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Shutter Lover
The Shutter Lover is a device specialized in the measurement of the travel time of shutter curtains.
Its design includes 3 LED used to enlight the 3 measurement points of the sensor in order to prevent any parallax error. That leads to an excellent accuracy, at up to 1/4000s.
The screen of the device displays the following informations
- First and second curtain travel times
- Shutter speed values at opening, center and closing points of the frame.
More detailed data values are streamed on the USB port and can be collected on a personal computer.
The sensor is 35mm format. An adapter is supplied for medium-format cameras.
Remote application
A remote application enables to collect, display and archive on a personal computer the detailed results of the measurements taken with the Shutter Lover.
This application is Open-Source, as are its interface specifications. So, you can adapt it to your own needs.
For installation and use, please refer to the following web address:
http://github.com/sebastienroy/shutter_lover_remote_app
Detailed documentation
The detailed documentation can be found in the user manual.
Verification of the accuracy of the tester
The accuracy of the tester has been tested using a model of real shutter: the rotary wheel.
A wheel rotates at a 3 m/s speed at the rim level, that provides a therotical travel time of 12ms on a 24×36 frame.
A 3mm slit on the rim simulates a 1/1000s speed