Photo Negative Ortensia is a fan-made antagonist in Abandoned: Discovery Island.
Photo Negative Ortensia resembles a normal Ortensia the Cat suit with the colors inverted.
Photo Negative Ortensia cannot be seen on camera when not active, but when she is active, she is seen standing in Character Prep 2. She will then move to the Staff Hall, where she is seen at the bottom right corner, as if she is walking into frame. Photo Negative Ortensia has two stages when moving to the Meat Freezer, her first phase depicts her standing at the farthest-left of the room. When she is about to enter the office, she is seen standing close to the right corner of the room. Lastly, she will enter the office, where she is seen standing at the right double doors, slightly leaning forward wit her mouth open. The player must hide under their desk to get rid of her, as failing to do so will result in a jumpscare.
- She is included in Zombiker's ADI Custom Night.
- She was originally created in 2017 but was revamped in 2021.