Optek ST8050-B2L

The ST8050 series was designed for demanding users.

For their price they have unusually bright optics and a large depth of field, excellent zoom mechanics with the widest range at 0.8x–5x, and a modular build that can be configured freely.

 

Worth particular note on this model:

* wide-field eyepieces with protective fold-back rubber eyecups, designed to work for people who wear prescription glasses

* the very wide zoom range makes magnifications from 4x to 200x possible (the modules are in our range)

* the graduated zoom knob tells you exactly what magnification the microscope is working at — which you have to know in order to measure

* the advanced focusing system lets the resistance of the focus knobs be adjusted

* the trinocular version (ST8050T) has a CS-Mount connector with a 0.5x factor (ST1/2CTV), which captures an image with a field of view comparable to what the eyepieces show.

* the head comes with a mount for a ring illuminator as standard, so any ring light can be fitted without special adapter rings

* the whole set assembles without tools

 

Head: binocular (ST8050), inclined 45°, rotates 360°, interpupillary distance 52–75 mm, dioptre adjustment on both sides ±5

Eyepiece: EWF10x/22 mm (⌀ 30 mm)

Objective: Plan achromat 1x

Magnification: 8x–50x (extendable: 4x–200x)

Zoom range: 0.8–5x

Zoom ratio: 1:6.25

Working distance:

* standard: 115 mm

* with the 0.5x lens: 211 mm

* with the 2x lens: 43.5 mm

Field of view: 

* standard: φ28 ~ φ4.2

* with the 0.5x lens: φ55.0 ~ φ8.8

* with the 2x lens: φ13.8 ~ φ2.2

Focusing system: ergonomic coaxial coarse focus knob on both sides

Base / stand: B2L

Light source: LED transmitted / reflected, each continuously and independently adjustable, three lighting modes — DIA, EPI or DIA/EPI — built-in power supply

Can be extended with dark field and polarisation 

230 V AC supply — mains lead