The 0.5 or 0.5x camera zoom option is present on many iPhone and Android phones. It activates the ultrawide angle rear camera on a phone.
The 0.5 ultrawide zoom option is zooming out in comparison to the main 1 / 1x wide option. That’s why it’s sometimes called “2x optical zoom out”. It zooms out by switching picture taking from the main rear camera and its lens to the ultrawide camera and lens in order to capture the widest portion of the scene.
The extremely wide angle of view of the ultrawide angle cameras and lenses in phones, as well as in dedicated cameras, is suitable for capturing spacious scenes. Some examples are landscapes and building exteriors and interiors. It’s also useful for capturing larger groups of people.
Also, 0.5 gives a distorted look to the pics and videos you take. That can be great for making interesting photos and video clips, including distorted selfies. The rear cam 0.5 selfies are actually a trend on TikTok, Instagram and other social media platforms.
You should keep in mind that ultrawide cameras are generally of lower quality than the main 1 / 1x cameras. The ultrawide cams usually have smaller sensors, making them more prone to image noise in low light situations.
In many phone models, ultrawide cameras lack focus adjustment ability. That’s not an issue, unless you try to capture extreme close ups. Handheld selfies are not a problem, since ultrawide angle cams have a great depth of field, so everything is in focus, except the extremely close objects. On the other hand, some higher-end phone models do have focusing ability. With focusing, ultrawide cameras are great for taking closeup shots called macro shots.
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