Kaiser Fototechnik has just introduced the Vivicap, a small accessory that helps make custom white balance quick and easy. The Vivicap white balance filters concentrate and filter incident light resulting in a neutral grey area with uniform light distribution facing the lens. This effect is achieved by a special surface structure with microprisms. The basic operation is quite easy: mount the Vivicap in front of the lens, direct it at the light source, take a custom white balance reading and store the value. Then remove the Vivicap and shoot using the stored value as a reference. The Vivicap, which can also serve as a lens cap, has two handle bars that make it easy to attach it even when a lens hood is mounted. Available in seven sizes ranging from 52mm to 77mm, the Vivicap is priced at €24.90 to €29.90.