Cine Meter II vs LightScope

Cine Meter II measures light and color, so you can light and shoot and know what you'll get. “Cine Meter II is an essential app for every cinematographer.” — Jon Fauer, ASC “[T]he perfect app to have with you at all times.” — Roberto “Ganzo” Schaefer, ASC, AIC It's a zoomable spotmeter with an RGB waveform monitor and a false-color picture. It's an incident meter using a Lenny Hat or other diffusion, or Lumu™ Lite attachment, with lux and foot-candle readouts. (Lumu Power is NOT supported, and flash metering is NOT possible.) It's a color meter, showing color temperature and green/magenta tint, and giving you corrections to or from your target color. Measure more than just shutter-priority or aperture-priority: calculate shutter speed, shutter angle, aperture, ND, or ISO directly. • The exposure meter shows your stop as a decimal value (for cameras with EVF iris readouts) or as a full stop and fraction (for cine lenses with marked iris rings). Cine Meter II lets you use shutter angles – ideal for Digital Bolex and Blackmagic cameras – as well as speeds, and you can dial in ND filters and arbitrary exposure compensations. The spotmeter is zoomable up to 15x magnification (on devices that support camera zooming), using either the front or back camera. • The waveform monitor shows you how light levels vary across a scene. You'll see how smooth and even the lighting is on a greenscreen or background, and find subtle hotspots and shadows at a glance. The waveform’s RGB mode shows you color imbalances in the image and gives you a handy way to check color purity and separation for chroma-keying. • False-color mode lets you define allowable contrast ranges, and see instantly which shadows are underexposed and what highlights risk clipping. _______________________ READ BEFORE YOU BUY: Cine Meter II is NOT a flash meter; it can't measure strobes. Cine Meter II does NOT work with Lumu Power (the Lightning port Lumu), only Lumu Lite (the headphone jack Lumu). Cine Meter II gives you *absolute* light meter readings, but *relative* picture and waveform monitor levels: Cine Meter II’s picture and waveform monitor do not use the *exact* exposure shown by the light meter (they are close to the meter reading, but can differ from it slightly). The picture and waveform monitor show you *relative* levels within a scene, not *absolute* levels based on the meter reading. Shutter speeds, apertures, and ISOs shown in Cine Meter II are for metering purposes only and do not control the shutter speed, aperture, and ISO of the iPhone camera. The iPhone camera uses whatever exposure settings it needs to capture a reading. Cine Meter II is a light and color meter only; it is *not* a camera simulator. See http://www.adamwilt.com/cinemeterii/details.html#How_It_Works for details.

LightScope is a comprehensive solution providing professional light measurement and analysis using your iOS device's camera sensor. 【Key Measurement Features】 • Illuminance (lux) Measurement: Calculates accurate illuminance by analyzing EXIF data from the camera sensor. Illuminance is derived using the formula: (F-number² / (Exposure Time × ISO)) × Calibration Factor. • Exposure (EV) Calculator: Converts measured illuminance to EV and suggests proper exposure combinations in standard stops for your ISO and aperture (or shutter) settings. • Luminous Intensity (candela) Calculation: Automatically calculates the luminous intensity of a light source based on the set distance. Uses the formula: Illuminance (lux) × Distance². • Color Temperature (K) & Tint Analysis: Precisely measures the light source's color temperature (1500K~15000K) and tint (green-magenta bias) by analyzing the camera's white balance sensor data — useful for identifying fluorescent and LED lighting. • Real-time Histogram: Visualizes the balance of shadows, midtones, and highlights through 16-level brightness distribution analysis. • Contrast Ratio Measurement: Evaluates the brightness ratio between bright and dark areas of a scene (based on 10th/90th percentiles) according to WCAG accessibility standards. • Noise Measurement (SNR): Calculates the signal-to-noise ratio in dB to evaluate image quality in the shooting environment. 【Advanced Features】 • Image Capture and Storage: Captures camera images at the time of measurement and stores them with measurement data. • Full-screen Image View: Zoom, pan, and rotate captured images for detailed inspection. • Gallery Saving: Save captured images to your device's photo library. • Measurement History and Trends: Save all measurements chronologically and chart trends for lux, EV, color temperature, contrast, and SNR. • Continuous Logging: Automatically record measurements at a set interval (1-60s) — great for lighting design and site surveys. • Full-Resolution Image Storage: Keep captured images at original quality for detailed inspection and gallery saving. • Export All History: Export every measurement as a CSV file or a PDF report. • Notes & Location Tags: Attach notes to measurements and optionally save the measurement location. • Home Screen Widget: See your last measurement (lux, color temperature, contrast, SNR) right on the home screen. • Camera Full-screen Mode: Hide panels to focus on the camera view while checking key measurements via a mini info panel. • Measurement Lock: Freeze exposure and white balance for stable, steady readings. • Spot Metering: In full-screen mode, tap anywhere to meter around that point. • Perfect Dark/Light Mode Support: All UI elements automatically adapt to the system theme. 【User Settings】 • Calibration Wizard: Enter a reading from a reference lux meter and the calibration factor is calculated automatically. Manual slider adjustment is also available. • Distance Setting: Set the distance to the light source for precise luminous intensity (cd) calculations. • Front/Rear Camera Selection: Choose the appropriate camera for your measurement situation. 【Technical Features】 • Support for measuring various light source types: natural light, LED, fluorescent, incandescent, etc. • Color temperature and tint sourced directly from the camera ISP's white balance estimation for reliable readings • 10-frame moving average filter for measurement stabilization • Center-weighted or spot (tap-to-meter) analysis for accurate evaluation of the main subject • Automatic exposure quality assessment based on histogram analysis Perfect tool for photographers, videographers, lighting designers, UI/UX developers, and anyone who needs accurate light measurements.