Polaroid T-64 warranty Reciprocity Law Failure, Spectral Sensitivity, Reciprocity law failure

Models: T-64

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Film Data Sheet

Technical Data

T-64 Tungsten

Instant Color Peel-Apart Films

Reciprocity law failure

A wide range of shutter speeds can be used without loss of film speed. For longer exposure times, some exposure compensation is suggested.

 

 

 

Reciprocity Law Failure

 

Blue

 

 

 

 

 

 

 

 

1.8

 

 

 

 

 

Green

 

 

 

 

 

 

Red

Exposure

1.6

 

 

 

 

 

 

 

 

 

 

 

1.4

 

 

 

 

 

 

1.2

 

 

 

 

 

 

1.0

 

 

 

 

 

 

Log

 

 

 

 

 

 

.8

 

 

 

 

 

 

Relative

.6

 

 

 

 

 

 

.4

 

 

 

 

 

 

.2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

.0001"

.001"

.01"

.1"

1"

10"

100"

Exposure Time (seconds)

Spectral Sensitivity

 

1 0 0 0

 

 

 

 

 

 

Blue

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Green

 

 

 

 

 

 

 

 

 

Red

Sensitivity

1 0

0

 

 

 

 

 

 

 

1 0

 

 

 

 

 

 

 

Spectral

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0

 

 

 

 

 

 

 

 

 

 

3 5 0

4 0 0

4 5 0

5 0 0

5 5 0

6 0 0

6 5 0

7 0 0

Wavelength (nm)

Shutter

1/4000 to

1/15 to 4

8

16

32

64

Speed

1/30

 

 

 

 

 

 

 

 

 

 

 

 

Exposure

Not

+2/3 stop

None

+1/3 stop

+1/3 stop

+1/3 stop

Adjustment

recommended

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Color

-

None

None

None

CC05B

CC05B

Compensating

 

 

 

 

 

 

Filter

 

 

 

 

 

 

 

 

 

 

 

 

 

Reciprocity: The ability of the film to respond in a constant manner to a constant exposure (light intensity x time). Reciprocity failure occurs during very long or very short exposures, requiring the photographer to increase exposure. Spectral Sensitivity: Shows the equivalent energy needed at each wavelength in order to activate the emulsion so that it produces a neutral density of .75.

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Polaroid T-64 warranty Reciprocity Law Failure, Spectral Sensitivity, Reciprocity law failure

T-64 specifications

The Polaroid T-64 is a remarkable instant film used primarily in the Polaroid photographic system, introduced in the mid-1960s. Known for its vibrant color reproduction and instant processing capabilities, the T-64 film quickly became a favorite among photographers, artists, and enthusiasts alike.

One of the defining features of the Polaroid T-64 is its ability to deliver high-quality images with rich color saturation. The film's color emulsions were designed to capture a wide gamut of hues, making it ideal for a variety of photography genres, from portraiture to landscape. The prints produced by T-64 film are characterized by their sharpness and clarity, owing to the advanced film processing technology used in its manufacturing.

A significant technological advancement of the Polaroid T-64 is its use of a patented integral film technology. This means that the film cartridge itself contains all the necessary chemicals for developing the image, eliminating the need for additional darkroom processes. After exposure, the film develops automatically, producing a finished print ready for viewing in just a few minutes. This unique feature revolutionized photography by allowing instant gratification for both amateur and professional photographers.

Another notable characteristic of the T-64 film is its durability. The prints are coated with a protective layer that not only preserves the image but also resists fading and environmental damage over time. This makes the T-64 particularly suitable for archivally important photographs, as well as for everyday use in various settings.

In terms of shooting dynamics, the Polaroid T-64 film has a relatively high ISO rating, typically around 100, allowing photographers to capture images in moderate lighting conditions without significant grain. This versatility made it a popular choice for both indoor and outdoor photography.

The T-64 film was compatible with several Polaroid camera models, further enhancing its accessibility. The ease of use and straightforward mechanics of Polaroid cameras meant that even novices could achieve compelling photographic results with T-64 film.

Despite its popularity, Polaroid discontinued the T-64 film in the early 2000s, a decision that sparked nostalgia and demand for instant film among fans of traditional photography. Nevertheless, the legacy of the Polaroid T-64 lives on, celebrated for its significant contribution to the evolution of instant photography and its iconic status within visual culture. Today, the Polaroid brand continues to innovate, drawing inspiration from its rich history while embracing new technologies and artistic approaches.