Camera

The camera is an entity that is capable of capturing and storing images. In the Education Edition, it works together with the portfolio item to create collections of pictures.

While cameras exist $$, they have no purpose and can be obtained only via the command.

Obtaining
The camera can only be obtained in the creative inventory or with the command.

Bedrock Edition
In Bedrock Edition, the camera has no functionality and cannot be placed.

Education Edition and Bedrock 1.13.0
Using a camera from one's inventory captures a first-person screenshot. It may also be placed, creating a camera entity that can track the user, and take pictures from the camera's perspective. Photos that are taken with the camera appear in the portfolio.

Close-up snapshots of an item on the ground can be taken by holding the Shift key while right-clicking.

Future
At the Minecraft Pocket Edition panel at MineCon 2012, as well as one of Jbernhardsson's livestreams, it was stated that future plans include trying to have a proper use for cameras, perhaps an easier way to take screenshots and share them with others. In the BlockTalk Q&A, the camera was briefly mentioned as part of a broader "sharing" theme planned for Bedrock Edition in the future. It later got implemented into Education Edition, using the camera to make screenshots and share them in a special book.

Trivia

 * The camera's texture underneath is rotated incorrectly.
 * Cameras take damage like other mobs, because they are entities. They are affected by knockback.
 * A camera can be "killed" from falling damage. Because it is an entity, it displays a smoke particles after falling from a lethal height.