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> When you use Camera, VoiceOver describes objects in the viewfinder. To take a photo or start, pause, or resume a video recording, double-tap the screen with two fingers.

https://support.apple.com/guide/iphone/use-voiceover-in-apps...

It describes the scene, tells you how many faces are visible, whether or not the image is focused, lighting conditions.

https://www.youtube.com/watch?v=8CAafjodkyE

They can also generate alt text for photos which do not have that information already. Here's a video of the person in the original article describing this feature:

https://www.youtube.com/watch?v=FLBJUHkLTTA

Here’s a post on the topic from a couple of weeks ago:

https://news.ycombinator.com/item?id=27153244

I'm guessing it actually describes the content of the scene the camera is pointing at.

It does! It goes beyond simply enumerating objects and can describe their properties or context as well -- for example, it'll describe a husky as "a black and white dog lying on a wooden floor", or a soft drink as "a transparent cup with brown liquid in it".

VoiceOver also works with another accessibility tool called Magnifier, allowing it to be used as a general "what am I looking at" tool.