National Optical & Scientific Instruments 425 Series Stereo Microscope

The National Optical & Scientific Instruments 425 Series Stereo Microscope puts the convenience of 0.75x to 50x zooming magnification at your fingertips. Looking through the 35° inclined binocular eyepieces, the user benefits from a number of features. Included among them would be the 360° rotatable viewing head, rheostat controlled LED illumination, and ball-bearing focusing mechanisms.

Features:

• 0.75x-50x Zooming Magnification
• 35° Inclined Binocular Eyepieces
• Viewing Head Rotates 360°
• Anti-Fungal Properties
• Lambertain 5500K LED Lamp
• All-Metal Frame
• Heavy-Duty Post Mount w/ Locking Collar
• Two 80mm Stage Plates

Specifications:

Optical System:
Paired widefield high eyepoint 10x/23 eyepieces, inclined 35°, diopter adjustment on both eyepieces, interpupillary adjustment from 55mm to 75mm
Viewing head rotates 360°
High resolution, achromatic, color corrected lenses are parfocalled and parcentered
Zoom magnification range: 0.75x-5x
Anti-fungal properties

Illumination:
Rheostat controls intensity of bottom, top, or both illuminators
Lambertain 5500K color temperature 3 watt LED lamp
Heavy-duty 3-wire grounded cord and plug
4-position light control: top only / bottom only / top and bottom / off

Base:
Professional all-metal frame
Ball bearing focusing mechanisms
Heavy-duty post mount with locking collar, permits up or down adjustment of viewing head to accommodate different sized objects on stage
Includes two 80mm stage plates: frosted glass and reversible black/white plastic contrast plate
Universal power input 110V/220V