The third lens on the Galaxy S10 and S10 Plus is an ultra-wide angle with a 123-degree field of view.
You get a better sense of your surroundings with the ultra-wide angle lens, but there's some noticeable fish-eye style distortion going on, where the edges of the photo curve in toward the center of the photo.
The S10 Plus has a secondary eight-megapixel selfie camera that's slightly wider with a 90-degree field of view. It's also used for taking better portrait mode shots.
It's not the widest angle selfie camera we've seen, but it's better than nothing!
And here's a selfie taken with portrait mode, or Live Focus as Samsung calls it, aided by the Galaxy S10 Plus' second selfie camera.
The portrait mode in this shot, where the background is blurred out against me, is pretty good.
And now the 123-degree ultra-wide angle lens.
Again, you capture more of your surroundings with the ultra-wide angle lens, like the door on the left with the beautiful design. But some things do look warped, like the back of the brown van and the building's wall on the right.
And a portrait mode selfie. This one was taken with the secondary selfie camera.
The portrait mode on the Galaxy S10 Plus' secondary selfie camera didn't work quite as well as the portrait mode shot taken with the primary selfie camera from indoors earlier. The side of the left headphone cup in the selfie, for example, shouldn't be blurred out.