
PRISMVUE NF2 | Prismatic Loupes KP202 | USYFITVUE GP1
Feature of PENTAX deflection loupes
Reducing cervical strain
PENTAX's proprietary deflection prisms allow the surgeon to magnify the operation field while standing straight and facing forward, and reduce the cervical strain during operation. The comfort-oriented frame design minimizes the weight felt when the loupes are worn.

Bright and wide view
PENTAX's proprietary engineering design provides a bright and wide field of view. The upright posture facing forward during operation prevents the surgeon's head from interfering with the surgical lights and ensures a bright field of view at all times.
Smooth shifting between magnified and life-size views
Shifting between magnified and life-size views* is achieved by simply shifting the focus of the eyes up and down, without moving the head. This keeps the magnified field of view at a constant position.
*High-refractive-index aspherical lenses. sre incorporated in eyglass for Type L.
Reducing eye fatigue
The convergence (*note) provided by the optical system allows stress-free parallel viewing at all times.
This reduces the eye fatigue caused by convergent efforts.
*note: Convergence means the eyes' turning inward toward the nose when we view objects with both eyes.
Adjustments and other features
Comparative Specifications
| Product name | PENTAX PRISMVUE NF2 | |||||||
|---|---|---|---|---|---|---|---|---|
| Types | Type G | Type B | Type L | |||||
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| Product name | PENTAX PRISMVUE NF2 | |||||||
|---|---|---|---|---|---|---|---|---|
| Types | Type G / Type B | Type L | ||||||
| Eyeglass lenses | Not included | Ultra-high refractive index: 1.67 (aspherical) |
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| Prismatic loupe unit | N series (light weight) |
S series (high-performance) |
N series (light weight) |
S series (high-performance) |
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| Power | 3.0× 3.5× | 2.5× 3.0× | 3.0× 3.5× 4.0× 5.0× | 2.0× 2.5× 3.0× | ||||
| Lens configuration |
Objective: 2 Ocular: 3 |
Total: 5 | Objective: 3 Ocular : 3 |
Total: 6 | Objective: 2 Ocular : 3 |
Total: 5 | Objective: 3 Ocular : 3 |
Total: 6 |
| Exit pupil diameter | 4.2mm | 6.4mm | 4.2mm | 6.4mm | ||||
| Working distance (WD) |
45cm 50cm 55cm Contact us for other working distances |
Made to order | ||||||
| Focus adjustment | Adjustable using the objective lenses | |||||||
| Frame | K: Black B: Blue S: Silver![]() |
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| Carrying case | Carrying case included![]() |
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PRISMVUE NF2 | Prismatic Loupes KP202 | USYFITVUE GP1

Reducing the cervical strain
The 48-degree deflection prisms provide the surgeon with a magnified view of the lower-front operation field while standing straight and facing forward, and reduces the cervical strain during the operation.
Reducing the eye fatigue
The convergence (*note) provided by the optical system allows stress-free parallel viewing at all times.
This reduces the eye fatigue caused by convergent efforts.
*Note: Convergence means the eyes' turning inward toward the nose when we view objects with both eyes.
A bright and wide field of view
The proprietary optical design, including larger oculars, provides a brighter and wider field of view. The natural posture of the operating surgeon prevents his/her head from interfering with the surgical lights and ensures a bright operation field at all times.
Easy shifting between magnified and life-size views
Shifting to an life-size view is achieved by simply turning the eyes downward, eliminating the need to remove or flip up the loupes using hands.
Adjastable focusThe focus can be adjusted by turning the objective lenses. The objective lenses can be secured to ensure the focus stability. |
Easyily and securely worn using a strapThe loupes can be easily and securely worn using a stopper strap. |
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Specifications
| <KPW> | High-performance model<KSW> | |||
| 3.0× 3.5× 4.0× 5.0× | Power | 2.0× 2.5× 3.0× | ||
| Objective: 2 Ocular: 3 |
Total: 5 | Lens configuration | Objective: 3 Ocular: 3 |
Total: 6 |
| 4.2mm | Exit pupil diameter | 6.4mm | ||
| Ultra-high refractive index: 1.67 (aspherical) | Eyeglass lenses | Ultra-high refractive index: 1.67 (aspherical) | ||
| Titanium (front/temples) | Frame | Titanium (front/temples) | ||
PRISMVUE NF2 | Prismatic Loupes KP202 | USYFITVUE GP1
Adjustable functions
Specifications
| Product name | PENTAX USYFITVUE GP1 | |
|---|---|---|
| Types | Type T (Without eyeglass lenses) | Type L (With eyeglass lenses) |
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| Product name | PENTAX USYFITVUE GP1 | |||||||
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| Model | Type T (Without eyeglass lenses) | Type L (With eyeglass lenses) | ||||||
| T25G35 | T25G40 | T25G45 | T25G50 | L25G35 | L25G40 | L25G45 | L25G50 | |
| Power | ×2.5 | |||||||
| Working distance(WD) |
35cm | 40cm | 45cm | 50cm | 35cm | 40cm | 45cm | 50cm |
| Weight (including straps) |
76g | 87g〜 (Weight may vary with the strength of the glass lenses) |
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| Eyeglass lenses |
Not included | Ultra-high refractive index: 1.67 (aspherical) |
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| Frame | K:Black B:Blue S:Silver![]() |
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