ShutterMeter

Has your old camera's shutter slowed down? ShutterMeter uses your iPhone's microphone to analyze the sounds of a mechanical shutter and estimate the interval between opening and closing. Compare it with the selected speed, check repeatability, and keep a test history for each camera. Repeat each speed three times Choose a camera and speed, then follow the measurement flow. Save three Clear signal results before moving to the next speed. Results with complex signals are marked separately and do not count toward the health map. Shutter health map See the median deviation and spread of the latest three clear results at each speed, along with how many speeds you have tested. Find gaps or speeds that need another check, then share a text report through the system share sheet. The report is a shooting and maintenance reference, not a calibration certificate. Archive backup and CSV export…