ARRI ULTRA 16 - Manual (Page 7)

7
ARRI | Ultra 16 Lenses
T* XP Anti Reflex Coating
The new T* XP multi-layer anti-reflex coating reduces flares and internal reflec-
tions and creates a pleasing, gentle color balance. Compared to conventional
coatings it has a better transmission and a more uniform performance from
optical center all the way to the edges, resulting in higher contrast and deeper,
richer blacks.
The lens' internal construction in combination with the T* XP coating
ensures that they can easily handle tricky lighting situations like strong back-
light, sunsets or car headlamps. The round iris opening leads to organic looking,
pleasing out-of-focus highlights, and careful optical design ensures only minimal
breathing.
Radical Spherical Lens Surfaces
Old-style wide angle lenses are usually larger than their longer companions.
The 6, 8 and 9.5 mm Ultra 16 lenses, however, have a revolutionary small form
factor. This is made possible through a large diameter aspherical surface on
the front and a radically shaped spherical surface with a very strong curvature
on the inside. Radical spherical surfaces are cutting edge technology; they are
difficult to grind, tricky to polish and demand precise attention during coating.
Mastering these manufacturing techniques brings the reward of incomparable
optical performance at substantially reduced weight.
Front element of the 6 mm Ultra 16 lens
Large diameter aspherical surface
Radical spherical surface
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