Aven Tools 26800B-373-4 SPZ-50 Binocular Stereo Zoom Microscope, 6.7x–50x, with Post Stand & Polarized LED Ring Light
Aven Tools 26800B-373-4 SPZ-50 Binocular Stereo Zoom Microscope, 6.7x–50x, with Post Stand & Polarized LED Ring Light
The Aven 26800B-373-4 combines an SPZ-50 binocular stereo zoom microscope with a compact post stand and 60-LED ring light featuring a polarizer/analyzer. The included 10x eyepieces provide 6.7x–50x optical magnification. Rotate the polarizing ring to reduce distracting reflections from shiny parts and adjust brightness using the included variable light-control box.
When a reflective surface hides a feature, adjust the polarizer while viewing through the stereo eyepieces until glare is reduced. The compact stand and rack-and-pinion focusing support small-part inspection without the footprint of a boom stand.
Best Uses / Applications
- Examining shiny or highly reflective parts where glare obscures surface detail.
- Small-part visual inspection using adjustable polarized ring illumination.
- Compact inspection benches with limited space.
- Stereo optical examination at 6.7x–50x without a computer or camera workflow.
- Comparing surface features while adjusting illumination brightness and polarization.
Key Features
- SPZ-50 binocular Greenough stereo zoom microscope with 7.46:1 zoom ratio.
- Two 10x FN23 widefield eyepieces with 17 mm high eye point and 45° inclined tubes.
- 360° rotatable microscope body and diopter adjustment on both eyepiece tubes.
- 108 mm working distance without auxiliary lens.
- 60-white-LED ring light with polarizer/analyzer for glare reduction.
- Variable brightness control and included light-control box.
- 70 mm ring-light opening with three mounting thumb screws.
- Post stand 26800B-511 with rack-and-pinion focus mount and coarse adjustment knobs.
Microscope Specifications
| Manufacturer / MPN | Aven Tools / 26800B-373-4 |
|---|---|
| Microscope | SPZ-50 binocular stereo zoom |
| Included Magnification | 6.7x–50x |
| Eyepieces | Two 10x FN23; 17 mm high eye point |
| Body / Tubes | 360° rotatable / 45° inclined |
| Working Distance | 108 mm without auxiliary lens |
| Published Field of View | 34.3–3.6 mm in the supplied feature copy |
| Zoom Ratio | 7.46:1 |
| Diopter Adjustment | Both tubes, +5.6D to −7.2D |
| Interpupillary Distance | 52–75 mm adjustable |
| Optical System | Greenough |
| Listed Microscope Body Weight | 5 lb |
Aven's page title uses 6.75x–50x, while the detailed copy specifies 6.7x–50x; this listing follows the detailed specification. The maximum 200x family range requires optional eyepieces and auxiliary lenses.
Polarized LED Ring-Light Specifications
| Part Number | 26200B-214, per system-components and package lists |
|---|---|
| LEDs | 60 white LEDs |
| Polarization | Adjustable polarizer/analyzer |
| Brightness Control | Variable light-control box |
| Color Temperature | 8000 K, per supplied table |
| Published Light Output | 300 lumens |
| Inner Diameter | 70 mm |
| Mounting | Three thumb screws; ring-light adapter included in component package |
| Listed Ring-Light Working Distance | 100 mm; separate from microscope working distance |
| Power Supply | AC 90–240 V input; DC 18–22 V output, as listed |
| Published LED Life | Minimum 20,000 hours |
Post Stand Specifications
| Stand | 26800B-511 pole/post stand with focus mount |
|---|---|
| Base Dimensions | 220 × 284 × 15 mm in table; narrative separately states 220 × 280 × 15 mm |
| Vertical Post Length | 250 mm / 9.84 inches |
| Focusing | Rack-and-pinion with coarse adjustment knobs |
| Accepted Mount | SCW-PA, as listed by Aven |
| Listed Stand Weight | 8 lb |
The base-depth discrepancy is retained rather than resolved by assumption. The supplied ring light is a separate mounted polarized accessory, not an LED ring integrated into the focus mount.
Polarized vs. Standard Ring Illumination
| Selection Factor | This Polarizer/Analyzer Ring | Standard Non-Polarized Ring |
|---|---|---|
| Glare Control | Rotate the polarizer to reduce reflections from shiny surfaces | No adjustable polarization control |
| Primary Benefit | Improved visibility of reflective surface detail | General specimen illumination |
| Adjustment | Polarizer rotation and variable brightness | Brightness controls depend on the selected light |
Glare reduction depends on the specimen and adjustment; do not assume all reflections will disappear on every surface.
Package Contents
- SPZ-50 stereo zoom binocular microscope.
- 26800B-511 pole stand with focus mount.
- 26200B-214 ring light with polarizer.
The component lists also identify two 10x eyepieces, rubber eyeguards, dust cover and microscope manual, plus a ring-light adapter and variable light-control box. No camera, monitor or software is listed. Optional auxiliary lenses and alternate eyepieces are separate accessories.
Frequently Asked Questions
What magnification is included?
The detailed manufacturer copy specifies 6.7x–50x with the supplied 10x eyepieces.
What is the polarizer for?
The polarizer/analyzer helps reduce glare and reflections from shiny or highly reflective parts so surface detail is easier to examine.
How do I adjust polarization?
Aven instructs users to rotate the polarizing ring slowly while viewing the specimen until glare is reduced.
Can I adjust brightness?
Yes. A variable light-control box is included.
Is the ring light integrated into the focus mount?
No. This bundle lists a separate polarized ring light with mounting thumb screws and adapter.
Does the stand have fine focus?
The supplied stand description specifies coarse rack-and-pinion focusing; fine focus is not established by these screenshots.
Does it include a camera?
No camera, monitor or imaging software is listed in the package.
Can it reach 200x as supplied?
No. The included range is 6.7x–50x; higher magnification requires optional optics.
Is the complete system ESD-safe?
The supplied screenshots do not establish an ESD-safe rating for this configuration.
