Automatic exposure mode is great for everyday situations, but you're probably using Halide for explicit control. First, tap the "Automatic" button.
It'll turn into an "M," meaning you're in manual. Two new buttons will appear, "ISO" and "AWB."
Manual mode uses gestures similar to automatic mode, keeping things familiar and intuitive. Swipe up and down to change shutter speed.
To change ISO speed, tap the ISO button. A dial will appear on screen.
Swipe horizontally to change ISO.
AWB stands for "Automatic White Balance." If you tap it, you'll be able to manually select a white balance. This adjusts the tint of your image to match the light source.
From left to right: daylight, cloudy, fluorescent, and incandescent.
Tap to Expose
In automatic mode, if you tap anywhere on screen then Halide continually monitors exposure at that point. In manual model, tapping anywhere will adjust once. This is great for getting your exposure in a rough range, and fine tuning it with manual controls.
When you have a custom ISO set, tap-to-expose will prioritize that ISO. This can be pretty useful, especially in our next segment.
Example: Photos at Dusk
Let's say you're taking a long exposure at dusk. Under normal circumstances, the system will never recommend 1/3 exposure speed. That's because you're holding your phone in your hand, and handheld long exposures will always be blurry. That means that in low-light the system has to boost its ISO, which adds noise.
If you want the best possible shot in low light, you:
- Mount your phone on a tripod
- Set ISO to its lowest setting
- Increase the shutter speed until the exposure looks right
And since Halide will prioritize ISO when in manual mode, you can even tap-to-expose without having to fight with the ISO jumping around.