The 4 x 4" Graduated Straw 2 Filter from Formatt is one of the most widely used categories of filters. It enhances reality, adding a touch of subtlety or drama to the image.
The Graduated Straw 2 filter produces a vibrant gold/yellow warming color. It differs from the Graduated Skyfire filter that is intended to be used for sunsets and landscapes where intense color is desired. The Grade 2 adds significant warmth to an image and changes to an intense gold tone as the grade increases.
Often it is necessary or desirable to balance the light intensity in one part of a scene with another. This is especially true in situations where you don't have total light control, as in bright contrasty landscapes.
Sometimes it is also desirable to add color to part of the photograph. For example, to add blue to only the sky. Formatt Color Graduated filters are half-color, half-clear, with a graduated transition for blending into the scene. They are available in an array of colors. Soft/hard indicates the degree of transition. Horizontal/vertical indicates the direction of the transition.
Formatt square and rectangular filters are made from sheets of CR39 Resin sandwiched between two sheets of high-quality Schott glass. The reputation of Schott glass precedes itself and is world renowned. The dyes used are carefully manufactured and controlled and when sealed between the glass, become color consistent filter to filter. For the photographer/videographer/cinematographer, this means you can change filters from day to day or shot to shot knowing that your color consistency will be maintained.