Binding of Isaac: Rebirth Wiki

Added in Repentance

Telescope Lens is an unlockable trinket added in The Binding of Isaac: Repentance.


  • Raises the default chance for a Planetarium Planetarium to spawn from 1% to 10%.
    • This influences the chance after having already entered a Planetarium, keeping it at 10%.
  • Increases the chance for a Planetarium to spawn by 15%.
    • Combined with the raised default chance, this adds up to a perceived +24% chance increase when first picked up.
  • Makes it possible for Planetariums to spawn in Chapter 4 and Corpse Corpse.