Optical System: Greenough.
Viewing Head: Binocular viewing head, inclined 45?. Interpupillary distance adjustment 54-76mm, diopter adjustment +/- 5.
Eyepieces: WF15x/16mm eyepieces with built in diopter adjustments & eyeguards.
Objectives: Zoom magnification objective 0.67x ? 4.5x (10x -67.5x with 15x eyepieces).
Focusing System: Dual focusing knobs.
Stand: Gem Stand with tiltable, 325? rotatable base, darkfield halogen illuminator with sliding baffle and iris diaphragm, overhead fluorescent illuminator, stage mounted variable LED light guide for Gem Stand.
Accessories: Dust cover and instruction manual.
Certification: ISO 9001: 2018 and ISO 14001: 2018; UL approved.
Warranty: 5-year limited warranty for parts, labor and electronic components; 1-year warranty on LED bulb.”