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70-mm-film
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The exclusive 70 mm premium
format
requires the best possible lens quality
The film image area on 70 mm film can be
up to 10 times larger and can show up to 10 times as many details –
provided that the projection lens offers such a high resolving power.
The Super-Cinelux 70 lenses with six, seven and more lens elements are
optimized for this demand and for the largest screen formats. The
image field curvature is adapted to the film curvature in the projector
and provides the highest possible sharpness, which is also very
uniform, over the full format up into the image corners. A further
increase in the
MTF values has been made possible
by the use of high-quality optical glass. An innovative optical design
reduces the distortion and the lateral chromatic aberration.
The Super-Cinelux 70 lenses have a mount
diameter of 70.65 mm and are often used with a 4" special tube (101.6
mm) – see
Accessories.
The main area of application for these lenses can be found in theme
parks, attraction cinemas and planetariums. Their
exceptional imaging also makes them a popular choice for simulations
and for professional medium-size transparency projections.
In the longest focal length region of
more than 100 mm, this lens series is supplemented by the
Cinelux-Ultra
lenses which are available for 70 mm film in the focal lengths 105
to 150 mm with fine focal length steps of 5 mm - see table below.
Catalog page (pdf: 600kB)
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Catalog
pdf
(1,8 MB) |
Technical Information
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| k / f ' |
D1 |
D2 |
D3 |
L1 |
L2 |
L3 |
s' A
∞ |
s' F' |
MTF |
| 2,8 /
29 |
98 |
57 |
70,65 |
88,5 |
68,5 |
28,5 |
76,9 |
49,93 |
 |
| 2,0 /
40 |
98 |
57 |
70,65 |
114,9 |
94,9 |
35,9 |
101 |
67,63 |
 |
| 2,8 /
42,5 |
98 |
57 |
70,65 |
115 |
95 |
31,6 |
101 |
72,05 |
 |
| 2,8 /
46 |
98 |
57 |
70,65 |
123,5 |
103,5 |
35 |
101 |
70,15 |
 |
| 2,0 /
50 |
98 |
57 |
70,65 |
112,4 |
92,4 |
33,4 |
101 |
70,10 |
 |
| 2,4 /
55 |
98 |
60,5 |
70,65 |
111,5 |
91,5 |
25,4 |
101 |
77,27 |
 |
| 2,6 /
57,5 |
98 |
60,5 |
70,65 |
111,5 |
91,5 |
21,5 |
101 |
81,46 |
 |
| 2,0 /
60 |
70,65 |
48 |
|
102,3 |
42,3 |
|
101 |
|
|
| 2,0 /
65 |
70,65 |
50 |
|
111 |
39 |
|
101 |
|
|
| 2,0 /
70 |
70,65 |
50 |
|
117 |
34 |
|
101 |
|
|
| 2,0 /
75 |
70,65 |
50 |
|
122 |
28,5 |
|
101 |
|
|
| 2,0 /
80 |
70,65 |
50 |
|
82 |
46 |
|
101 |
|
|
| 2,0 /
85 |
70,65 |
50 |
|
79 |
43 |
|
101 |
|
|
| 2,0 /
90 |
70,65 |
48 |
|
91 |
39 |
|
101 |
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| 2,0 /
95 |
70,65 |
50 |
|
92 |
36 |
|
101 |
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| 2,0 /
100 |
70,65 |
50 |
|
88 |
32 |
|
101 |
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All units in mm
f ' - Focal
length,
D1 ... D3 - Diameter, L1 ... L3 - Length,
s 'A ∞ -
Flange focal distance, s' F' - Back focal length,
MTF - Modulation Transfer Function |
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