AmScope B120 Siedentopf Binocular Compound Microscope
- 40x to 1000x magnification from four DIN achromatic objectives
- 4x, 10x, 40xS and 100xS oil objectives, WF10x eyepieces
- Siedentopf head, 53 to 77mm interpupillary range, 30 degree inclination
- LED brightfield lighting, 1.25 NA Abbe condenser with iris
- Double-layer mechanical stage, 1mm divisions
- 110V and 220V power, 5 year warranty
Updated 2 days ago · Based on the Amazon listing and published specifications, not hands-on testing.
A full-range compound microscope with an oil objective and a rotating binocular head, suited to slide work. Lighting is brightfield only, so other contrast methods are out.
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ASIN: B009JPXSOCModel: B120Category: Compound Binocular Microscopes
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Overview
Students and home-lab users get a binocular compound microscope with a rotating head, four objectives on a forward-facing nosepiece and a cast-steel body. Light comes from below the stage through an adjustable condenser, so slides are viewed in brightfield.
Four achromatic objectives, a mechanical stage with coordinate divisions and a stain-resistant steel body cover most biology classwork and hobby slide study. Reaching the top power means using oil on the last objective, and the eyepieces are a single pair.
Who it's for
A biology class, a homeschool science corner or a hobbyist with prepared slides can use the full power range and the mechanical stage. Anyone inspecting circuit boards or coins needs a stereo design with more working room instead.
Pros and cons
- Four achromatic objectives on one nosepiece
- Spring-loaded high-power objectives protect slides
- Head rotates for shared viewing
- Mechanical stage records slide coordinates
- Oil needed for the highest power
- Single eyepiece pair included
- Brightfield illumination only
- Weight not listed
Performance notes
Total magnification is eyepiece power times objective power, so the four objectives step through the full range. The top objective is an oil type, where a drop between lens and slide increases resolution over a dry lens. The condenser iris controls how much light reaches the slide, which shapes contrast more than raw brightness. Spring-loaded objectives give slightly on contact, which protects slides while focusing.
Specifications
| Brand | AmScope |
|---|---|
| Model | B120 |
| Dimensions & fit | |
| Item dimensions l x w x h | 11 x 7 x 13.75 inches |
| Capacity & performance | |
| Interpupillary range | 53 to 77 mm |
| Power & efficiency | |
| Power source | Corded electric |
| Voltage | 110V and 220V |
| Construction & materials | |
| Enclosure material | Enamel-coated cast steel |
| Included components | |
| Eyepieces | WF10x pair |
| Warranty & support | |
| Warranty description | 5 years |
| Other details | |
| Magnification maximum | 1000x |
| Objective lens description | Achromatic DIN: 4x, 10x, 40xS, 100xS (oil) |
| Head | Siedentopf binocular, 360 degree rotation |
| Light source type | LED |
| Real angle of view | 30 degrees |
| Illumination | Brightfield, transmitted from below |
| Stage | Double-layer mechanical, 1mm divisions |
| Condenser | 1.25 NA Abbe with iris diaphragm |
| Builtin media | Binocular head, body, four objectives, one pair of 10X eyepieces, blue color filter, dust cover, immersion oil |
Frequently asked questions
What is in the box with the AmScope B120 and what is missing?
The listing names the binocular head, microscope body, four objective lenses, one pair of 10X eyepieces, a blue color filter, a dust cover and sample immersion oil. It does not list assembly steps, tools or a camera.
Do I need oil for the AmScope B120 high-power objective?
The 100xS objective is described as a spring-loaded oil objective, and the listing includes sample immersion oil.
Is the AmScope B120 for looking at large objects?
No. The description says a compound microscope is used when two-dimensional images of specimens are wanted, which means slides, not bulky items.
What lighting does the AmScope B120 use?
LED brightfield lighting from below the stage, which transmits light up through translucent specimens. The description calls the LED bright and cool.