ManFocus vs Metriflash

ManFocus transforms your iPhone into a professional light meter and exposure calculator. Whether you're shooting film or digital, take full control of your photography with precise manual settings. PROFESSIONAL LIGHT METERING • Capture accurate exposure readings in real-time • View EV (Exposure Value) for precise calculations • Color temperature display in Kelvin for white balance reference COMPLETE EXPOSURE CONTROL • Adjust aperture from f/1.0 to f/22 in 1/3 stop increments • Shutter speeds from 1/8000s to 30 seconds • Full ISO range with standard photography values • Lock any two parameters and let the app calculate the third INTUITIVE DUAL-SCALE DISPLAY • Visual aperture and shutter speed scale • See equivalent exposure combinations at a glance • Exposure compensation from -3 to +3 EV FILM PHOTOGRAPHY MODE • Lock your film's ISO and freely adjust aperture/shutter • Perfect companion for analog camera shooters • No more mental math for exposure calculations DEPTH & DISTANCE MEASUREMENT • Real-time distance detection using advanced sensors • Helpful for manual focus confirmation PHOTOGRAPHER-FOCUSED DESIGN • Dark interface optimized for shooting conditions • Customizable overlays: grid, crosshair, distance indicator • Haptic feedback for tactile parameter adjustments

Metriflash is a guide number flash calculator for film photographers shooting with manual flash. Set your flash's guide number, ISO, and distance — the app shows you the correct aperture directly on a sliding scale, just like a light meter. Adjust flash power and exposure compensation, and the scale shifts in real time. Save multiple flash profiles to switch quickly between different units or setups. No batteries, no metering — just math that works.