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Shutter-Speed works together with the PhotoPlug - a small sensor which connects to the headphone jack of your smartphone.
The sensor is available on There you also find further information about this App.

Together with the PhotoPlug, this App transforms your smartphone into an optical shutter speed tester for analog cameras. Just open the back of the camera, point the lens towards a bright light source and position the PhotoPlug behind the camera. Once you release the shutter, the App will display a waveform with two peaks: One peak when the shutter opens, another one when the shutter closes. The time between those peaks reassembles the shutter speed of your camera. The App also calculates a deviation value in f-stops and allows you to save measurements to your phone.

Acoustic mode: The App will also work without the optional PhotoPlug sensor. Without the sensor, the App records the sound of the camera shutter (shutter release sound). This works, because the shutter makes a noise when it opens and closes. Please note that this is only suitable for shutter speeds slower than 1/30sec.

You are allowed to use this product only within the laws of your country/region. SharewareOnSale and its staff are not responsible for any illegal activity. We did not develop this product; if you have an issue with this product, contact the developer. This product is offered "as is" without express or implied or any other type of warranty. The description of this product on this page is not a recommendation, endorsement, or review; it is a marketing description, written by the developer. The quality and performance of this product is without guarantee. Download or use at your own risk. If you don't feel comfortable with this product, then don't download it.

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