(Z850) Zoom Stereo Microscope Series

Key features include:

• Binocular or trinocular viewing heads are inclined 45º and can rotate 360º
• A best-in-class 8x-50x magnification range with click-stops at 10x, 20x, 30x, 40x and 50x 
• 115 mm working distance allows easy access to specimens
• WF 10x,/22 mm field of view eyepiece 
• Airtight assembly prevents contamination from dust, water, oil 
• Z850 stereo bodies are made of anti-electrostatic materials 
• An anti-mold design, in addition to being air tight, allows the Z850 to be used in areas of high heat and humidity

Microscope viewing heads

All microscope viewing heads (binocular or trinocular) can accept eyepieces and objectives. Generally speaking, eyepieces establish the magnification range and objective establish the resolution and working distance of the microscope. (The objective also affects the magnification range, but it's easier to consider this separately.)

Eyepieces

Eyepiece selection is required and 10x is considered standard. The base magnification range of the viewing head is 0.8-5x , and the 10x objectives increases this range to 8-50x. (The 20x eyepieces will increase the magnification range to 16-100x.)

Objectives

Z850 microscope heads do not require separate objectives and the native design provides 1.0x magnification at a working distance of 115 mm. Auxiliary objectives of 0.5x, 0.7x, and 2.0x are available, with the 2.0x objective providing the greatest increase in resolving power at the expense of of a shorter working distance of 43 mm. 

The 2.0x objective doubles the microscope's resolution by reducing the area of the visual field. While providing greater resolution, this reduced visual field has the side effect of increasing the magnification since a smaller visual field can look like a zoom. However, the resolving power (ie, the detail you can see) will be greater with a 2.0x objective at 1x zoom over a 1.0x objective at 2x zoom) .

What's included

• Microscopes sold with stands include 10x eyepieces.
  Additional eyepieces of 15x and 20x are available.
   
• Viewing heads sold separately require the purchase of eyepieces.
   
• All viewing heads are 1.0x objective native.
  Optional 0.5x, 0.7x and 2.0x objectives are available.

View the bottom table in Specifications to see the effect of objectives and eyepieces on working distance, zoom range, and the visual field.

Plain Focusing Stand-Binocular

The Plain Focusing Stand’s thin design helps keep sample positions low resulting in increased user comfort. The focus mount is easily removable and can be positioned at two different points on the dovetail to offer maximum flexibility when working with small or large size samples.

The Plain Focusing Stand’s thin design helps keep sample positions low resulting in increased user comfort. The focus mount is easily removable and can be positioned at two different points on the dovetail to offer maximum flexibility when working with small or large size samples. The trinocular Z850 is pictured with an optional Micrometrics^TM CCD camera and C-mount adapter.

Simultaneous variable reflected and transmitted LED illumination can be utilized on this stand. The compact, thin design of the base allows users to keep sample positions low and maintains easy accessibility to the variable light controls. The reflected LED illuminator is powered by a 12 volt, 2 watt LED system and the transmitted LED illuminator by a 12 volt, 4 watt LED system. Both light sources are variable and controlled by a universal power supply (110–240V).

A variety of stands are available for the inspection of large size specimens. The boom stand features safety tracks on the horizontal arm and Delrin^® inserts in the focus block to ensure smooth, precise movements.

Binocular viewing head, 0.8x to 5.0x zoom range, inclined at 54°, 115mm working distance, interpupillary distance adj. 52-75mm, glass lens shield. Widefield 10x eyepieces with built-in diopter adjustment (paired), 22mm field of view bonder arm focusing mount, ball bearing boom stand. Dust cover and instruction manual.

For users seeking precise, stable movements the ball bearing boomstand is the recommended choice. Sturdy and ruggedly built, the ball bearing boom stand is ideal for observation applications where magnification adjustment and the ability to move across a sample are important considerations. The trinocular Z850 is pictured with an optional Micrometrics^TM CCD camera and C-mount adapter.

Designed for maximum freedom and flexibility this stand will deliver the adjustability you need. Ideal for the inspection of specimens that require a lot of movement or to scan a large sample area, the articulating arm can be easily adjusted into hard to reach positions and moved easily out of the way.

An optional table mount base for the Articulating Swing Arm Stand is available and is shown to the right. This base allows the Swing Arm Stand to be mounted onto a vibration isolation table having threaded holes, or bolted onto a standard table or counter.

This cost-effective transmitted illumination stand provides bright, even illumination across the entire magnification range. A tiltable mirror provides direct and oblique illumination for low contrast specimens. This unit can be configured with either a 6V, 20W halogen illuminator or 150W fiber optic illuminator.