PinholeMeter vs Silverlog Pinhole

This app is a light meter that specializes in pinhole photography. First, please set the F number. Next, please set the ISO sensitivity of film to use. Finally, in the preview window, please tap where you want to measure the exposure. note: If you do not know the F-number of your pinhole camera, please calculate focal length / pinhole diameter. If you want to use photographic paper, please set to ISO6. Please note that in a dark place, you may not be measured accurate exposure. [Using the Countdown timer] 1. To start the countdown, tap the timer icon to the right of the exposure time. 2. Preview screen will be dark, and exposure time is displayed in white letters. It will decrease one second at a time. *To stop the timer, tap the Close(X) icon. caution: During the countdown, do not close this app, or do not navigate to another screen. Timer is stopped.

Silverlog Pinhole calculates the optimal pinhole diameter, effective f-stop and exposure adjustments for pinhole camera photography. HOW IT WORKS Enter your focal length (the distance from pinhole to film plane) and the app calculates the optimal pinhole diameter for the sharpest possible image, the effective f-stop, and the exposure compensation needed compared to a conventional camera. FEATURES • Optimal pinhole diameter calculation • Effective f-stop calculation • Exposure times from lighting presets, with ISO and reciprocity correction • Reciprocity from your film's own data, for 73 film stocks • Choice of Lord or Rayleigh constant for the optimal diameter • Film and paper format support • Works offline — no internet connection needed • Clean, focused interface • Dark mode support USEFUL FOR • Building DIY pinhole cameras • Converting existing cameras to pinhole • Calculating exposures for pinhole photography • Understanding the relationship between pinhole size and image quality • Educational exploration of camera fundamentals Part of the Silverlog photography toolkit. No account required. No data collected.