# Pinhole Assist > lightmeter with reciprocity Canonical page: [https://chrome-stats.com/d/id466757473](https://chrome-stats.com/d/id466757473) ## Overview - **ID:** `id466757473` - **Platform:** Apple - **Type:** Apple app - **Status:** Available - **Publisher:** Le bord de la piscine - **Category:** Photo & Video - **Rating:** 4.90 / 5 (19 ratings) - **Version:** 4.40 - **Last updated:** 2026-03-24 - **First published:** 2011-09-30 - **Size:** 9.47 MB - **Data as of:** 2026-09-26 - **Store listing:** [Apple App Store](https://apps.apple.com/us/app/pinhole-assist/id466757473) - **Website:** [https://www.facebook.com/pinholeassist/](https://www.facebook.com/pinholeassist/) - **Privacy policy:** [http://henry.thomas.pagesperso-orange.fr/styled-15/index.html](http://henry.thomas.pagesperso-orange.fr/styled-15/index.html) ## Description The most complete app for making argentic/digital pinhole and zoneplate shots. Available on the AppStore since 2011! 327 pinhole cameras presets and 122 films available! *** Feb 8, 2019 "My favorite pinhole app!! "This is my go to app for pinhole photography…this has made getting good results much easier…" bizzy *** Dec 16, 2016. "Wow. This app blew me away with its features and calculations (especially reciprocity fail). - Horacekenneth *** Feb 19, 2014 Wonderful!! "This app is perfect for the pinhole photographer in the field. I love that I can save settings for all my cameras and recall them instantly in the moment. - Papskier" *** So useful! May 26, 2013 "This takes the guesswork out of exposure calculation, since it turns your iPhone into a light meter and suggests the correct exposure! Works like a charm. Great app for pinhole photographers." *** May 16, 2012 : "Pretty much the perfect app for pinhole", Gavin Lucas *** March 26, 2012 "Pinhole photography - Great app! This will make pinhole photography much simpler to do", Zone v *** November 28, 2011 "Great solution !! - Thank you for this Pinhole timing app. I have many different pinhole cameras and this will help me figure timing on all of them. Thank you !!Greg." Pinhole Assist will be your companion to argentic and numeric pinhole, as well as view camera photography and wet-plate . The range of aperture and sensitivity (starting at 0.05 ASA ) allows for film, photo paper, wet-plate and as well as pinhole. * Built-in camera computes exposure; * alternatively enter EV reading for any lightmeter * or enter time metering to compute reciprocity effect. * Use built-in exposition timer and bubble level for optimal shot; * The light meter has a spot-meter feature and allows for incident metering; * Enter your camera aperture from the predefined list (170+ pinhole cameras) or compute it; * Let the assistant automatically compensate for reciprocity of film (correction for long exposures, 60+ different curves included), or use your own curves. * Save, restore and presets (combos) : aperture, predefined cameras, ASA and reciprocity settings • 30+ builtin filters (red, ND…), add your own, mafast acess your favorites , * Log shot information : preview, exposure, metering, location, interactive map , date and a shot. Export as picture, CSV or JSON file. You can create film and set reciprocity curve from within Pinhole Assist. Crete new ones, or tweak existing ones. Use iTunes (on Mac/PC) to import/export access the films you created, or exchange them via email m curves (Go to the app Web Site for instructions) * timer usability : now tapping the chrono icon directly starts the timer starting the chronometer automatically create a log. * Combos : edit for your camera+ film combination (combo) the aperture or the predefined camera, as well as film speed and reciprocity. * Choosing a film reciprocity now sets the film speed. * 119 different films, including Multigrade paper and Harman positive paper * 300+ different pinhole and zone plate cameras : Ondu, Diana, Holga, Sténoflex, Reality soSubtle, Lensless, Ilford, Stenopéika, Vermeer, 8banners, ZeroImage, Leonardo, Carlos, Nopo, Spiral, Sharan… Any other camera can be accommodated. Go to the Settings to : * adjust scales can be by ½ EV or ⅓ EV, * enable bellow correction: a button will appear on the main screen to allow bellow adjustment, allowing to use view cameras; * adjust the cell and incident metering constant; * start the timer automatically or not; * adjust log behavior. Please note: this is not a camera app: it does not take picture. This is a sophisticated exposure calculator to take argentic (ou DSLR) shots with an pinhole camera. ## Rankings - #247,999 — Overall ## Review summary Pinhole Assist is highly praised for accurate metering, reciprocity handling, and broad film/camera support, plus time-saving features like saving camera presets and timestamped views. The main downsides are stability issues (crashes and occasional meter lockups) and missing features (manual f-stop input and converting external meter readings). Users also suggest small UI tweaks such as better zoom/shape matching and an EV preview. ### Pros - Accurate pinhole metering with reciprocity corrections across a wide range of films and cameras. - Saves time and improves results by automating exposure calculations and by saving/recalling camera profiles. - Covers pinhole-specific settings (pinhole size as an f-stop, film speed/type) and supports both reflected and incident metering. - Regular updates with new films and cameras, along with responsive communication from the developer. - Useful in the field with the ability to save a view containing all exposure data and a timestamp. ### Cons - Stability issues include crashes on load and crashes when editing reciprocity tables, plus occasional light-meter lockups. - Missing manual f-stop entry and lack of a straightforward way to import/convert 'normal' exposure settings from handheld meters or DSLR tests. - Some requested UI/UX improvements (e.g., matching zoom/shape to image size and an EV preview) would enhance usability. ## Similar extensions and apps - [This App is a Light Meter](https://chrome-stats.com/d/id1449194398) — 4.10 / 5 - [PinholeCameraCalc](https://chrome-stats.com/d/id6772789808) - [PinholeMeter](https://chrome-stats.com/d/id501893760) — 3.60 / 5 - [PinholeCam](https://chrome-stats.com/d/id613960269) — 3.70 / 5 - [Photometer](https://chrome-stats.com/d/id429873747) — 1.70 / 5 - [Film Photography Viewfinder](https://chrome-stats.com/d/id6741761447) — 5.00 / 5 - [LightMeter Express](https://chrome-stats.com/d/id6748661409) — 4.70 / 5 - [Second View - viewfinder](https://chrome-stats.com/d/id6761623499) — 4.00 / 5 - [Lightme - Lightmeter](https://chrome-stats.com/d/id1509033790) — 4.80 / 5 - [myLightMeter PRO](https://chrome-stats.com/d/id583922375) — 4.80 / 5 - [Silverlog Pinhole](https://chrome-stats.com/d/id6759198053) - [The Film Friend: Light Meter](https://chrome-stats.com/d/id6759234180) --- Source: [Chrome-Stats](https://chrome-stats.com/d/id466757473)