Shutter-Speed
$1.19
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About Shutter-Speed
As an analog photographer you are likely to work with old, mechanical cameras. Those cameras often lack in accuracy with their shutter-speeds, resulting in over- or underexposed photos.
"Shutter-Speed" allows you to measure the shutter-speeds of your cameras simply with your smartphone, without the need of bulky equipment. The measured values can then be saved to a table. Additionally, the app automatically calculates a correction value in thirds of an f-stop. Hereby, even when your camera is inaccurate, the app tells you how to make accurate exposures !
How does this work ?
The App is based on an acoustic measurement-method: When you release the shutter of a camera, it makes a shutter-release-sound, which is caused by the opening and closing of the shutter. The App records this sound and displays a graphical waveform of it on the screen. Both the opening and the closing of the shutter produce a peak in the waveform. The distance between those peaks equals the shutter-speed.
Of course, the accuracy of this acoustic measurement has it's limits. It will give good results with slow speeds up to about 1/30 and 1/60. Leaf-shutters work better than SLR's and focal-plane-shutters, because they produce less noise which distorts the signal.
If you want more accuracy and be able to measure speeds up to 1/500, you can purchase a "PhotoPlug". This is a hardware-extension for the app, which allows you to measure the actual amount of light passing through the camera, instead of sound. The PhotoPlug is a small, 3cm long device which fits into the headphone jack of our smartphone. Once it is plugged in, it converts light into electrical signals, allowing you to make real light-measurements with your smartphone !
For further information please visit www.photoplug.de !
"Shutter-Speed" allows you to measure the shutter-speeds of your cameras simply with your smartphone, without the need of bulky equipment. The measured values can then be saved to a table. Additionally, the app automatically calculates a correction value in thirds of an f-stop. Hereby, even when your camera is inaccurate, the app tells you how to make accurate exposures !
How does this work ?
The App is based on an acoustic measurement-method: When you release the shutter of a camera, it makes a shutter-release-sound, which is caused by the opening and closing of the shutter. The App records this sound and displays a graphical waveform of it on the screen. Both the opening and the closing of the shutter produce a peak in the waveform. The distance between those peaks equals the shutter-speed.
Of course, the accuracy of this acoustic measurement has it's limits. It will give good results with slow speeds up to about 1/30 and 1/60. Leaf-shutters work better than SLR's and focal-plane-shutters, because they produce less noise which distorts the signal.
If you want more accuracy and be able to measure speeds up to 1/500, you can purchase a "PhotoPlug". This is a hardware-extension for the app, which allows you to measure the actual amount of light passing through the camera, instead of sound. The PhotoPlug is a small, 3cm long device which fits into the headphone jack of our smartphone. Once it is plugged in, it converts light into electrical signals, allowing you to make real light-measurements with your smartphone !
For further information please visit www.photoplug.de !
All Application Badges
Paid
app
app
Android
4.0.3+
4.0.3+
Android app
App History & Updates
More downloads Shutter-Speed reached 1 000 - 5 000 downloads
Price update Price changed from $2.69 to $1.19.
More downloads Shutter-Speed reached 500 - 1 000 downloads
More downloads Shutter-Speed reached 100 - 500 downloads
What are users saying about Shutter-Speed
S
by S####:
by S####:
Lack of documentation makes this app frustrating to work with. Will look elsewhere.
S
by S####:
by S####:
Works well for me
S
by S####:
by S####:
Very poorly laid out and just simply doesn't seem to work.
Z
by Z####:
by Z####:
A great little app that does what it says, nothing more, nothing less! Some instructions on showing how to place the guidelines to measure your exposure would be helpful... as well as how to expand the graph on high speeds and make it easier to see. I had to figure it out by myself :-(
V
by V####:
by V####:
Very good app, though only really useable with an optical sensor plugged in. Developer is plainly talented but included no docs or help file. It's important to know which parts of the wave form to select, so you'll need to Google for that. Read up on the Audacity methods online. The 'corrections' column in your results are bizarre and unintuitive until you realise it's 1/3 stops, then it makes sense. So '+4' would mean +four 1/3 stops, or +one and a third stops, etc. Very useful app.
B
by B####:
by B####:
A very useful tool with the photoplug optical sensor. Higher speeds become almost impossible to interpret so the vertical height of waveforms should be restricted so the user can gauge the required 'front' and 'rear' waves when the screen image is highly magnified.
Z
by Z####:
by Z####:
Doesn't work at all.Waste of time and money.No instructions bloody hopeless
W
by W####:
by W####:
Missed an accurate description how to get a trustworthy result.
U
by U####:
by U####:
Doesn't seem to work very well on my Zeiss ikoflex..shutter speed to choose is 125/250/500...
S
by S####:
by S####:
I tested a few of my large format lenses with this app. It works very well on both my Nexus 7 (second version) on Android 5.0.1 and Moto X (first version) on Android 4.4.4. I was surprised to learn that my oldest lens is nearly spot on at all but the very highest speeds! I expected it to be way off the mark. This app is extremely useful. A PhotoPlug may be in my future! This app is well worth the low price.
N
by N####:
by N####:
I will update my rating once I've had a chance to use the app. Right now I just wanted to say thank you for bringing this to Android. I purchased one of the plugs several months ago thinking there was an android app. I look forward to finally being able to use it.
by V####:
Very good app, though only really useable with an optical sensor plugged in. Developer is plainly talented but included no docs or help file. It's important to know which parts of the wave form to select, so you'll need to Google for that. Read up on the Audacity methods online. The 'corrections' column in your results are bizarre and unintuitive until you realise it's 1/3 stops, then it makes sense. So '+4' would mean +four 1/3 stops, or +one and a third stops, etc. Very useful app.