LFTools

LFTools is an app for film photographers. In the first version it has 2 tools.

- To calculate the Bellows Extension. Primarily for large format photographers. After entering the camera settings, i.e. focal length and bellow extension, the tool calculates the extended exposure in a factor and EV.

- The other tool is a Reciprocity Calculator. After selecting a film, shutter speed and aperture the tool automatically creates a table extended exposure times. The app comes with a pre-populated list of films from Ilford. Ilford was the only manufacture who publishes the p factor for their films. Al be it, the user can add its own films for calculation.