What's the difference between Chinese giant screen and imax?

1. The difference between developers is different:

1. The usual IMAX screen was developed by IMAX Group of Canada. The standard screen size is 22 meters wide and 16 meters high, but it can be played on a larger screen. Up to now, larger IMAX screens are constantly appearing, as shown in figure 1.

Legend 1:

2. However, DMAX is independently developed in China, and the giant screen of DMAX is jointly developed by China Film Science and Technology Research Institute and China Film Co., Ltd. Although it is not as big as IMAX, it is much larger than the ordinary screen, as shown in Figure 2.

Legend 2:

Second, the difference of image quality:

1. Compared with IMAX, Chinese giant screen DMAX has lower cost and higher brightness. China's giant screen DMAX adopts high-brightness dual-camera projection, and the screen brightness is improved by nearly 20% compared with IMAX. Even in the case that the overall tone of the 3D movie screen is dark or there is a night scene, it has a good performance. However, the DMAX dual-camera projection device is still a 2K machine. Although it will be upgraded to 4K, the resolution of real IMAX movies is above 6K, and the picture quality is obviously different.

2.IMAX scans and prints ordinary 35mm film onto 70mm film by exclusive technology through digital original copy conversion technology, and the upgraded picture is absolutely high in fineness and quality. DMAX dual camera projection device or 2K machine. Although it will be upgraded to 4K, the resolution of real IMAX movies is above 6K, and the picture quality is obviously different.

Third, the fare difference:

1, IMAX screens are not allowed to show ordinary movies, so the ticket price is generally high, and the ticket price of IMAX 3D is as high as 150 yuan to 180 yuan.

2.DMAX screen can attract funds by showing ordinary films, while "China Giant Screen 3D" does not make profits by charging high technical patent fees, thus ensuring the interests of cinemas, cinemas and audiences. Due to cost reasons, DMAX fares are also more affordable than IMAX. For example, ordinary 3D movie fares range from 70 yuan to 80 yuan, and DMAX 3D fares range from 90 yuan 100 yuan.

Extended data:

Why the DMAX screen appears:

First, make up for the shortcomings of IMAX movies.

One of the main selling points of 1 and IMAX is to show it with 70mm high-speed film, which makes it more detailed than the traditional 35mm film even on a huge screen.

2. Because the shooting cost of 70mm film is too high and there are too few film sources, IMAX projection system has developed DMR conversion technology, which can scan and develop ordinary 35mm film onto 70mm film through exclusive technology. This method was tried at the beginning of Tangshan earthquake and great rejuvenation.

3. The 3D trend led by Avatar is booming in China, but the maximum number of IMAX movies that can enter the China market every year is 10. The screen is large enough and there is no film source obstacle, which is made up by DMAX.

Second, the cost dispute: IMAX investment has high return and slow DMAX fare is more favorable.

1, the word "shanzhai" means the way to save money. In addition to making better use of 3D blockbusters that can't be shown in IMAX Hall, increasing revenue and reducing expenditure is actually an important driving force for the development of DMAX.

2. "The projector of DMAX is about 1 ten thousand, and the cost is110 of IMAX. Projection technology is universal, as long as it is a digital copy, it can be placed in the DMAX hall. " Liu Hui said. Cost reduction, for the audience, means cheaper fares.

Three. abstract

1, there is a sentence in the official publicity materials of DMAX: "The creation of this technology fills the gap in China's giant screen projection, and once again confirms the spirit of China's film technology to keep pace with the times and be brave in innovation". Some people laugh at this as a sublimation of the "cottage" spirit. The emergence of DMAX is more due to commercial games, and its excellent performance reflects the joint debugging ability of domestic teams rather than original technology. ?

2. However, what is worth the audience's struggle is whether the acousto-optic effect is worth the fare. One more choice is a good thing. We are more concerned about whether DMAX's promotion path can always maintain the high-end quality of hardware.

Reference 1: Baidu Encyclopedia -dmax

Reference 2: Baidu Encyclopedia -IMAX