With Shutter-Speed you can test the Shutter speeds of your analog cameras just with your iPhone. Please note that the full potential of this App is only reached if you use it in combination with the PhotoPlug. 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.

Shutter-Speed alternatives

iOptron Polar Scope

This is an app to show the position of the Pole Star (Polaris in Northern Hemisphere, or Sigma Octantis in Southern Hemisphere) in the polar scope of all the iOptron(R) telescope/camera mounts. The app uses the best algorithm to calculate the position of Pole Star: The algorithm calculates 3D space motion of the Pole Star itself, precession, temperature and barometric pressure corrected atmospheric refraction, nutation, parallax, aberration, and etc.). NOTE: Since 2017/03/03, This app has the identical result as iOptron 8407, 8408 hand controller and iOptron Commander 5.4.

  • size 1.8 MB

Light Meter - exposure calculator

A light meter that is always in your pocket. Full of features it is indispensable for film photography with all manual camera. Write us: [email protected]

  • rating 4.0
  • size 7.8 MB

RadioactivityCounter

RadioactivityCounterThis application is a real working radioactivity counter without any extra hardware needed It will turn your phone into a Geiger Mller Counter to measure radioactivity after proper calibration. Attention after upgrading iOS to a higher iOS do the calibrate again, as camera data properties might have changed Disclaimer: The type of radiation picked up by the camera can be dangerous/detrimental to the users health as well as cause damage to the device. * = Attention some phone might not be compatible due the new version of iOS or missing features (gps precision using sim cards)- please try to use an older rev of the App which should be available according to my settings (1.3).

  • size 11.6 MB

Hairspring

Hairspring turns your device into a powerful mechanical watch timing machine. It measures the precision of mechanical watches, with an accuracy of at lease 1s/day, by analyzing the tick-tock sound using the microphone of the device. A detailed usage guide can be found here: http://www.diversminds.com/Hairspring/Hairspring.php

  • rating 3.88889
  • size 7.7 MB

Watch Tuner Timegrapher

Watch Tuner Timegrapher is a mechanical and automatic watch testing application. It displays the frequency diagram of the watch and measures rate, beat error, amplitude and beats per hour. If you have any questions, suggestions or any troubles using this app - dont hesitate to write me.

  • size 1.3 MB