This is a trinocular compound LED microscope with the power range from 40X to 2000X. The compound microscope features an optical system for simultaneously observing images through eyepieces and an adjustable trinocular port. The compound microscopy includes a 45 degree inclined 360 degree swiveling trinocular head, body frame, revolving quadruple nosepiece, two pairs of widefield eyepieces WF10X/18 and WF20X, four DIN achromatic objectives: 4X, 10X, 40X (spring), 100X (spring,oil), large double layer mechanical stage, Abbe NA1.25 condenser with iris diaphragm and a LED illumination system. The LED lamp can be replaced by yourself. The trinocular port is easy to mount photo or video capability. You can add advanced accessories including darkfield condenser and phase contrast kit to upgrade your microscope. All lenses are made of high quality optical glass. The high resolution image in the field of view is crystal clear and will satisfy the demands of professionals. This trinocular microscopy is good for teaching, demonstration, clinical examination and research purpose.

Features:45 degree inclined 360 degree swiveling trinocular viewing head
Replaceable 3W LED transmitted light with adjustable intensity
4 achromatic objectives DIN 4X, 10X, 40X(spring), 100X(spring, oil)
Large double layer mechanical stage with NA1.25 Abbe condenser & iris diaphragm
Coaxial coarse & fine focus knobs with tension control

Specifications: Model: M837SL
Total magnification: 40X-80X-100X-200X-400X-800X-1000X-2000X
Eyepieces: widefield WF10X/18 and WF20X
Objectives: achromatic DIN 4X, 10X, 40X (S), 100X (S, Oil)
Viewing head: 45°Inclined 360°swiveling trinocular
Interpupillary distance: sliding adjustable 2-3/16" ~ 2-15/16" (55mm ~ 75mm)
Diopter: adjustable on both eyepiece tubes
Nosepiece: revolving quadruple
Stage: mechanical stain-resistant double layer, size: 5-1/2" x 5-1/2" (140mm x 140mm), translation range: 3" x 2" (75mm x 50mm)
Photo tube adjustment range: 5/8" (15mm)
Focus: coaxial coarse and fine focus knobs on both sides, rack & pinion adjustment, with tension control
Focusing knob can be locked for observation & transportation
Condenser & diaphragm: Abbe NA1.25 rack & pinion adjustment condenser with iris aperture diaphragm
Black palm rest on the base
Illumination: transmitted (lower), replaceable 3W LED light, variable intensity
Metal mechanical components
Power supply: 100V~240V 50/60Hz worldwide range (US and Canada power plug)
Dimension: 7-7/8 " x 10-1/4" x 16" (20cm x 26cm x 41cm)
Net weight: 11 lb 11.5 oz (5.3 kg)
Shipping package: 15 lb (7 kg)

Packing List: Trinocular microscope head
Microscope stand
Photo tube
4 objectives: 4X, 10X, 40X, 100X
A pair of eyepieces WF10X/18
A pair of eyepieces WF20X
A bottle of immersion oil
Power cord (US and Canada standard)
Mirror for power outage
Dust cover
Color filter
Extra fuse