OTA Orion StarMax 90mm EQ Orion Telescopes & Binoculars · StarMax 90mm EQ Key specifications Aperture90 mm Focal length1250 mm Focal ratiof/13.9 Optical designMaksutov-Cassegrain Weight1.8 kg About 90mm f/13.9 Maksutov-Cassegrain on an EQ mount; compact long-focus scope.
