This is a 3.5X-90X zoom stereo trinocular microscope. This trinocular microscopy comes with super widefield optics and versatile illumination system that provides both incident (top) and transmitted (bottom) lights. The incident light is used for the observation of three-dimensional objects due to shining down onto the objects. The transmitted light is used for the inspection of the objects that allow light to get through them like diamonds. With the 0.5X barlow lens, the working distance can be as long as 6-1/2'' (165mm), and the field of view can be as large as 2-3/8'' (60mm) in diameters. It easy to connect USB digital camera (sold separately) to record what you see in the microscope and saving it into your computer as a picture or a video. The stereo microscope is useful for many applications (biological research laboratories, engravers, watchmakers, gemologists, collectors, jewelers and anyone in electronic industry).

Summary of Features:

• Head: 45 degrees inclined 360 degrees rotatable trinocular
• Total magnification: 3.5X-90X
• Eyepieces: 30mm widefield WF10X/20 and WF20X
• Objective: zoom 0.7X-4.5X
• Zoom ratio: 6.5:1
• Auxiliary objective lens: 0.5X
• Separate photo-tube focus adjustment
• Beam split lever enables photo-tube or left eye-tube
• Interpupillary distance: adjustment 2-3/16inch ~ 2-15/16inch(55mm ~ 75mm)
• Diopter: adjustable on both ocular-tubes /-5dp
• Working distance: 6-1/4inch (160mm) with 0.5X auxiliary lens and 3-3/4inch (95mm) without 0.5X auxiliary lens
• Field of view: max 2-3/8inch (60mm) with 0.5X auxiliary lens and max 1-1/8inch (29mm) without 0.5X auxiliary lens
• Focus adjustment stroke: 2-3/8inch (60mm)
• Incident (upper) illuminator: 12V/10W halogen with reflector, 90 degrees adjustable inclined angle range
• Transmitted (lower) illuminator: 12V/10W halogen
• Each light has its own intensity control
• Main power on/off switch
• Mounting size of auxiliary lens and ring lights: 50mm female thread
• Glass stage plate: 3-3/4inch (95mm) in diameter
• White/black plastic stage plate: 3-3/4inch (95mm) in diameter; Sturdy metal framework
• Power supply: UK Plug with EU Adapter
• 5-year warranty against manufacturing defects