ARRI / ZEISS Ultra Prime Lenses
CARL ZEISS/ARRIFLEX
U LT R A P R I M E S
HIGHEST PERFORMANCE OVER
Fifteen high performance lenses with focal lengths from 10 mm to 180 mm and covering the full Super 35 format, have been developed over
years of collaboration with Carl Zeiss. A large team of mathematicians and physicists have translated the latest scientific research
findings into practice, among other things employing lead-free and arsenic-free optical glasses. The objective was to create lenses which for
the first time completely unite all main characteristics such as focus, contrast, colour saturation, colour uniformity and compactness together
with a high speed rating and low aperture-induced focus shift. Additionally the new lens standard was optimized for close-focus, where to
date conventional optical concepts have clearly been weak.
THE ENTIRE FOCUSING RANGE
Lenses reach their highest performance at the focus setting for
which they have been optimized. This is normally infinity.
Beneath that the performance usually drops off, particularly
through a considerable increase in image area curvature and
increasing aperture aberrations. Because of this, most optics
manufacturers limit the minimum close-up setting possibility of
their lenses to avoid users from moving too far into this area of
lesser performance.
Floating Elements for
outstanding close-up Performance
With the ULTRA PRIME lenses, Carl Zeiss introduced and perfected an effective means against: Floating Elements. This is a
design principle in which lens groups move in relation to each
other during focusing, thereby correcting image area curvature.
This principle must be taken into account not only in the optical
design but also in the highly precise construction of the mechanical
components. Both were achieved for the new ULTRA PRIME
lenses allowing for close-up setting possibilities almost up to the
front element of these lenses.
Genuine Internal Focus for sensitive Focusing
at a constant Optical Length
Conventional lenses change the distance of the entire internal
optical assembly relative to the filmplane when focusing.
In practice this brings considerable disadvantages, for example
through drift of the gears for focus and iris, displacement of the
center of gravity, etc..
All these disadvantages are avoided by the ULTRA PRIME lenses: through their genuine internal focus, the external position of
the lens remains constant – for the entire range of focus. Instead
of moving the entire internal optical assembly with a large drive
mechanism, only small lightweight lens groups in the interior of
the lens are moved. This facilitates considerably more sensitive
focusing.
Increased Image Contrast according to the latest
Research Findings of Carl Zeiss
In response to the extreme demands of advertising photography,
for which Carl Zeiss is one of the leading optics suppliers, new
methods and materials were developed to suppress stray light
and to increase colour saturation. Purer, more intensive colours,
especially at full aperture, were thereby achieved.
An important criterion in the optical design was a high MTF
value for the rendering of 10 line pairs/mm, a frequency range
which is responsible especially for the crispness of the image.
On all ULTRA PRIMES over 90 % MTF was attained for this
spatial frequency. The extremely uniform brightness across the
entire image area augments the impression of sharpness.
Colour fringing is no longer perceivable. For the first time the
ultra primes – unlike other lenses – were corrected not only
for infinity, but also particularly for close-focus. The result:
highest quality optical performance over the entire focus range.
10
12
14
16
20
24
28
32
40
A R R I U LT R A P R I M E S
50
65
85
100
135
180
Unified Colour Characteristics:
Super-Colour-Matched
It goes without saying that the optical glasses were especially
selected to ensure unified colour characteristics. As the inventor of
optical anti-reflex coating, Carl Zeiss however augments this with a
T* multiple-layer anti-reflex coating system for individual lens
surfaces, which is adapted so that the colour characteristics
(Color Contribution Indices) of all lenses of the entire set
lie close together with very narrow tolerances. Put simply:
the ULTRA PRIME lenses are super colour-matched.
Precision focusing with constant
Optical Length, without Backlash
All lenses in this set have a rigid, very robust housing.
The overall length is constant over the entire focusing
range. The completely new focus drive mechanics are
particularly sensitive and free of backlash.
Iris and Focusing Rings without
axial Displacement
The rigid construction creates the prerequisite for an
important advantage: the position of the gears for focus
and iris does not move axially during focusing.
External motor units thereby work more simply and with
considerably increased reliability. Also, lens changing
becomes much easier, faster and safer.
- A N E W O P T I C A L S TA N D A R
Nine-bladed and ten-bladed Irises
The iris on the ULTRA PRIME lenses is a new design and practically
free of hysteresis error. The 135mm focal length employs a tenbladed construction, the other focal lengths a nine-bladed design.
The contours of the aperture are better rounded, and the depiction
of unsharp light sources on the film thereby more round than
angular – i.e. more natural and aesthetic than technical.
A Concept to meet today’s Demands
Quick, sure and efficient operation is more important than ever for
today’s film productions. Lenses also play an important role
in simplifying their tasks. Some advantages of the new lenses at
a glance:
• Maximum contrast and resolution over the entire focal range.
• Uniform and constant position of the scales.
• The scales can easily and clearly be read from both sides,
as can be the focal length.
• Scales in m or ft can be easily exchanged.
• Uniform overall length of the main focal lengths.
• Uniform weight of the main focal lengths.
• Service-friendly modular design with easily exchangeable
front and back elements.
The uniform design principle also offers the rental house many
advantages: a high level of modularity simplifies service and
reduces necessary tooling equipment and spare parts stock.
R D F O R C I N E M AT O G R A P H Y
T E C H N I C A L D AT A
Distagon 2.0/10
0.35
Distagon 1.9/12
horizontal image angle
1
length
in mm
195
front diameter
in mm
156
weight
in lbs
6.4
number
of lenses
16
number
of groups
13
MTF value
10 Lp/mm at ∞
> 90 %
18 x 24
16 x 22
100.2°
90.8°
0.3
1
192
156
4.4
16
12
> 90 %
90.2°
85.2°
Distagon 1.7/14
0.22
3/
164
114
4.0
14
12
> 90 %
80.6°
75.6°
Distagon 1.7/16
0.24
3/
143
95
3.1
14
12
> 90 %
75.6°
70.8°
Distagon 1.7/20
0.28
1
143
95
2.7
12
11
> 90 %
62.8°
58.4°
Distagon 1.7/24
0.30
1
143
95
2.2
12
9
> 90 %
54.2°
50.2°
Distagon 1.7/28
0.30
1
143
95
2.2
11
10
> 90 %
46.8°
43.2°
Distagon 1.7/32
0.35
11/4
143
95
2.4
10
9
> 90 %
41.6°
38.2°
Distagon 1.7/40
0.40
11/2
143
95
2.2
9
8
> 90 %
33.2°
30.6°
Planar 1.7/50
0.60
2
143
95
2.2
8
7
> 90 %
26,2°
24.0°
Planar 1.7/65
0.65
2 1/4
143
95
2.2
7
6
> 90 %
21.0°
19.2°
Planar 1.7/85
0.90
3
143
95
2.2
8
7
> 90 %
16.5°
15,2°
Planar 1.7/100
1.00
3
143
95
2.7
8
7
> 90 %
13.7°
12.6°
Planar 1.7/135
1.50
5
170
95
3.5
8
7
> 90 %
10.2°
9.3°
Sonnar 1.8/180
2.60
8 1/2
218
114
5.7
9
7
> 90 %
7.6°
7.0°
4
4
ARNOLD & RICHTER CINETECHNIK
TÜRKENSTRASSE 89 / D-80799 MÜNCHEN
T E L E F O N + 4 9 - 8 9 - 3 8 . 0 9 - 0 / FA X + 4 9 - 8 9 - 3 8 . 0 9 -1 2 4 4
w w w. a r r i . c o m
technical data are subject to change without notice. Printed in Germany 09.95002.0
lens
closest
focus setting
meter
feet
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