EXPOCAL vs Luma Vision

EXPOCAL is the on-set exposure companion for cinematographers, DPs, and gaffers — every calculation you reach for between scouting a location and rolling, in one fast, dark-themed app. Nail exposure Incident metering math built on ISO 2720: dial in ISO/EI, shutter angle, and frame rate to get the exact T-stop — or work backwards from an aperture to the lux you need. Handles dual-base sensors and broadcast gain (dB) too. Match your gear Pick from a built-in library of 47 cinema cameras and 241 lenses. Check sensor coverage, mount compatibility, and how a lens, extender, or adapter behaves across your kit. Director's viewfinder Frame a shot right on your phone. Choose a camera and focal length and the live preview matches that lens's field of view — pinch or use the thumb zoom slider to find the frame before the camera is even built. Overlay mode draws the exact framing on a wide preview. Depth & focus Hyperfocal distance, depth of field, and aperture sweeps with sweet-spot, diffraction, and noise guidance. Light & color ND filter stops, white-balance mired shifts, and CTB/CTO/plus-green gel recommendations. Timecode Read SMPTE LTC straight from the audio input and show it full-screen, big enough to hold in front of a lens. When the sound has a clock and the camera does not, you film the number. The reader flywheels through dropouts and says when it has lost lock rather than pretending it hasn't. Export Generate clean PDF reports for scene and sensor planning. EXPOCAL gives estimates to support your judgment on set — always confirm critical exposures with your meter and monitor.

Luma is the companion app for your AI camera glasses — a calm, hands-free assistant for asking, seeing, and translating the world in front of you. Pair your glasses over Bluetooth and Luma turns them into a voice-first assistant. Say "Hi Luma" to start, ask about what you're looking at, or have a conversation translated as it happens. WHAT LUMA DOES • AI chat — ask by voice or text and get spoken answers • Live translation — translate conversations and signs, on-device when your languages support it • Look & describe — point your glasses and ask what you're seeing • Capture — take photos, videos, and voice memos on your glasses with a tap or a gesture • Gallery — pull your captures onto your phone over the glasses' own Wi-Fi, then keep, share, or delete them • Gestures — map a nod or a shake to capture, cancel, or pause PRIVATE BY DEFAULT Speech is transcribed on your device when your language supports it; otherwise it is processed by Apple's speech-recognition service. Captured photos and videos stay on your phone until you choose to share them. When you use cloud AI, only what's needed to answer your request is sent to our service — see the in-app Privacy Policy. TRANSLATES ACROSS NINE LANGUAGES Luma's live translation works between English, Spanish, French, German, Italian, Portuguese, Japanese, Korean, and Chinese. YOUR ACCOUNT Sign in with Apple or an email link to sync and unlock cloud AI chat. Camera and translation work without an account. Delete your account and data anytime from Settings. REQUIRES COMPATIBLE GLASSES Luma is a companion app and needs supported AI camera glasses, paired over Bluetooth, for capture, vision, and live voice features. Luma is an everyday assistant. AI answers and translations can be imperfect — don't rely on them for safety-critical, legal, or medical decisions. When using camera features, respect the privacy of people around you and local recording laws.