Sphere measurement d/8° Sphere measurement meters measure the light reflected in one direction from the specimen, which is subjected to scattered lighting. Measurement is carried out at a 8° vertical angle. The advantage is the possibility to attach a so-called gloss separator to a further opening of the sphere, which avoids lighting of the specimen under an 8° thus eliminating the gloss. Measurement with gloss separators is only useful if the specimen show high gloss. When carrying out measurements with this sphere geometry the surface structure of the specimen does not play a very important role, i.e. measurement values only change to a minor extent when measuring specimen with different surface structures (e.g. textiles, rough plastics etc.).