Yes, Vespera includes an anti-fog heating system that prevents condensation from forming on the lens. However, this feature requires the hygrometer sensor to activate automatically based on humidity levels.

If you own a Vespera (first generation) or Vespera II, you can purchase the hygrometer sensor separately here.

Note: Vespera Pro, Vespera Pro 2 and Vespera III already come with a built-in hygrometer sensor. There is no need to purchase an additional one.