How is the optical system of the ABI PRISM® 7000 SDS instrument designed?
FAQ ID -1523

In contrast to the 7900HT and the 7700 instruments which use argon lasers as a light source, the ABI PRISM® 7000 SDS instrument works with a Tungsten halogen lamp for excitation of the fluorescent dyes. Detection of individual fluorescent signals is mediated by a four filter system.