Bresser Science ETD 201 Stereo Zoom Microscope 8x-50x

Description

Providing continuous variable zoom across large metallurgical cuts and botanical dissections, the Bresser Science ETD 201 Stereo Zoom Microscope 8x-50x delivers 8x to 50x magnification across a 6.25:1 ratio. Extra-wide 10x eyepieces provide a 22mm field number. The Greenough optical system yields authentic three-dimensional relief, though maximum 50x zoom reduces optical depth of field.

A heavy 5.2 kg pillar stand supports an integrated 0.8x to 5.0x zoom body, dimmable LED incident top lighting, and transmitted bottom illumination with a diffusion plate. The wide ergonomic base plate includes stage clips and interchangeable glass and opaque plates. Coaxial coarse focus knobs incorporate adjustable tension control, paired with a 360-degree swiveling trinocular head offering bilateral diopter tracking and USB or AC power flexibility.

Key Features of Bresser Science ETD 201 Stereo Zoom Microscope 8x-50x

Quality control inspectors, medical device assemblers, and university botany instructors choose this standalone stereo microscope for versatile surface and transmitted light evaluations. The 105mm working distance accommodates tall components and dissection tools, while the dual-source LED stand provides independent top and bottom brightness regulation.

• Greenough optical system with a 6.25:1 zoom ratio delivering 8x to 50x magnification
• Continuous internal zoom mechanism operating smoothly from 0.8x to 5.0x
• Trinocular viewing tube with 360-degree horizontal rotation and dedicated camera port
• Widefield WF 10x eyepieces providing an expansive 22mm field number (FN 22)
• Bilateral dioptric adjustment rings on both eyepiece tubes for balanced ocular focus
• Integrated dual LED illumination stand with independent incident and transmitted dimmers
• Generous 105mm vertical working distance allowing ample tool and specimen manipulation space
• Rigid 5.2 kg tabletop pillar stand with dual-sided stage plate inserts and specimen clips

Greenough Stereoscopy & Dual LED Illumination

Greenough stereoscopic optics route independent optical paths through an internal 0.8x to 5.0x zoom core, producing realistic depth perception across complex mechanical assemblies and biological specimens. The transmitted LED base brightens transparent embryos and thin cross-sections, while the oblique incident LED highlights surface texture, tool marks, and printed circuit board traces.

Ergonomic Base Plate & Focusing Mechanics

Resting comfortably on the wide base plate, operator forearms remain relaxed during long manual assembly or sorting sessions. The rack-and-pinion focus knobs turn with uniform mechanical drag across the vertical pillar, featuring an adjustable tension collar that prevents the optical head from drifting downward under camera loads.

• Large stage base provides generous hand support areas for delicate tool manipulation
• Tension-adjustable coarse focus mechanism holds optical height securely without slippage
• Integrated USB and AC power ports allow flexible deployment in mobile and laboratory workstations

Bresser Manufacturer Warranty & Box Gear

Bresser covers this stereo zoom microscope with a 2-year standard warranty, extendable to 5 years upon free online registration, protecting against material and manufacturing defects. The complete factory package contains the Science ETD 201 microscope, two WF10x/22mm eyepieces, glass stage plate, reversible black/white plate, USB power cable, AC adapter, and dust cover.