Tokina Cinema Formatt Hitech 4 x 4 Circular Polarizer Filter
The principal purpose of a polariser is to eliminate surface reflections, glare and hot spots from any light source entering the lens. It is an essential outside all purpose filter. Polariser’s create contrast between clouds and sky, and remove reflections from glass, water, foliage, and metallic surfaces. By rotating this filter, you can achieve the desired effect.
Circular Polariser’s are intended for use when cameras have internal metering systems that are susceptible to reflections. It will have the same functions as the Linear Polariser.
Formatt Hitech Polarizers are available in two types of Circular and Linear. Made from high quality Schott glass and manufactured precision bonding and polishing techniques.
Circular Polarizers have little noticeable optical downside versus at Linear Polarizer and therefore are recommended for most modern cinematography applications.
The Tokina Cinema Formatt Hitech 4×4 Circular Polarizer is made from two layers of high quality optical enhancers. The first layer is a standard high efficiency linear polarization foil that will create the usual desirable blue sky and reflection cutting effects that polarizers are known for in cinematography. The second layer is a 1/4 Wave Retarder which spins the light in a corkscrew type pattern to avoid cross polarization on cameras that have 3 CCD design, employ a video tap, or have internal variable ND type effects.
The Formatt Hitech Linear Polarizer is made from high efficiency polarization foil that creates blue skies, cuts reflections on windows and water, and is considered one of the best optical effects for outdoor cinematography. The high efficiency nature of this polarizer allows for a significant increase usability in challenging lighting conditions over other polarizers on the market. Made from Schott B270 optical glass and polished for maximum image quality when used with a matte box.