The OC White Ergo-Zoom EZ-850 are binocular stereo microscopes, available in several configurations.  Easily modified by the user, the EZ-850 is compatible with a wide variety of optics, stands and light sources, enabling users to customize the system for their specific application.
 
The Ergo-Zoom EZ-850 has a zoom range of 0.8x to 5x, and is compatible with several styles of eyepiece and objective.  Available eyepieces come in 10x, 15x and 20x magnification, with objectives ranging from 0.5x to 2x.  This creates a high level of versatility, as users can create substantial changes in working distance and magnification by simply changing one part.  Working distance refers to the amount of space between your specimen and the microscope’s objective – increases in this number indicate a larger amount of room for the user to operate.  Depending on the configuration, the EZ-850 has a working distance of 32.5 to 200mm, and an overall magnification from 4x to 200x.  Please see the chart below for more information.  
 
The OC White Ergo Zoom is available with two styles of eyepiece positioning – fixed and adjustable.  Fixed eyepieces cannot be moved and are mounted at a 20 degree angle.  Adjustable eyepieces can be moved vertically 0 to 35 degrees, and maintain full functionality throughout the entire range of motion.  For identification purposes, models with fixed eyepieces are denoted by an “FH” in their model number.  For example, TKEZ-850 versus TKEZ-850-FH.
 
Several illumination sources are available for use with the EZ-850.  Compatible with OC White’s Micro-Lite series, users can chose from several LED and fiber optic lighting options.  The LV2000 is an extremely popular model – this is a dimmable, high intensity LED, and comes with a 5 year/50000 hour warranty.   It also uses minimal electricity and never has any bulbs to replace.
 
For applications requiring camera usage, the EZ-850 is easily converted from a binocular to trinocular microscope.  The OC White EZ-Splitter installs directly inline with the unit’s optical system, and creates no light loss through the eyepieces.  The microscope can continue to be used as normal, as images are caught by the camera through its trinocular port.

The TKEZ-850-D package includes the following:

• Binocular head with adjustable eyepieces, 0 to 35 degrees
• 1x auxiliary objective
• 10x eyepieces
• Dual arm stand with 16 inch vertical post
• Micro-Lite FL3000-D, 150w fiber optic Halogen, dual point light source

 

Eyepiece	With EZ-OB-050A (.5x Achromatic)	With EZ-OB-050 (.5x Plan APO)	With EZ-OB-100 (1x Plan APO) Std. in Kits	With EZ-OB-200 (2x Plan APO)
10X	4X~25X	4X~25X	8X~50X	16X~100X
	Φ60~Φ9.6	Φ60~Φ9.6	Φ30~Φ4.8	Φ15~Φ2.4
15X	6X~37.5X	6X~37.5X	12X~75X	24X~150X
	Φ40~Φ6.4	Φ40~Φ6.4	Φ20~Φ3.2	Φ10~Φ1.6
20X	8X~50X	8X~50X	16X~100X	32X~200X
	Φ30~Φ4.8	Φ30~Φ4.8	Φ15~Φ2.4	Φ7.5~Φ1.2
Working Distance	200mm (7.87")	126mm (4.96")	78mm (3.07")	32.5mm (1.28")

Φ Refers to Field of View measurements in millimeters