Shutter-Speed
| Category | Price | Seller | Device |
|---|---|---|---|
| Utilities | Free | Lukas Fritz | iPhone, iPad, iPod |
Please note that the full potential of this App is only reached if you use it in combination with the PhotoPlug. The PhotoPlug is an optical sensor which connects to the headphone-jack of your iPhone and enables you to measure the actual amount of light passing through the camera shutter.
Please visit www.photoplug.de for detailed information and instruction.
The App also allows you to save the measured values into a handy table. Furthermore, the App automatically calculates a correction factor, which allows you to compensate a faulty shutter speed. For example, if you measure the 1/60s and it turns out to be just 1/50s, the App will tell you that the shutter-speed is 1/3 f-stops too long. This gives rise to a correction factor of -1, indicating that you have to close your aperture by 1/3 f-stop to get a correct exposure.
Reviews
Great idea, not quite operational
Djuna-X
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.
Inventive idea, failed execution
RAB2R
In all my trying, I could only get one recording to work. The app either crashed or froze on every other attempt. To make matters worse, the app is unclear as to which shutter speed should be fired first, resulting in me recording the wrong speed for the one successful attempt.
Great app, still needs improvements
Horacekenneth
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)
And a Calibration table to boot!
Carharty
This is an ingenious iPhone App. It does what it says and I've gotten credible readings for a Rollie Twin and a vintage Voigtlander. The interface is fine, but you need to add a camera first. Saving to no camera causes a soft exit from the program. I now have correction tables automatically generated for both cameras. I'll probably add the $16 light sensor for more accurate readings, but I am delighted with what I have. Best, Jim
Great App! Finally Something I Can Really Use!
WilliamBooth
Excellent first version. Audio measurement is excellent for slower shutter speeds. Waiting on the next batch of photo-electric eyes so I can throw away my oscilloscope! Thanks!!! Feature request: I would like to be able to adjust the recording duration, as I find the three second window a little bit tight.
Useful for testing analog cameras
Eben O
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.
Great app for shutter estimation on old cameras
dg13
This app made it very clear that the shutter was twice as long on all speeds under 1/100 sec. Easy to use. Accurate even at 1/50 using sound. I like the control of doing the analysis yourself instead of the app using some algorithm. I have not tried with the light adapter. That could very well extend the usefulness past 1/50.
Functions well but not perfect
John.Bob
I'm pleased with this app in general, audio measurement is a great way to measure shutter speeds. Its plenty sensitive and had no trouble clocking my old RB. Love the camera list stuff, my only complaint is the confusing measurement of amount off. Number of stops off is fine but the odd mix of fractions and decimals is just weird. Would much prefer if it was just decimals in the measurement.
