The Tiffen 4 x 4" Sepia 1 solid colour filter adds a warm pale green-brown colouration across the entire image to create a nostalgic and vintage appearance. The solid colour design makes this filter well suited to be combined with other filters for additional control over the image appearance. The colour density 1 provides less sepia colouration than the density 2 filter.nnThis filter is manufactured using ColorCore technology, a process that involves laminating the filter substrate between 2 pieces of optical glass and polishing it to a tolerance of 1/10,000th of an inch. It measures 4 x 4" / 101.6 x 101.6 mm.nnnFeatures:nn- The sepia colour filter provides a warm green-brown colouration and gives your images a vintage look.n- Solid colour filters apply density uniformly across the entire image plane to achieve a smooth and creative effect.nnnSpecifications:nn- Type: Solid sepia colourn- Size: 4 x 4" / 101.6 x 101.6 mm (0.2" / 4 mm thick)n- Grade: Density 1n- Effect: Used to give photographs a dramatic coloured effectn- Construction: ColorCore glass