Tools, guides
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In-depth tutorials, free calculators, and carefully built presets — for film photographers and digital shooters who care about craft, not gimmicks.
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Calculators & references
Depth of Field
Aperture, focal length, and distance to exact near/far limits and hyperfocal distance.
Open calculator → CH 02 · FilmReciprocity Failure
Corrected exposure times for Portra, HP5, Velvia, Delta, Acros, and 10 more stocks.
Open calculator → CH 03 · ExposureND Filter
Enter a base exposure and ND stop value for the corrected long-exposure shutter speed.
Open calculator → CH 04 · SensorsCrop Factor
The full-frame equivalent of any focal length on APS-C, MFT, or medium format.
Open converter → CH 05 · MeteringSunny 16 Guide
Correct exposure for any outdoor light — for film shooters working without a meter.
Open guide → CH 06 · OutputPrint Size
The maximum print size your sensor’s megapixels support at 300, 150, and 72 dpi.
Open calculator →5 film-inspired Lightroom presets
Portra, HP5, Velvia, Cinestill 800T & more — built from real scans, not sliders pushed at random. Free forever.
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