https://www.macworld.com/article/3438157/hands-on-with-the-iphone-11-cameras.html
You can optionally set the iPhone 11—for both video and stills—to capture data from both the wide and ultra wide cameras. The iPhone retains both versions for an undetermined period of time; eventually, if you do nothing with the ultra wide version, it will get thrown away. What’s really happening here is that the iPhone is stashing away a broader view of the image or video you just took, in case you end up realizing after the fact that an important part of the scene was cropped off the edges of the frame.
To fix that issue, you do exactly what you’d expect—open the image in the Photos app and tap Edit, then select the Crop tool. You’ll discover that there’s more image beyond the crop marks! This is image data from the ultra wide camera that has been seamlessly stitched into your photo or video, and if you want to use it, you can just change the crop to reveal more information. It’s a very clever way to provide a safety net via the ultra wide camera. Once you’ve tapped that Edit button, that extra off-camera information will continue to be available for later tweaking—iOS won’t throw it away.
Night mode
Oh, another fun note: According to the Apple employee I spoke to in the demo area, Night Mode isn’t just for quick handheld shots. If you put the iPhone on a tripod so that it’s stable—and it’ll know, because it’s equipped with plenty of motion sensors—it will let you take even longer exposures, which would be handy for outdoor night shoots, for example. So there’s more to night mode than you might have thought.
Not bad ....