Product Comparison
YCS 71 Ultra Trinocular Microscope vs YCS 6558S Trinocular Microscope
Two YCS trinocular stereo zoom microscopes from Mr. Yang's line. The 6558S covers 6.5X-58X continuous zoom and bundles the CTV 0.5x camera adapter; the 71 Ultra counters with an 11-step detented zoom (6.75X-45X), an integrated dust-resistant objective, and independent left-right eyepiece adjustment.
YCS 71 Ultra Trinocular Microscope
The YCS 71 Ultra is the precision-focused trinocular stereo microscope of Mr. Yang's YCS line: a 0.67x-4.5x zoom with an 11-step fine-tuning knob delivers 6.75x-45x total magnification through high-eyepoint 10x/23 wide-angle eyepieces. Its integrated dust-resistant objective needs no external dust cover, each eyepiece adjusts independently (-5 to +5 diopter), and rotatable rubber eyepiece guards set the working distance. Available as Package B (microscope only) or Package C with the YCS X80 industrial camera and CTV 0.5 adapter for live monitor work.
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YCS 6558S Trinocular Microscope
The YCS 6558S is a trinocular stereo microscope for phone repair with 0.65x-5.8x zoom optics — 6.5x to 58x total magnification through high-eyepoint wide-angle 10x23 eyepieces — plus a CTV 0.5x camera port for live display and photo documentation, an adjustable LED ring light, and a collision-protection limiter. A YCS microscope from Mr. Yang's YCS repair tool line, ready for motherboard-level BGA and micro-soldering work.
View full specifications →Side-by-Side Specifications
| Specification | YCS 71 Ultra Trinocular Microscope | YCS 6558S Trinocular Microscope |
|---|---|---|
| Brand | YCS | YCS |
| Model | YCS 71 Ultra | YCS-6558S |
| Type | Trinocular stereo zoom microscope | Trinocular stereo zoom microscope |
| Zoom Ratio | 0.67x - 4.5x with 11-step fine adjustment | — |
| Total Magnification | 6.75x - 45x (with 10x eyepieces) | 6.5x – 58x continuous (with 10x eyepieces) |
| Eyepieces | High-eyepoint wide-angle 10x/23 x2, independent left-right diopter (-5 to +5) | WF10X23 high-eyepoint wide-angle ×2, anti-reflective coated |
| Eyecups | Rotatable rubber eyepiece guards | — |
| Objective | Integrated dust-resistant high-transmittance objective - no external dust cover needed | — |
| Optics | Anti-reflection coated, high refractive index and high transmittance | — |
| Camera Port | Trinocular top port; Package C includes CTV 0.5 adapter + YCS X80 camera | CTV 0.5x adapter included |
| Stand | Metal pillar column and base with focus arm | — |
| Size (approx.) | ~37 x 25 x 41 cm (same class as the YCS 6575X) | — |
| Weight (approx.) | ~4.5 kg (same class as the YCS 6558 series) | — |
| Package B | 10x/23 eyepieces x2, main unit, main unit bracket, column, microscope base | — |
| Package C | Package B + YCS X80 industrial camera + CTV 0.5 adapter | — |
| Zoom Range | — | 0.65x – 5.8x (objective) |
| Focus | — | Coarse focus knob + eyepiece diopter fine adjustment |
| Interpupillary Adjustment | — | Flexible, ergonomic |
| Collision Protection | — | Limiter ring included |
| Illumination | — | Adjustable LED ring light plate (ships black or white at random) |
| Base | — | Metal plate with positioning scale, 380 × 260 mm |
| Size | — | 380 × 260 × 273 mm |
| Weight | — | 4.6 kg (including base) |
| Package | — | 436 × 343 × 270 mm; 5.8 kg |
| In the Box | — | Eyepieces ×2, CTV 0.5x ×1, main unit, bracket, limiter, dust cover lens, column, base, LED light plate, rubber rings ×2 |
Key Differences That Matter
Model
Zoom Ratio
Total Magnification
Eyepieces
Eyecups
Objective
Optics
Camera Port
Stand
Size (approx.)
Weight (approx.)
Package B
Package C
Zoom Range
Focus
Interpupillary Adjustment
Collision Protection
Illumination
Base
Size
Weight
Package
In the Box
Which One Should You Choose?
Pick the YCS 6558S if you want continuous zoom with range up to 58X and the CTV 0.5x camera adapter included. Pick the 71 Ultra if repeatable 11-step magnification, the sealed dust-proof objective, and rotatable eyepiece guards fit your workflow better - or step to Package C for the X80 camera bundle.
YCS 71 Ultra Trinocular Microscope vs YCS 6558S Trinocular Microscope — FAQ
Is detented zoom better than continuous zoom?
For repeatable work, yes: the 71 Ultra's 11-step knob clicks back to the exact same magnification, which keeps before/after photos consistent. Continuous zoom (6558S) gives finer framing freedom but no fixed reference steps.
Which includes a camera?
The 6558S bundles the CTV 0.5x camera adapter (camera sold separately). The 71 Ultra's Package C bundles both the CTV 0.5 adapter and the YCS X80 industrial camera - a complete monitor-ready station out of the box.
Which is easier to maintain?
The 71 Ultra - its integrated dust-resistant objective seals the front element, so there is no external dust cover to fit or clean. The 6558S uses a traditional objective arrangement with an LED dust cover accessory.
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