f/oss vs Video Speed Shift

f/oss is a free light meter for film photography, rebuilt from the ground up as a fully native app. Point the spot-metering circle at your subject and read the exposure instantly. f/oss measures true photometric luminance through your iPhone's camera and is calibrated against professional reference meters. FIVE METERING MODES • Aperture Priority: set f-stop and ISO, get your shutter speed • Shutter Priority: set shutter and ISO, get your f-stop • Exposure Value: read the scene's EV directly • Cine: shutter angle and frame rate for filmmakers • Manual: check your chosen settings against the metered scene BUILT FOR REAL CAMERAS • Camera profiles: save your bodies with their actual shutter and bias limits • Full, half or third stop increments • Configurable shutter, aperture, ISO and exposure bias ranges • Reference lock: freeze a reading and measure scene contrast in stops • Exposure lock for recompose workflows ACCURATE • True spot metering of exactly the circle you see • Full-color light analysis: reads saturated LED and neon light correctly • Verified against professional meters from daylight to low light FREE, NO SUBSCRIPTION Every feature is free, forever. If f/oss saves your shots, there is an optional tip jar.

Change how fast your videos play, then save the result to your photo library. Pick a video from your library or record one in the app, choose a speed, and watch the change right away. When it looks right, save it. The new video is written as its own file — your original is left exactly as it was. FOURTEEN SPEEDS 0.1x, 0.25x, 0.5x, 0.75x, 1x, 1.25x, 1.5x, 1.75x, 2x, 3x, 4x, 6x, 8x, 10x. The slider steps between them, so you can feel each one without looking. Take a golf swing down to a tenth of speed, or push a long clip through at ten times. SEE IT BEFORE YOU SAVE The preview plays at the speed you picked, so you are never guessing at the result. Play, pause, and scrub anywhere in the clip while you decide. AUDIO PITCH, YOUR CHOICE Changing speed normally drags the pitch along with it, and voices come out squeaky. Keep the pitch where it was, or let it ride with the speed for the classic effect. One tap either way. PORTRAIT AND LANDSCAPE Whatever orientation you shot in comes back the same way, at the resolution you started with. EVERYTHING STAYS ON YOUR DEVICE Your video never leaves it. There is no account to create, no upload, no ads, no analytics, and no crash reporting. The app asks for the camera and microphone only when you record, and for permission to add to your photo library only when you save. That permission is add-only, so the app cannot read what is already in your library. Picking an existing video goes through the system photo picker, which hands over just the one you chose. Free, with nothing to unlock.