Walter benjamin: The Work of Art in the Age of Mechanical Reproduction (1936): XI
The shooting of a film, especially of a sound film, affords a spectacle unimaginable anywhere at any time before this. It presents a process in which it is impossible to assign to a spectator a viewpoint which would exclude from the actual scene such extraneous accessories as camera equipment, lighting machinery, staff assistants, etc. - unless his eye were on a line parallel with the lens. This circumstance, more than any other, renders superficial and insignificant any possible similarity between a scene in the studio and one on the stage. In the theatre one is well aware of the place from which the play cannot immediately be detected as illusionary. There is no such place for the movie scene that is being shot. Its illusionary nature is that of the second degree, the result of cutting. That is to say, in the studio the mechanical equipment has penetrated so deeply into reality that its pure aspect freed from the foreign substance of equipment is the result of a special procedure, namely, the shooting by the specially adjusted camera and the mounting of the shot together with other similar ones. The equipment-free aspect of reality here has become the height of artifice; the sight of immediate reality has become an orchid in the land of technology.
Even more revealing is the comparison of these circumstances, which differ so much from those of the theatre, with the situation in painting. Here the question is: How does the cameraman compare with the painter? To answer this we take recourse to an analogy with a surgical operation. The surgeon represents the polar opposite of the magician. The magician heals a sick person by laying on of hands; the surgeon cuts into the patient's body. The magician maintains the natural distance between the patient and himself; though he reduces it very slightly by the laying on of hands, he greatly increases it by virtue of his authority. The surgeon does exactly the reverse; he greatly diminishes the distance between himself and the patient by penetrating into the patients's body, and increases it but little by caution with which his hand moves among the organs. In short, in contrast to the magician - who is still hidden in the medical practitioner - the surgeon at the decisive moment abstains from facing the patient man to man; rather, it is through the operation that he penetrates into him.
Magician and surgeon compare to painter and cameraman. The painter maintains in his work a natural distance from reality, the cameraman penetrates deeply into its web.* There is a tremendous difference between the pictures they obtain. That of the painter is a total one, that of the cameraman consists of multiple fragments which are assembled under a new law. Thus, for contemporary man the representation of reality by the film is incomparably more significant than that of the painter, since it offers, precisely because of the thoroughgoing permeation of reality with mechanical equipment, an aspect of reality which is free of all equipment. And that is what one is entitled to ask from a work of art.
* The boldness of the cameraman is indeed comparable to that of the surgeon. Luc Durtain lists among specific technical sleights of hand those 'which are required in surgery in the case of certain difficult operations. I choose as an example a case of oto-rhinolaryngology; ... the so-called endonasal perspective procedure; or I refer to the acrobatic tricks of larynx surely which have to be performed following the reversed picture in the laryngoscope. I might also speak of ear surgery which suggests the precision work of watchmakers. What range of the most subtle muscular acrobatics is required from the man who wants to repair or save the human body! We have only to think of the couching of a cataract where there is virtually a debate of steel with nearly fluid tissue, or of the major abdominal operations (laparotomy)'. - Luc Durtain, op. cit.