# Deco-Lux Exposure > The precision light meter film photographers have been waiting for. Canonical page: [https://chrome-stats.com/d/com.decolux.exposure](https://chrome-stats.com/d/com.decolux.exposure) ## Overview - **ID:** `com.decolux.exposure` - **Platform:** Android - **Type:** Android app - **Status:** Available - **Publisher:** Tally Ho - **Category:** PHOTOGRAPHY - **Downloads:** 1 - **Version:** 1.6.0 - **Last updated:** 2026-09-10 - **First published:** 2026-05-13 - **Publisher country:** US - **Size:** 6.18 MB - **Data as of:** 2026-09-26 - **Store listing:** [Google Play Store](https://play.google.com/store/apps/details?id=com.decolux.exposure) - **Privacy policy:** [https://gist.github.com/justinomps/12745423a9e8e11d4c97a457a2eb5325](https://gist.github.com/justinomps/12745423a9e8e11d4c97a457a2eb5325) ## Description our phone is now the most capable light meter you own.

Deco-Lux Exposure is a professional-grade spot and incident light meter built for photographers who shoot film. Whether you're metering a single shadow with a Leica rangefinder or mapping nine zones across a 4x5 landscape, this is the tool that replaces a $700 handheld meter — and does things no handheld meter can.

PRECISION METERING
• Spot metering via rear camera with hybrid AE analysis for accurate EV readings in any condition
• Average and center-weighted metering modes for quick overall scene evaluation
• Incident metering via ambient light sensor — no accessory dome required
• Adjustable calibration (±3.0 EV in 0.1-stop increments) to match your trusted reference meter
• EV smoothing for stable, readable values without jitter

ZONE SYSTEM — BUILT IN, NOT BOLTED ON
• Full Zone 0–X visualization with true grayscale rendering
• Store up to 9 readings as midtone, shadow, or highlight
• Subject Brightness Range (SBR) calculated automatically
• Drag-to-place zone shifting — slide the entire tonal map to expose for the zone you want
• Pre-visualization strip shows how your readings will actually render on film
• N+/N- development suggestions based on SBR and film characteristics
• Dynamic range clipping warnings when your scene exceeds your film or camera

FILM STOCK INTELLIGENCE
• 30+ built-in film profiles: Tri-X, HP5+, Portra, Ektar, Velvia, and more
• Automatic reciprocity failure correction — no more guessing at long exposures
• Exposure latitude indicators for over and under exposure
• Push/pull limits per stock

EXPOSURE PRIORITY MODES
• Program (P): Best-match aperture and shutter from your camera's actual settings
• Aperture Priority (Av): Lock your f-stop, get the shutter speed
• Shutter Priority (Tv): Lock your shutter, get the aperture
• Tap any exposure combo to see every valid aperture/shutter combination for the scene

CAMERA PROFILES
• Define your camera's exact aperture and shutter speed clicks
• Set dynamic range per body — the app works within your camera's real capabilities
• 7 presets included: Leica M6, Hasselblad 500 C/M, Nikon F3, and more
• Create unlimited custom profiles

SESSION LOGGING
• Automatic session tracking with every metering sequence
• GPS tagging with reverse geocoding — know exactly where you made each exposure
• Review past sessions with full zone bar reconstruction
• Editable notes per session
• Shareable exposure cards — art deco styled 1080×1920 PNG summaries of your metering data

PHOTOGRAPHY TOOLS
• Pinhole Calculator — with film-specific reciprocity correction
• Filter Stack Calculator — ND, polarizer, and B&W contrast filters with 23 presets
• Bellows Extension Calculator — macro and large format compensation
• Depth of Field Calculator — near/far limits, hyperfocal distance, visual depth bar
• Fill Flash Calculator — guide numbers, ratios, sync speed constraints
• Long Exposure Timer — countdown with alarm, vibration, and screen wake lock
• EV Reference Table — real-world scene descriptions from EV -6 to EV 18

DESIGNED FOR THE DARKROOM, NOT THE FEED
• Dark theme with gold and deep purple accents — inspired by art deco instrument design
• Luminance histogram with zone-coded clipping warnings
• Multi-spot map overlay showing all stored readings on the viewfinder
• Voice readout for hands-free operation in the field
• Home screen widget for instant EV/exposure at a glance
• Pinch-to-zoom for precise spot targeting
• AE lock for comparing scene brightness with a frozen reference
• Full landscape support — no state loss on rotation

No ads. No subscriptions. No cloud account. Your data stays on your device.
Made by a photographer, for photographers. ## Rankings - #3,195,302 — Overall ## Permissions and access ### Permissions - `android.permission.ACCESS_COARSE_LOCATION` - `android.permission.ACCESS_FINE_LOCATION` - `android.permission.ACCESS_NETWORK_STATE` - `android.permission.BLUETOOTH_CONNECT` - `android.permission.BLUETOOTH_SCAN` - `android.permission.CAMERA` - `android.permission.FOREGROUND_SERVICE` - `android.permission.RECEIVE_BOOT_COMPLETED` - `android.permission.VIBRATE` - `android.permission.WAKE_LOCK` - `com.decolux.exposure.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION` ## Similar extensions and apps - [Light Meter - Lite](https://chrome-stats.com/d/com.willblaschko.android.lightmeterv2.free) — 1,451,982 users, 4.34 / 5 - [Light Meter](https://chrome-stats.com/d/com.willblaschko.android.lightmeterv2.pro) — 16,340 users, 4.44 / 5 - [myLightMeter Pro](https://chrome-stats.com/d/com.dq.mylightmeterpro) — 950 users - [Light Meter, Spot Meter Pro](https://chrome-stats.com/d/fr.kantumtek.spotmetre) — 32 users - [ProFilm Meter](https://chrome-stats.com/d/com.shp.profilmmeter) — 269 users - [Zone Light Meter](https://chrome-stats.com/d/com.zonelightmeter.app) — 326 users - [Light Meter Pro](https://chrome-stats.com/d/am.highapps.lightmeter) — 231 users - [Pantex Spot Meter](https://chrome-stats.com/d/com.dotkomrade.pantexmeter) — 13 users - [Lightmeter: Film & Logbook](https://chrome-stats.com/d/com.vodemn.lightmeter) — 127,666 users, 4.40 / 5 - [Light Meter](https://chrome-stats.com/d/com.sdgcode.luxlightmeter) — 138 users - [Aperture Light Meter](https://chrome-stats.com/d/com.mindeon.aperture) — 2 users - [Light Meter - Lux, Exposure](https://chrome-stats.com/d/com.contechity.lux_meter) — 182,736 users, 4.75 / 5 --- Source: [Chrome-Stats](https://chrome-stats.com/d/com.decolux.exposure)