Very poorly laid out and just simply doesn't seem to work.
Shutter-Speed at Google Play market analyse
Estimation application downloads and cost
Description
Shutter-Speed works together with the PhotoPlug - a small sensor which connects to the headphone jack of your smartphone.The sensor is available on www.filmomat.eu. 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.
Reviews
Works well for me
Lack of documentation makes this app frustrating to work with. Will look elsewhere.
Do not buy, no instructions
This app is entirely sound based, you only need the mic on your phone to see if a given shutter speed is accurate. The UI is seriously unintuitive, clearly made by an engineer. I had to google the author's website to figure out how to even use it, and the documentation there had old screen shots. BUT... When I did get it figured out, it was very easy to use. Make sure to record in a quiet space, as you are the one that has to look at the resulting soundwave graph and figure out which bits are the sound wave peaks from your shutter opening and closing. This app is worth a dollar to be sure, but totally ripe for someone to make a much easier to use and more intuitive clone of it.
Had I given it any real thought I would not even spend the dollar. An slr makes all kinds of internal noise, mostly the mirror. You can't separate shutter from mirror sound.
Good app but very limited. This will only work for non-SLR cameras with leaf shutters, and even then it's really only useable for checking slow speeds like 1/8 and slower. If the app could use light instead of sound, then it would work perfectly for all analog cameras at all speeds. Shouldn't be hard for a smartphone to measure the duration of a burst of light through a camera lens........?
