Latenta – Film Roll Logbook

Latenta is the logbook for people who still shoot film. Log every frame, never lose count, and always know where you are on the roll. 🎞️ THE ROLL, FRAME BY FRAME ✅ Frame counter always in view: one tap logs a frame ✅ A card for every shot: aperture, shutter speed, lens, subject and notes ✅ Bracketing ±1 logged with a single tap ✅ 25 film stocks built in, with their speed ✅ Half frame: the count doubles by itself ✅ Expired film: it suggests the EI to compensate with ✅ Full roll lifecycle: loaded, in progress, finished, developed, archived ☀️ BUILT-IN LIGHT METER ✅ Meter with your phone's light sensor, or with the Sunny 16 rule ✅ Suggested shutter/aperture pairs for the ISO of the roll you loaded ✅ Reciprocity failure correction for long exposures ✅ Tricky light guide: backlight, snow, indoors, night 🧪 DARKROOM ✅ Development timer with timed agitation and an audible cue ✅ Time chart by film and developer ✅ Development notes saved with the roll ✅ "Develop this roll" reminder if it sits in your bag too long 📊 STATS AND SPENDING ✅ How many rolls a year, which stocks you use most, which lens you favour ✅ Cost per roll and yearly average: you finally know what shooting costs you ✅ CSV export of everything, and share a roll with one tap 📍 WHERE YOU SHOT IT ✅ Optional geotag on a frame, stored on your phone only 🔒 EVERYTHING STAYS ON YOUR PHONE Rolls, frames, notes and locations are saved on your device only. No account, no sign-up, no servers of ours. It works fully offline, in the darkroom or up a mountain. 📺 FREE, WITH ADS Latenta is free thanks to discreet ads that never appear while you are logging a frame. Prefer quiet? Watch a short video and enjoy 24 hours with no ads. 🌍 12 LANGUAGES English, Italian, Spanish, French, German, Portuguese, Japanese, Chinese, Russian, Turkish, Arabic and Hindi.