17 Facts About Photographic film

Panchromatic Photographic film renders all colors in shades of gray approximately matching their subjective brightness.

Color Photographic film has at least three sensitive layers, incorporating different combinations of sensitizing dyes.

Color print Photographic film generally has greater exposure latitude than other types of Photographic film.

Additionally, because print Photographic film must be printed to be viewed, after-the-fact corrections for imperfect exposure are possible during the printing process.

The Photographic film requires a minimum amount of light before it begins to expose, and then responds by progressive darkening over a wide dynamic range of exposure until all of the grains are exposed, and the Photographic film achieves its maximum optical density.

Related searches

PET Photographic film bases are often dyed, specially because PET can serve as a light pipe; black and white Photographic film bases tend to have a higher level of dying applied to them.

The Photographic film base needs to be transparent but with some density, perfectly flat, insensitive to light, chemically stable, resistant to tearing and strong enough to be handled manually and by camera mechanisms and Photographic film processing equipment, while being chemically resistant to moisture and the chemicals used during processing without losing strength, flexibility or changing in size.

ISO 25 Photographic film is very "slow", as it requires much more exposure to produce a usable image than "fast" ISO 800 Photographic film.

The benefit of slower Photographic film is that it usually has finer grain and better color rendition than fast Photographic film.

Against this, photographic film can be made with a higher spatial resolution than any other type of imaging detector, and, because of its logarithmic response to light, has a wider dynamic range than most digital detectors.

The second part is a barcode on the edge of the Photographic film, used during processing, which indicates the image Photographic film type, manufacturer, frame number and synchronizes the position of the frame.

Glass plates continued to be used long after the introduction of Photographic film, and were used for astrophotography and electron micrography until the early 2000s, when they were supplanted by digital recording methods.

Panchromatic emulsions on a Photographic film base were not commercially available until the 1910s and did not come into general use until much later.

Kodak's popular Verichrome black-and-white snapshot Photographic film, introduced in 1931, remained a red-insensitive orthochromatic product until 1956, when it was replaced by Verichrome Pan.

Consequently photographers demanding higher quality in sectors such as weddings, portraiture and fashion where medium format Photographic film predominated were the last to switch once resolution began to reach acceptable levels with the advent of 'full frame' sensors, 'digital backs' and medium format digital cameras.

Similar patterns were experienced by other manufacturers, varying by market exposure, with global Photographic film sales estimated at 900 million rolls in 1999 declining to only 5 million rolls by 2009.

Guide on a roll of 120 Photographic film showing how many exposures it can take with different frame sizes.