In Worlds of Hurt, Photographer's Eye can be bought at the Gatherer's Garden in the central hub for 20 ADAM.
- To obtain the most out of them, one should obtain and equip the Photographer's Eye tonics as soon as possible, as they help speed up research on subjects such as the limited Little Sisters and Turrets.
- It should also be noted that the effects of both Photographer's Eye and Photographer's Eye 2 stack.
- The Photographer's Eye tonics become pretty much useless once you have completed research on all subjects. Upon finishing all or most of your research, you should swap these out for some more useful tonics at a Gene Bank.