Shutter-Speed

A good idea for folks who work with older, analog cameras - the simple idea here is that you can listen to the shutter or, with a simple light sensor available from the author, examine the light coming through the shutter and determine the shutter speed. The app provides a database for you to store results by camera. There are room for improvements (the application doesn't try and do its own analysis of the data, it's up to you; the application makes assumptions about possible shutter speeds) but those of us who need this kind of application will probably find it useful nonetheless.

This app is excellent - zooming in/out on the waveform works nicely and it is easy to position and save measurements to the many mechanical cameras I own. It seems quite accurate between 1/1 and 1/15 even just using the built-in microphone, and that's plenty for me to perform simple checks for slow shutter speed accuracy. I've been using it mainly with SLR's, with the film door open and holding the mic close to the shutter mechanism. Thanks!

For old large format lenses to measure their accuracy to be able to compensate if necessary.

Love the app, exactly what I needed. I really appreciate the update with the old speeds but it still lacks flexibility, if nothing else the addition of 1/75 would help me but what I would like to be able to do is select any possible shutter speed, so after I use the app to test the first time, I can now come back with my updated shutter speeds and test how much they've changed (which they do in those old compound shutters)

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The idea is great and the measurement process (at least the only one I can use, 1s) work well. The problem is that, at least on my iphone 3GS the interface is not working correctly. The screen appears to be cut in half and I cannot change the target speed. Once it reads and you want to set the pick values by zooming in, it will not stay when you zoom out, and it is difficult to do it on small scale. Also it's a bit of a bummer that you cannot organize your camera in the list, after inputing them, or delete a reading (you have to replace it with a new one). Upgrade, my friend? I would like to keep on using it, as I have several old cameras.