The Messages app chooses the front-facing selfie camera by default, but you can select the rear-facing camera instead and keep the filter effect in place. Pick one you like - the two Comic Book filters and the Ink filter produced some great results, but the two Watercolor filters were underwhelming, in my experience - and then tap the X button to close the Filters drawer. Next, tap the red-green-blue Filters button and scroll to the right to find five photo filters that aren't included in the Photos app: Comic Book, Comic Mono, Ink, Watercolor and Watercolor Mono. Tap the camera button to open the camera and then tap the spirograph-star button in the lower-left corner. To get to the new photo filters, open the Messages app and start or reply to a conversation. But you can easily create a comic book photo of yourself and either text it or save it to your camera roll. Why Apple hasn't added them to the Vivid and Dramatic filters in the Photos app? No idea. Like Memoji, you'll find the new photo filters in the Messages app. Where to find iOS 12's comic book photo filters
