Film Reciprocity - FilmRecip

See the real exposure time before you open the shutter. Meter a long exposure and pick your film — FilmRecip shows the reciprocity-corrected time and how much to add, using each manufacturer's own published correction model. FILM STOCKS • 40 black & white, color negative, and slide films from Ilford, Kentmere, Kodak, Fujifilm, Foma, CineStill, Rollei, Adox, and Bergger • 33 use official manufacturer datasheets, transcribed value by value • The rest are clearly labeled: manufacturer general guidance, or a community t^1.3 estimate where nothing is published THE CALCULATION • Enter the metered time in seconds, m:ss, or h:mm:ss • See both numbers a chart can give you — the total corrected exposure AND the time to add — so you never apply the wrong one • Stops of correction shown alongside, for filter and aperture adjustments • Every result is labeled with its confidence — official…