Shutter vs Camera Exposure Calculator Pro

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. 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.filmomat.eu for detailed information and for ordering the PhotoPlug. How-To: Point the camera towards a bright light source. Place the PhotoPlug closely behind the camera shutter. Start the measurement and release the shutter. The App automatically analyzes the signal and calculates the shutter speed. All measurement values can be stored into a handy table. Multiple different cameras/lenses can be stored. A correction factor is calculated, which you can use to compensate a faulty shutter speed. For example, if you measure the 1/60s and it turns out to be 1/50s, the App will tell you that the shutter-speed is 1/3 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. Without PhotoPlug, the App will record the sound of the camera shutter and calculate the shutter speed from that. Please note that this procedure will only give useable results for speeds below 1/30sec. With the PhotoPlug, shutter speeds up to 1/500sec can be measured.

Camera Exposure Calculator app allows you calculate the perfect exposure for your photography. A good helper when shooting on film You just have to input your current exposure (Aperture, shutter speed and ISO) and it will automatically calculate the exposure based on your new settings. It supports to add an ND filter until 30 stop. The apps displays the current EV and integrates a chronometer to help you calculate a perfect exposure. With this app you can input your actual aperture, shutter speed and ISO of your DSLR camera, and it will display some options with different combinations of the previous parameters, but with the same exposure metering. It can be used in exposure meter mode (light meter). The exposure value (EV) is shown at the top of the screen. Your required exposure time will be shown in the display. The slowest shutter speed setting on most cameras is 30 seconds. For any exposure times longer than this, where you need to use the Bulb or Time mode, a countdown timer is enabled so you can time your exposure within the app.