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Photography

Exposure triangle, depth of field, ND filters and lens tools.

8 calculators

Depth of Field Calculator

Calculate near/far limits, DOF, and hyperfocal distance for any camera and lens.

Calculate equivalent exposures, EV, and reciprocity failures.

Calculate exposure adjustments needed when using ND filters.

Calculate maximum print size and pixel dimensions from megapixels.

Calculate flash distance, aperture, or guide number using the GN formula.

Calculate crop factor, 35mm equivalent focal length, and equivalent aperture.

Calculate approximate golden hour and blue hour times based on latitude.

Plan SD card, hard drive, and backup storage needs for a shoot or trip.