Film is the combination of sound and light art, the pursuit of visual and auditory experience.

The film copy (which can be understood as the format in which a film is released) determines the picture quality, sound and other experience ceilings of a film, but the exact level of effect seen in the cinema is determined by both the projection system and the sound recovery system.

In a projection system, the screen and the projector are the two keys.

The former is the "front" of the cinema, we usually say the giant screen, is the wide screen. The horizontal visual field of the human eye is about 160-180 degrees, and the widescreen screen can fill the entire visual field of the audience, making people forget the existence of the edge of the screen, thus enhancing the immersion of watching movies. Big screen, need to match good picture quality is to enjoy, otherwise it is a disaster. The quality of the picture depends on the projector hidden in the back of the cinema.

Until 2000 years ago, film was still the dominant feature of film projection. The development of digital projectors not only replaced film, but also promoted a series of technical indicators such as resolution, frame rate, brightness, contrast and 3D effect. Resolution affects the clarity of the film picture. High-resolution projection supports 4K resolution at most. However, due to the high cost and the difficulty in identifying the advantages of 4K when it is far away from the screen, "true 4K movie" which adopts 4K from shooting to screening is still a few.

In a movie frame, a still image is called a frame, and the frame rate is the number of frames of the picture that are refreshed per second. The higher the frame count, the smoother and sharper the image will appear on the screen. In 2016, director Ang Lee made Billy Lynn's Long Halftime Walk in the format of "120 frames +4K+3D" for the first time. In recent years, Chinese films such as Detective Dee and The Four Heavenly Kings and Champion have explored high frame rate production. Like high resolution, high frame rates are expensive and hard to distinguish with the naked eye. Brightness, by contrast, has a more direct effect on the viewing experience.

In the traditional digital cinema, xenon lamp light source is the mainstream light source, but xenon lamp is easy to aging, after a few years will reduce the brightness of the projection, play a lower brightness standard of 3D movies often dim picture, 3D version of "Dune" because of dark and halo has been resisted by the audience.

The appearance of laser projector solves the problem of brightness. Want to ensure the brightness of the picture, when choosing the cinema can use laser light source superimposed other indicators, such as "4K laser hall" "giant screen laser hall", when watching 3D movies, especially recommended laser hall.

When choosing a cinema, it's not enough to look at the projection system. The sound of the film is also important. From multi-channel surround sound to panoramic sound and immersive sound, the fidelity of the sound and the restoration of the sense of orientation are significantly improved. Friendly tip, in the Panorama Hall to watch horror, scare effect doubled. Whether to pursue further 4D effects is up to one's taste. Generally speaking, 4D hall is not recommended for the first time to watch movies. It is easy to be disturbed by sudden seat vibration and spray. Before you can see who the villain is, you will be hit by the cinema device first.

IMAX and Dolby cinemas are the most recommended hexagonal warriors among all the high-spec cinemas, not only with first-class picture quality and sound quality, but also with special cinema design with unified standards and timely maintenance. For example, Dolby Cinema, the main is "Dolby panoramic sound + Dolby Vision + full set of cinema design" a set of combination. IMAX's best shot is its super-large screens and unique filming standards. Unlike Dolby, which focuses on improving the picture quality in the film's later stages, IMAX has established a complete set of procedures from pre-shooting, post-production to the screening environment. It should be noted that the common Dolby Hall is generally Dolby panoramic sound hall, less Dolby vision of the blessing, and the real Dolby cinema is completely different.

It's easy to verify the Dolby Cinema. Look for the exclusive sign of "DOLBY CINEMA" at the entrance of the cinema, and there are iconic blue light belts on both sides of the interior of the cinema. The key point is that "every seat is a VIP view" of the high-end seats in the official publicity, which is really comfortable to sit in.

CGS China Giant Screen and CINITY are the most common high-end cinemas in China.

CGS Chinese giant screen standard IMAX production, the official propaganda screen size, brightness, resolution and other dimensions are not inferior to IMAX, but the actual configuration is not uniform, easy to step on the thunder. In contrast, CINITY's reputation is much better than CGS China Giant Screen. CINITY, without the big screen, is an overachiever in a particular subject, beating the high frame rate circuit. For the most part, few movies reach the high spec of 120 frames, so it's hard to take advantage of CINITY. If you watch an ordinary movie, the immersive effect of CINITY is not as good as that of a large-screen theater because Cinity does not have a large screen.

Over the past half century, IMAX has experienced the era of film IMAX, digital IMAX and laser IMAX. Laser IMAX is the best in commercial theaters, but most theaters are still traditional digital IMAX.

If you'd like to know more about the type of IMAX you're in, we've got a live update of the Global Distribution of IMAX and Other Theaters, which details the distribution of high-tech theaters by province and city in China.Here, we'll focus on the distribution of IMAX and Dolby theaters.

Currently, 85 percent of IMAX theaters in China are digital IMAX systems, with more than 100 laser IMAX theaters, and the only six film IMAX theaters are educational theaters that do not show commercial films.

What if there are no IMAX or Dolby theaters in your city?

In short, it's to find theaters that are close to their core technology.

Giant screen, laser, 4K is the guarantee of picture effect, can choose a few choose a few; Dolby Panoramic sound, DTS:X ambient sound is the current sound quality ceiling, with "giant screen laser 4K" any of the experience can be doubled.

For low-cost literary films and ordinary commercial films, the visual effect limit is not high, so there is no need to worry too much about the technical standards of the cinema. But for a special blockbusters, it is best to choose a matching format, black technology alongside the cinema, in addition to your general no other problems.

In an age of streaming and home projectors, it is IMAX and Dolby cinemas that defend the dignity of cinema.

Only in the cinema can you truly immerse yourself in the full aesthetic of cinema, and no new medium can change this. John Naisbitt predicted in Megatrends that people would one day return to the cinema because they needed a short escape, a short spiritual orgy in another world.