximum sharpness.
● OpticsDetermine the field of view for any focal length and sensor combination.
● OpticsConvert focal lengths and aperture equivalences across sensor formats.
● OpticsDetermine the number of shots needed for perfect focus stacking in macro and landscape.
● MacroCalculate optimal print sizes and resolution requirements for sharp prints.
● OutputCalculate crop dimensions for social media and printing while maintaining aspect ratio.
● CompositionCalculate maximum shutter speed for astrophotography to avoid star trails.
● AstroPlan interval, duration, and final video length for time-lapse sequences.
● VideoFind golden hour, blue hour, and magic lighting times for any location.
● LightingEstimate how many photos or video you can fit on your memory cards.
● StorageCalculate optimal flash power, distance, and aperture for perfect flash exposure.
● FlashCheck your camera's shutter actuations from EXIF data. Essential for buying used cameras.
● Camera Health