Umbramatic is the name given to the range of glass photochromic lenses from ZEISS. This wide spectrum of products caters for a wide variety of prescriptions and tastes.
The single vision lens Umbramatic Brown with the refractive index 1.525 has been in our product range since 1970 and is now the classic among photochromic lenses.
For your choice
The use of anti-reflective coatings such as ET, Gold ET and Super ET enhances wearing comfort by reducing reflections on the lens. AR coatings are particularly important for tinted lenses.
Umbramatic Brown is particularly suitable for low prescriptions. For higher powers, not only Umbramatic 1.6 is recommended due to its high index, but also Umbramatic Equitint which guarantees uniform darkening of the lens regardless of its thickness.