Darkroom tools

The Lab

Development calculators, film timers, roll log, and reference library — everything for the analog workflow.

Getting Started

Five guided paths from your first roll of film to advanced darkroom techniques. Checklists, equipment lists, and embedded tool links.

Calculate working solutions from stock concentrate. Dilution ratios, unit conversion, batch mode, and saved history.

Temperature-adjusted development times with multi-stage countdown. Stand and semi-stand modes with agitation alerts.

Bellows factor, filter factor, and reciprocity failure corrections for large format and long exposures.

Coming soon

Film + developer combinations with times, temperatures, and agitation notes. Build your own recipe book.

Film stocks, developers, chemicals, cameras, and paper. Searchable catalogue with safety data, compatibility info, and favourites.