This seems like something that should have been A Thing five years ago, but is only now just appearing: Orion is an app for the iPad that lets you use it as a second monitor for any device with a HDMI out port—things like digital cameras or video game consoles, for example. The obvious choice here is a digital camera; I’d love to try this with a camera up on a 10′ pole to preview the image, for example, or to really take time to compose an image and see what it looks like before hitting the shutter button. Brought to us by the folks who built Halide, a more powerful (but somewhat obtusely designed) camera app for the iPhone. One caveat: it requires iOS 17, as Apple finally built external webcam support into that release.