The first, simple optical printers were constructed early in the 1920s.

During the 1980s, minicomputers were used to control the optical printer.

Next, a three-layer sandwich of film is run through an optical printer.

An important innovation in special-effects photography was the development of the optical printer.

It can either be an in-camera effect or an effect produced with the use of an optical printer.

For these, an optical printer was used to copy these images onto safety film stock, a project that began in 1947 and continues today.

For this reason, shots intended to be manipulated via optical printer were often shot on larger film formats than the rest of the project.

In film, this effect is usually created with an optical printer by controlled double exposure from frame to frame.

Ideally, the audience in a theater should not be able to notice any optical printers work, but this is not always the case.

This arrangement came to be called a "projection printer", and eventually an "optical printer".

An optical printer is a device consisting of one or more film projectors mechanically linked to a movie camera.

There is more room for the optical printer, which previously had been sitting largely unused in an equipment storage room.

Traditionally, frames were duplicated on an optical printer.

An optical printer is a device.

Essentially, an optical printer is a projector aiming into a camera lens, and it was developed to make copies of films for distribution.

An optical printer with two projectors, a film camera and a 'beam splitter' combines the images together one frame at a time.

The optical printer is used for making special effects for motion pictures, or for copying and restoring old film material.

He suggested inserting one frame that was much lighter than the others while printing the film on an optical printer, making the light seem to vibrate.

This second film element is used to create a matte, as well as a counter-matte, for use during compositing on an optical printer.

The image was then run through an optical printer where the edges were vignetted and a twisted linear distortion was introduced.

With pre-digital matting, the several extra passes through the optical printer would degrade the film quality and increase the probability of edge artifacts.

This was augmented with phasing of the imagery, changing the area of view, and other sophisticated uses of the optical printer.

Optical printers have various industrial uses, but one distinct advantage for film artists is that they allow them to manipulate live-action images the way animators do.

Optical printer "The Hansard Process"

When fitted to an optical printer, the Micro Panatar could create "flat" (nonanamorphic) prints from anamorphic negatives.