Polaroid (polarizer) Polaroid (polarizer) Polaroid is a type of synthetic plastic sheet which is used as a polarizer or polarizing filter. A trademark of the Polaroid Corporation, the term has since entered common use. The original material, patented in 1929 and further developed in 1932 by Edwin H. Land, consists of many microscopic crystals of iodoquinine sulphate (herapathite) embedded in a transparent nitrocellulose polymer film. The needle-like crystals are aligned during manufacture of the film by stretching or by applying electric or magnetic fields. With the crystals aligned, the sheet is dichroic: it tends to absorb light which is polarized parallel to
Polaroid Originals in 2018, the company released a version with a built-in viewfinder that makes framing more accurate, the OneStep 2 Viewfinder. In September 2018, Polaroid Originals introduced the Polaroid OneStep+ instant film camera that uses i-Type film and 600 film. The OneStep+ has built-in Bluetooth wireless technology that allows the camera to be paired with the Polaroid Originals app on an iOS or Android smartphone or tablet. This enables six new features: remote trigger, double exposure, light painting, self timer (with up to a 12 s countdown), manual mode (controlling aperture, shutter speed, flash intensity and photos ejection) and noise trigger.