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70-mm-film
 

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.
 

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Technical Information

Lenses 6 up tp 12  
 
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
2,0 / 95 70,65 50 92 36 101
2,0 / 100 70,65 50 88 32 101

 
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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