Porro Prism Binoculars | 12-32×70 Zoom Binoculars with K9 Prisms, Aluminum Alloy Body and Center Focus YIKP836-1
The YIKP836-1 12-32X70 Zoom Binoculars are positioned as high-magnification observation optics for outdoor equipment brands, astronomy accessory distributors, scenic observation retailers, and private label binocular suppliers.
Unlike conventional 8X or 10X fixed-magnification binoculars, this model features a 12X to 32X adjustable zoom system, allowing users to switch between broader observation and detailed long-distance viewing.
The large 70mm objective lenses, K9 Porro prism system, and glass optical elements provide a practical configuration for observing distant landscapes, wildlife, and celestial objects. Its aluminum alloy housing with rubber armor offers a substantial observation platform for users who prioritize magnification flexibility over compact portability.
The YIKP836-1 is especially suitable for high-power binocular product lines, recreational astronomy collections, and long-distance observation markets.
OVERVIEW
Key Advantages and Features
Powerful 12-32X Variable Magnification
The adjustable zoom system provides flexibility for users who want both subject location and detailed long-range observation. Lower magnification is practical for initial scanning, while higher magnification supports closer inspection from a stable position.
Large 70mm Objective Lenses
The 70mm objective configuration offers strong light-gathering potential, making the binoculars suitable for distant terrestrial viewing and recreational night-sky observation.
K9 Porro Prism Optical System
The traditional Porro prism arrangement provides a conventional high-power binocular viewing experience. Combined with K9 prism material and glass optical elements, it offers a practical foundation for recreational observation.
Multi-Element Glass Eyepiece Design
The 4-element, 3-group eyepiece construction and broadband green coatings on the eyepieces and objectives support image formation and help manage surface reflections.
Adjustable Viewing Comfort
Twist-up rubber eyecups, center focusing, and right-eye diopter adjustment allow users to adapt the binoculars to their viewing preferences. The adjustable interpupillary distance accommodates different eye spacing.
Aluminum Alloy Housing with Rubber Armor
The aluminum alloy body provides structural support, while NBR and PVC rubber armor offers a protective gripping surface for normal outdoor handling.
Suitable for Value-Oriented High-Power Product Lines
The combination of a wide zoom range, large objectives, and traditional Porro prism construction gives B2B buyers a differentiated high-magnification binocular option for recreational observation markets.
The model is not waterproof or fogproof, so it is best positioned for dry-weather outdoor use and protected observation environments.
Application Scenarios
Long-Distance Landscape Observation
The adjustable 12-32X magnification makes these binoculars suitable for observing distant mountains, valleys, coastlines, and scenic landmarks.
Users can begin at lower magnification to locate subjects and increase magnification for closer inspection. Stable support is recommended at higher zoom settings to reduce image shake.
Recreational Astronomy and Moon Viewing
With large 70mm objective lenses, the YIKP836-1 offers significant light-gathering potential for casual night-sky observation.
It can be used to explore lunar details and bright astronomical objects, particularly when supported on a stable platform. Its adjustable magnification provides flexibility for users interested in introductory astronomy observation.
Wildlife Observation Across Open Terrain
The YIKP836-1 is suitable for observing distant birds and wildlife in open grasslands, wetlands, and nature reserves.
Its variable magnification allows users to locate animals at lower power and examine distant subjects at higher power. The model is particularly appropriate for observation from fixed positions rather than fast-moving wildlife tracking.
Scenic Viewpoints and Fixed-Position Observation
The binoculars are suitable for observation decks, scenic viewing areas, countryside properties, and recreational lookout locations.
Their higher magnification range makes them attractive to consumers who want detailed observation from a relatively stable viewing position.
Customizable for Your Brand

Logo and firmware customization available

OEM/ODM support with low MOQ

Custom language interface and startup screens
Customizable Features
| Customizable Part | B2B Value |
| Logo Branding | Private label identification for outdoor and astronomy optics brand |
| Rubber Armor | Custom exterior colors and textures, subject to manufacturing feasibility |
| Housing Finish | Brand-specific appearance options for differentiated product collections |
| Packaging Design | Customized retail boxes, manuals, and branded gift packaging |
| Accessories | Optional carrying cases, neck straps, and cleaning kits |
| OEM/ODM Development | Customized configurations and brand presentation based on technical feasibility and MOQ |
Parameters
| Product Code | YIKP836-1 |
| Magnification | 12X ~ 32X (Zoom) |
| Body Material | Aluminum Alloy |
| Armor Material | Rubber (NBR + PVC) |
| Color | Black |
| Objective Lens Diameter | Φ70mm |
| Eyepiece Diameter | Φ20 ± 1mm |
| Exit Pupil Diameter | Φ5.8mm ~ Φ2.2mm |
| Eye Relief | 22mm ~ 16.5mm |
| Field of View | 3° ~ 1.1° |
| Field of View at 1000m | 52m ~ 19m |
| Field of View at 1000yds | 156ft ~ 57ft |
| Diopter System | Right Diopter Ring |
| Interpupillary Distance Adjustment | 58 ~ 73mm |
| Focus System | Center Focus |
| Focusing Lens | Eyepiece Focus |
| Diopter Compensation | -4 ~ +4 Diopter |
| Focusing Adjustment Range | -4 ~ +8 Diopter |
| Prism System | Porro (Paul) Prism |
| Prism Material | K9 |
| Objective Lens Construction | 2E1G (2 Elements, 1 Group) |
| Eyepiece Construction | 4E3G (4 Elements, 3 Groups) |
| Lens Type | Spherical Lens |
| Lens Coating | Fully Optical Glass; Broadband Green Film on Eyepiece & Objective |
| Incident Surface Coating | Blue Film |
| Waterproof / Fogproof | No |
| Eyecup Type / Material | Twist-up, Rubber (NBR) |
| Eyepiece Cover | Integrated Rubber (NBR + PVC) |
| Objective Cover | Separate Rubber (NBR + PVC) |
| Dimensions (L×W×H) | 129 × 170 × 55mm |
| Weight | 740g |
Let’s Work Together
Contact FORESEEN OPTICS to discuss wholesale pricing, MOQ, samples, and customized 12-32X70 zoom binocular solutions for your brand.
















