You will find here support and references for my apps, especially “Pinhole Assist”, an app for pinhole photographer, and “Reciprocity +”, targeted for photographers for long exposures. “Le bord de la piscine” is the brand under which I sell apps on the apple AppStore.

Easy and accurate digital negatives calibration !

Better alternative photo printing with easy calibration !

Calibration+ helps you for alternate process printing, by allowing fine tone control on your digital negatives.

Pinhole Assist is the most complete app for making argentic and digital pinhole shots. It is available on the AppStore since 2011.

Pinhole Assist has 264 camera presets and 113 films available! (as of February 2024)

Here is the list of cameras in Pinhole Assist.

Answers to some frequently asked questions.

This is the list of films available in Pinhole Assist and Reciprocity+.

With Pinhole Assist, you can :

 • Compute exposure time ;  • Mesure light;  • Locate your camera in the predefined list or compute its aperture;  • Let the assistant automatically compensate for reciprocity of film (correction for long exposures), or use your own curves.

Reciprocity+, an iOS App for calculating long exposures with filters and reciprocity