- The BR3088F series includes many professional features while
remaining easy to use and maintain for secondary schools, technical
institutes and hobbyists. The eyepiece is locked-in to prevent
classroom tampering. 4x, 10x and 40x R objectives supplied. Viewing
bodies are inclined 45° and rotatable 360°. Built in 4 watt fluorescent
illumination, with a 10,000 hour rated bulb life.