Film Techniques Explained

[Marcelo Chaplin]

Filmstake us on journeys; we become immersed in worlds beyond our own. The best films lead us to ask questions about our world as well as ourselves. However, sometimes it can be difficult to translate our reactions to film into meaningful English analysis.

When filmmakers construct their films, they combine multiple techniques together to develop meaning. Film combines visual elements with auditory elements to develop meaning. To understand how the various techniques combine to create meaning, watch the following video we have put together that lists the techniques employed in various film scenes.

Camera angles refer to the tilt of the camera in relation to the scene and the characters. Unusual camera angles can emphasise an action sequence, disorientate the audience, and suggest the relationship between characters.

Cross-cutting is an editing technique where actions are established as occurring at the same time. The camera will cut away from one action to another action elsewhere to suggest these things are occurring at the same moment.

A transition that moves between one shot and another by overlaying one shot and fading the first image out while strengthening the second shot. This can denote daydreams, memories, the passing of time, or signify phone conversations and long-distance communication.

A dolly is a wheeled cart that the camera and operator are seated on. A dolly shot is a shot where the dolly is pushed along to move with the action. This is similar to a tracking shot, but without the tracks so that the camera can have a broader range of motion.

A type of cut where the shot of a character looking at something cuts to a shot of the thing they were looking at the same level. This type of cut is used to show the audience what they were looking at.

Similar to other editing wipes, this is a type of transition where the screen irises closed around a particular thing on screen. These can be used to signify daydreams, provide a dramatic transition, or signify the end of a scene.

A cut that moves fractionally forward in time. These shots focus on the same subject but either use a different angle or have the subject in a different position to illustrate that time has moved forward in time. Jump cuts are usually used to show time passing forward.

A montage is a type of editing sequence where a series of shots play rapidly to create a narrative. Often a montage will be accompanied by a unifying piece of music to convey the dominant mood connected with the sequence.

A type of sequence shot or tracking shot where the camera follows a character by following them and shooting over their shoulder. Like a Point of View shot, an over the shoulder shot focalises (that is, focuses in on) on the characters experience.

A sequence shot is a single long take shows a series of actions happening one after another within the same shot. Sequence shots are occasionally called long takes and one-shots. Sequence shots are very hard to do and can develop quite a lot of meaning.

An object used to suggest ideas in addition to, or beyond, their literal sense. For example, the glass slipper in Cinderella symbolises the opportunity that Cinderella has to live a different life. Watch films carefully to spot symbols and their potential meaning to the plot. If a symbol recurs throughout the film it is a motif.

Movement can be used extensively by film makers to make meaning. It is how a scene is put together to produce an image. A famous example of this, which uses "dance" extensively to communicate meaning and emotion, is the film, West Side Story.

To achieve the results mentioned above, a Lighting Director may use a number or combination of Video Lights. These may include the Redhead or Open-face unit, The Fresnel Light, which gives you a little more control over the spill, or The Dedolight, which provides a more efficient light output and a beam which is easier to control.[1]

In motion picture and television production, a sound effect is a sound recorded and presented to make a specific storytelling or creative point, without the use of dialogue or music. The term often refers to a process, applied to a recording, without necessarily referring to the recording itself. In professional motion picture and television production, the segregations between recordings of dialogue, music, and sound effects can be quite distinct, and it is important to understand that in such contexts, dialogue, and music recordings are never referred to as sound effects, though the processes applied to them, such as reverberation or flanging, often are. Necessary incidental units of sound, footsteps, keys, a polishing sound, are created in a Foley studio.

In traditional linear movies, the author can carefully construct the plot, roles, and characters to achieve a specific effect on the audience. Interactivity, however, introduces non-linearity into the movie, such that the author no longer has complete control over the story, but must now share control with the viewer. There is an inevitable trade-off between the desire of the viewer for freedom to experience the movie in different ways, and the desire of the author to employ specialized techniques to control the presentation of the story. Computer technology is required to create the illusion of freedom for the viewer, while providing familiar, as well as, new cinematic techniques to the author.

Thin films are an inseparable part of modern technology. When deposited on the surface of an object, thin film coatings can alter its qualities, for example, increasing durability, changing electric conductivity, or improving optical properties.

The history of thin solid films begins in antiquity [1], with metallic films (usually gold platings) used on various artefacts for decorative and protective purposes. Today, many industries rely on precise atomic layer deposition to produce high-purity thin films.

The thin film deposition process may vary depending on the techniques used, but all the methods we discuss involve placing a thin layer of deposited film on the substrate surface within a vacuum chamber.

The first creation of metal films by chemical vapour deposition took place in the mid-17th century. Experiments in oxide deposition began circa 1760, while sputter deposition took its first steps in the 1850s [2].

By the 1930s, manufacturers already used early-stage thin films for high-reflectivity mirrors. The 1960s technologies of ultra-high vacuum and in situ electron microscopy enabled the creation of more advanced, pure, and uniform thin films. In 1970, Peter J. Clarke launched the first sputter gun that created atomic-scale films by using ion and electron collisions.

Advanced technologies, such as atomic resolution surface imaging, allowed the progress of the thin film industry as we know it today. Methods for depositing thin films, such as sputtering-based methods, continue to grow and develop into new applications.

Physical vapour deposition (PVD), which involves the vaporisation and depositing of solid material on a substrate, encompasses a range of methods from a basic evaporation process to magnetron sputtering and pulsed laser deposition [3].

Many advanced thin-film devices, like the HEX Series by Korvus Technology, use physical deposition methods. PVD, in particular sputtering, allows manufacturers to create highly precise and uniform thin films.

In contrast, chemical vapour deposition relies on a reaction between precursors in the deposition chamber. CVD has several common uses, like creating Si thin films. One drawback of CVD is the need for extra-high temperatures to incite the process.

Deposition techniques fall into two main groups: physical vapour deposition and chemical deposition. Physical Vapour Deposition (PVD) and Chemical Vapour Deposition (CVD) differ fundamentally in their deposition methods. PVD involves the physical transfer of materials under vacuum, where vaporised materials condense onto the substrate, making it ideal for metals and alloys. In contrast, CVD utilises chemical reactions at elevated temperatures to deposit materials from a vapour phase, suitable for complex compounds and polymers. PVD offers precise control over thickness and purity, whereas CVD excels in achieving uniform coatings over intricate shapes. The choice between PVD and CVD depends on the required material properties and the specific demands of the application.

Sputtering is a physical phenomenon leveraged by thin film deposition to expel microscopic particles of solid materials from their surface. This ejection is achieved by attacking the solid material with energetic particles. The particles are then deposited in the target materials forming the thin film layer.

Like other deposition methods, sputtering takes place in a chamber with a vacuum pump constantly working to remove air. The vacuum is a crucial condition for this process, which occurs naturally in outer space.

Electron beam evaporation is a process where a focused electron beam vaporises a target material, causing it to condense and deposit material onto a substrate. This technique is preferred over thermal evaporation due to its precise control over the deposition rate and film thickness. It is particularly beneficial for materials with high melting points, ensuring the deposited material maintains purity and quality without substrate contamination. Thus, electron beam evaporation is selected for its superior efficiency and effectiveness in producing high-quality thin films.

Organic evaporation involves heating organic materials until they vaporise, allowing the material to be deposited onto a substrate. This method is particularly suited for organic compounds that are sensitive to high temperatures or electron beam exposure. Low-temperature evaporation is chosen for its ability to gently deposit thin films of organic materials, such as polymers and organic semiconductors, without altering their chemical structure. It ensures the integrity of the material to be deposited, making it ideal for applications in organic electronics and bio-compatible coatings.

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