Shutter-Speed: Measure Analog Camera Shutter Speeds Easily
Shutter-Speed is a practical utility app designed for iPhone users to accurately test the shutter speeds of their analog cameras. This app enables you to measure how fast your camera's shutter operates using just your iPhone. For optimal functionality, consider using the app alongside the PhotoPlug, an optical sensor that plugs into your iPhone's headphone jack. This sensor helps you measure the actual light passing through the camera shutter, ensuring precise results.
Moreover, besides measuring shutter speeds, Shutter-Speed offers a useful feature where you can save measured values in a convenient table. The app automatically calculates a correction factor to adjust for any inaccuracies in the shutter speed readings. For example, if you measure a speed of 1/60s but it's actually 1/50s, the app will notify you that the shutter speed is 1/3 f-stops too long and recommend a correction factor of -1. This guidance helps you achieve correct exposure by suggesting adjustments to your aperture settings.
