Adjusting Exposure Time

Exposure time, also known as shutter speed, is the length of time the camera’s sensor is exposed to light.

Adjusting the exposure time lets you control both the amount of light captured and how motion appears in your photos. A shorter exposure (fast shutter speed) freezes action, while a longer exposure (slow shutter speed) creates motion blur, making moving subjects appear blurred while stationary objects remain sharp.

Adjusting Exposure Time automatically

In case you want the app to apply the most suitable exposure settings to your scene automatically in any mode (automatic A, semi-automatic SI, manual M modes), you can choose one of the ways to do so:

• Completely Auto adjustments.

By default, ProCamera automatically sets all the necessary shooting parameters, so you can simply open the app and take a photo at any time. The blue Focus Square and yellow Exposure Circle with “AUTO” in the center indicate that automatic settings are active. When you take a photo, ProCamera automatically adjusts focus, exposure, ISO, and exposure time, no matter where you point the camera.

• Using yellow Exposure Circle.

The Exposure Circle (yellow) controls the exposure by adjusting the ISO and exposure time. To have ProCamera meter a specific area of the scene, simply move the yellow Exposure Circle to that part of the viewfinder. The app will then automatically determine the optimal ISO and exposure time based on the light level in that area.

Note that you can move both the blue Focus Square and the yellow Exposure Circle together. Simply tap on any area on the viewfinder to let the app set Focus and Exposure on the area or object you have selected.

Adjusting Exposure Time manually

Adjusting Exposure Time manually in A mode

Manual Exposure Time adjustment is not available in automatic A mode. If you want to adjust Exposure Time manually, switch to semi-automatic SI or manual M mode.

Adjusting Exposure Time manually in SI/M mode

1. To access the Exposure Time dial, tap the Exposure Time button located on the top bar of the Capture Screen. The dial will appear in the lower part of the screen, above the Shutter button. The Exposure Time dial is always on the left side.

2. Adjust the Exposure Time value by swiping your finger over the Exposure Time dial.

Alternatively, you can tap the SI/M button on the Manual Controls panel to access the Exposure Time dial and adjust the Exposure Time value.

Note that when you tap the SI button, you may not always be able to access the Exposure Time dial. The dial options shown will depend on the last dial you used and made adjustments to. If you tap the SI button and the Exposure Time dial does not appear, simply tap the Exposure Time button located on the top bar of the Capture Screen, as described in step one of the Adjusting Exposure Time manually in SI/M mode section above.

When adjusting the Exposure Time in semi-automatic SI mode, ProCamera will automatically adjust the ISO value for a proper exposure.

Specificity of adjusting Exposure Time value in SI and M modes

Please note that in semi-automatic SI mode, you cannot manually set both ISO and Exposure Time simultaneously. Instead, you choose which setting to prioritize and adjust manually, while ProCamera automatically adjusts the other to achieve the correct exposure.

For example, if you manually set the ISO, ProCamera automatically selects the appropriate Exposure Time. Conversely, if you adjust the Exposure Time, the app automatically determines the optimal ISO.

In manual M mode, both ISO and Exposure Time can be adjusted independently, giving you full control over the exposure.

Resetting the ISO or Exposure Time value

To reset the ISO value, tap the ISO button in the top bar of the Capture Screen. The ISO dial will disappear and the app will automatically adjust the ISO to the appropriate value. Resetting the Exposure Time works the same way.