New reciprocity charts for Pinhole Assist

With Pinhole Assist now supporting multiple reciprocity charts, new charts were expected. Here they are.

• A chart adapted from Jim Shull's The Hole Thing (the one I currently used for films)
• Several charts derived from formulas by Gadget Gainer on APUG forums :
• 400TX
• TMX
• TMY
• HP5+
• 100 Delta
• Several chart derived from formulas originating from Without Lenses website
• T max 400
• T max 100
• TRiX & Plus 125
• Ilford films
• A chart for Ilford films

All these charts are downloadable as a zip package here.

Use iTunes to add the files : In iTunes, select your iPod/iPhone, select the "Apps" tab, scroll down : you will see at the bottom an array called apps. Apps are on the left. Select Pinhole Assit : you will have clist of file. Drag and drop there the files extracted from the zip.

Pinhole Assist v 1.5

A new version of Pinhole Assist is out on the App Store.

The new version includes a nicer design, much clearer and supports multiple réciprocity curves. So you can choose the one that fites you, or design your owns.

With "Pinhole Assist", argentic pinhole photography is even easier.

• Compute exposure time ;

• Mesure light;

• Enter your camera aperture from the predefined list or compute it;

• Let the assistant automatically compensate for reciprocity of film (correction for long exposures), or use your own curves.

Estimate light or measure it directly with the camera.

Enter your camera aperture or compute it from your camera geometry. Many pinhole camera settings are already included (Zeroimage™, Diana™ pinhole)

Select your film's sensitivity (ASA) and decide if you use reciprocity compensation.

Select the reciprocity curve you want to use.Via iTunes, you can add/edit/delete the reciprocity correction curves. Go to the app Web Site for further instructions.

Tip #1: adjust cell measurement via the iPhone/iPod "Settings" application.

Tip #2: if using an external cell, set its sensibility to 100 ASA.

Tip #3 : settings for Zeoroimage pinhole cams , holga p inholes and several others are prefdefined !

Light measurement is only available on devices with camera. The manual setting allows you do do estimation with text indication, or use an external cell.

* BETTER CELL ACCURACY,

* BETTER INDICATION OF LONG EXPOSURES,

* SUPPORT FOR HARMAN TiTAN CAMERA (f:206, 250 and 288),

* ADDED DIAPHGRAM VALUES OF 2,4,8,16 for calibrating purpose (use these value to compare measure with your "classical" camera".

* ADDED RATINGS SUPPORT

V 1.5

* NOW SUPPORTS MULTIPLE RECIPROCITY CURVES AND DATA VISUALISATION

* NEW LOOK AND FEEL FOR A CLEARER NAVIGATION

Available on the App Store

How to make a custom reciprocity chart for "Pinhole Assist" [updated] [updated]

How to have your own reciprocity chart with Pinhole Assist. A simple text editing can do it.

First connect your device to your PC ou Mac. Open iTunes. . copy the "Reciprocity_film.plist" file to your hard disk. Do not change the file name ! The next major version will acocmadate any name. For the time being, you need to keep the same filename.

Now we will edit it. For PC user, use Notepad or better: Notepad++. For mac, use textEdit (TextWrangler (free) is a must). The file look like this :

Inside the file you only need to modify the parts that looks like this:

That part means that for 15 seconds (all times are in seconds) the corrected time including reciprocity is 2 * 15 seconds : the number 2 is a multiplying factor seconds.Only add these values in ascending order. Save the file and copy it to iTunes.

Nota : The first values are expected to be 1 second and the correction value for 1 second (here 1 and 1.5 ).

Do no be afraid of a mistake : if something is wrong, delete the file and restart (from Springboard) Pinhole Assist : a new file will be generated.

Here is the link the file for film.

Here is a link to reciprocity for paper. (use with caution: these values is clearly not fitted for multigrade RC - I use no correction fir Ilford Multigrade RC below 30 minutes)

Rename this file to Reciprocity_film.plist

[update 08/10/2011]: the dfescription rrefers to the right type of file (where the entry is if type : value- coeff).
12/11/2012 : link updated

Assistant sténopé

Avec Assistant Sténopé, la photo au sténopé n'a jamais été aussi simple.

• Calculez le temps d'exposition ;

• Mesurez la lumière ;

• Retrouvez votre appareil dans une liste prédéfinie ou calculez son ouverture ;

• Prenez en compte la réciprocité du film avec un réglage prédéfini ou utilisez vos propres courbes.

Estimez manuellement la lumière ou mesurez la avec la cellule (les valeurs IL sont étalonnées pour 100 ASA)

Entrez le diaphragme de votre appareil (plusieurs appareil comme les Zeroimage™ou les Diana™ pinhole sont préconfigurés) ou calculez le diaphragme à partir des dimensions de votre sténopé.

Sélectionnez votre film et décidez si vous voulez utiliser le calcul de réciprocité.

Truc n°1 : vous pouvez régler la cellule via les "Réglages" de l'iPhone.

Truc n° 2 : Les plus exigeants pourront, via iTunes, modifier la courbe de correction de réciprocité. Rendez vous sur le site Web du Bord de la piscine pour des instructions précises.

Truc n°3 : si votre appareil n'a pas de cellule, vous ouvrez faire une estimation manuelle grâce aux indications. Si vous utilisez une cellule externe qui affiche les IL (Indice de luminosité, EV en anglais), réglez là sur 100 ASA.

Disponible sur l'App Store pour iPhone et iPod Touch

Disponible sur l'App Store pour iPhone et iPod Touch

Pinhole Assist [en]

With "Pinhole Assist" for iPhone/iPod Touch, pinhole photography is even easier.

• Compute exposure time ;

• Mesure light;

• Enter your camera aperture from the predefined list or compute it;

• Let the assistant automatically compensate for reciprocity of film (correction for long exposures), or use your own curves.

Estimate light or measure it directly with the camera

Enter your camera aperture or compute aperture from your camera geometry. Many pinhole camera settings are already included (Zeroimage™, Diana™ pinhole)

Select your film's sensitivity and decide if you use reciprocity compensation.

Tip #1 : adjust cell measurement via the iPhone/iPod "Settings" application.

Tip #2 : Via iTunes, you can access and edit the reciprocity correction curve. Go to the app Web Site for further instructions.

Nota : light measurement is only available on devices with camera. The manual setting allows you do do estimation with text indication, or use an external cell.

Tip #3 : if using an external cell, set its sensibility to 100 ASA.

Available on the Apple App Store

WiFiMIDI Free

Announcing WiFiMIDI now on the apple Store !

WiFiMIDI Free version is the same application as WiFiMIDI, with advertisment support.

WiFiMIDI Lite est la même application que WiFiMIDI, mais financées par des bandeaux publicitaires

Your iPhone or iPod need to be on the same WiFi network than the Mac running MIDI software. On the MacOS computer, the application "Audio MIDI Setup" is in the Utilities folder inside the Applications folder. This application routes the MIDI signal to all MIDI applications running on the Mac.

No need for special cable nor dedicated software.

works with an iPod® Touch 4G ou an iPhone® 3GS or later.

Needs iOS 4.1 or later.

Needs MacOS® 10.4 or later.

You need specific software such as rtpMIDI to run on Windows XP/Vista/7.

rtpMIDI : http://www.tobias-erichsen.de/rtpMIDI.html

WiFi MIDI est un clavier, un pad de percussions et un contrôleur MIDI. Il permet de piloter de applications MIDI sur votre Mac : GarageBand ou Reason par exemple.

Il suffit que l'iPhone ou l'iPod soit sur le même réseau Wifi (la même box) que votre mac. Sur le mac, l'utilitaire préinstallé "Utilitaire audio et MIDI" (Application>Utilitaires) transmet le signal MIDI a vos applications.

Pas besoin de cable spécifique, ni de logiciel supplémentaire !

Fonctionne avec un iPod Touch (4G) ou un iPhone 3GS ou plus.

Nécessite iOS 4.1 ou plus.

Fonctionne sur Mac OS 10.4 ou +

Nécessite un logiciel comme rtpMIDI pour fonctionner sur Windows XP/Vista/7.

rtpMIDI : http://www.tobias-erichsen.de/rtpMIDI.html

WiFiMIDI sans publicité est disponible ici.

KaleidoVid Lite

A free Kaleidocope. Uses both cameras on iPhone® 4 and iPod® touch 4G.

Tap the screen to freeze the picture, save it in PhotoRoll or share it via Twitter or Facebook.

Un Kaleidoscope gratuit. Un tap sur l'écran et vous partager les photos via Facebook ou Twitter ou par mail. Ou bien vous les sauvez simplement dans l'album Photos.

Disponible sur l'App Store℠

Available on the App Store℠

WiFiMIDI : le manuel [fr]

Cliquez sur les images pour les agrandir (sinon il vous faudra une bonne loupe).

WiFiMIDI Instructions [en]

WiFiMIDI

WiFi MIDI is a remote keyboard, drum pad and controller for MIDI. You can send MIDI signals to your MIDI compatible applications on your mac : GarageBand, Reason…

Available on the App Store℠

Your iPhone or iPod need to be on the same WiFi network than the Mac running MIDI software. On the MacOS computer, the application "Audio MIDI Setup" is in the Utilities folder inside the Applications folder. This application routes the MIDI signal to all MIDI applications running on the Mac.

No need for special cable nor dedicated software.

works with an iPod® Touch 4G ou an iPhone® 3GS or later.

Needs iOS 4.1 or later.

Needs MacOS® 10.4 or later.

You need specific software such as rtpMIDI to run on Windows XP/Vista/7.

rtpMIDI : http://www.tobias-erichsen.de/rtpMIDI.html

WiFi MIDI est un clavier, un pad de percussions et un contrôleur MIDI. Il permet de piloter de applications MIDI sur votre Mac : GarageBand ou Reason par exemple.

Il suffit que l'iPhone ou l'iPod soit sur le même réseau Wifi (la même box) que votre mac. Sur le mac, l'utilitaire préinstallé "Utilitaire audio et MIDI" (Application>Utilitaires) transmet le signal MIDI a vos applications.

Pas besoin de cable spécifique, ni de logiciel supplémentaire !

Fonctionne avec un iPod Touch (4G) ou un iPhone 3GS ou plus.

Nécessite iOS 4.1 ou plus.

Fonctionne sur Mac OS 10.4 ou +

Nécessite un logiciel comme rtpMIDI pour fonctionner sur Windows XP/Vista/7.

rtpMIDI : http://www.tobias-erichsen.de/rtpMIDI.html

Disponible sur l'App Store℠