Unveiling the Mystery: How Polaroid Film Packs Power Instant Cameras

Polaroid has long been synonymous with instant photography, capturing moments on film without the need for separate batteries in many of their models. But how exactly do Polaroid film packs provide the necessary power for the camera? In this article, we delve into the mechanics behind these remarkable film packs and explore their evolution over time.

How Polaroid Film Packs Charge Cameras

Yes, it is true! Each Polaroid film pack contains a battery that supplies the necessary energy for the camera's functions, such as the flash and motor. This built-in power source eliminates the need for additional batteries in many instances. However, it is important to note that some newer models or specific instant cameras may still require additional batteries for full functionality.

Original Polaroid Cameras (Mechanical)

Original Polaroid cameras operated purely mechanically. After taking a photo, you had to pull a tab on the film pack, which in turn went through high-pressure rollers to develop the picture, and then use chemical fixer to make it permanent. These cameras did not require any batteries.

Modern Polaroid Cameras (Electronic)

Most newer Polaroid cameras, especially those from the SX70 generation and onwards, have a built-in battery in the film pack. This battery powers the camera's flash motors, exposure shutter, and other functionalities. The battery, known as a "Polapulse" flat 6V battery, was specifically designed to provide the high pulse currents needed to eject the film through the pressure rollers. Although these batteries can be purchased for industrial applications, they were originally developed by Polaroid for their instant cameras.

Unnecessary Charge?

It is a common misconception that the battery in the film pack charges the camera. The camera cannot be turned on without a film pack because there is no stored charge. Instead, the film pack powers the camera's functions when installed.

The Evolution of Polaroid Film

Polaroid film has come a long way since its inception. There are two types of Polaroid film: Pack Film and Integral Film.

Pack Film

Pack Film, the original type, requires the user to wait 60 seconds after snapping the photo and then manually peel it apart to see the image. These cameras were completely mechanical and did not require batteries.

Integral Film

Integral Film, such as the ones produced by Polaroid Today (formerly known as Polaroid Originals) and Fuji Instax, has motors and electronics. A thin battery is integrated into each film pack to ensure the user has fresh film and batteries. Interestingly, the batteries in these films were designed to have a longer lifespan than initially expected, leading people to repurpose them for other uses.

Current Developments

The new Polaroid film uses different chemistry and is thicker, containing only 8 pictures per pack, as opposed to the previous 10. This minor adjustment reflects the continuous progress in instant photography technology.

Exploring the intricacies of Polaroid film packs not only enhances our understanding of photography but also demonstrates the innovative spirit that has driven this beloved brand for decades. Whether you are a seasoned collector or a curious enthusiast, the mystery behind these remarkable films is both fascinating and enlightening.