Product Description
PENTAX UP 8–16x21 Zoom Binoculars – Black
The PENTAX UP 8–16x21 Zoom Binoculars combine compact portability, versatile zoom magnification, and advanced optical performance, making them ideal for travel, wildlife observation, sporting events, and outdoor adventures. Designed with a lightweight yet durable body, these binoculars provide flexible viewing power in a compact design that is easy to carry anywhere.
Featuring fully multi-coated optics, BaK4 prisms, and aspherical lens elements, the UP 8–16x21 delivers bright, clear images with excellent sharpness across the field of view. The variable 8x to 16x zoom magnification allows users to quickly adjust their view depending on the situation, making them a versatile companion for a wide range of activities.
Flexible Zoom Magnification
The 8x to 16x zoom range allows you to adjust magnification depending on your viewing needs.
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8x magnification provides a wider field of view for general observation.
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16x magnification allows you to zoom in for closer inspection of distant subjects.
The zoom is controlled via the central adjustment wheel, enabling smooth and quick magnification changes.
Ideal for:
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Wildlife and birdwatching
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Sports events and stadium viewing
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Travel and sightseeing
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Nature and landscape observation
Advanced Optical Performance
The PENTAX UP series incorporates several advanced optical technologies to deliver clear and detailed images.
Optical features include:
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Fully multi-coated optics to maximise light transmission and reduce reflections
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BaK4 prisms for bright, high-resolution images
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Aspherical lens elements that minimise distortion and deliver edge-to-edge sharpness
These features ensure bright, crisp viewing with improved contrast and colour accuracy.
Compact Inverted Porro Prism Design
The binoculars use an inverted Porro prism optical design, providing excellent optical performance while maintaining a compact body shape.
This design offers:
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Improved depth perception
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A more compact and portable binocular structure
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Excellent optical performance for its size
Durable and Reliable Construction
The dual-axis uni-body construction improves durability while ensuring smooth adjustment of the interpupillary distance (IPD).
Additional design benefits include:
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Inner focus optical system, helping protect against dust and moisture
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Reduced number of moving parts for long-term reliability
Comfortable Viewing Experience
The binoculars are designed for comfortable use during extended viewing sessions.
Features include:
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Pull-up eyecups suitable for users with or without glasses
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Centrally located lockable diopter adjustment for personalised focus settings
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Ergonomic central focus wheel for precise adjustments
Rugged Rubber Armoured Exterior
The black rubber-armoured body protects the binoculars from impacts and scratches while providing a secure, non-slip grip.
This ensures reliable handling during outdoor activities and travel.
Key Features
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8x–16x zoom magnification
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21mm objective lenses
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Fully multi-coated optics for brighter images
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BaK4 prisms for improved clarity and contrast
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Aspherical lens elements for edge-to-edge sharpness
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Inverted Porro prism optical design
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Inner focus system for durability
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Pull-up eyecups for comfortable viewing
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Durable rubber-armoured exterior
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Ideal for travel, sports events, wildlife observation, and outdoor exploration
Technical Specifications
| Specification | Details |
|---|---|
| Model | PENTAX UP 8–16x21 |
| Prism Type | Inverted Porro Prism |
| Magnification | 8–16x |
| Objective Lens Diameter | 21mm |
| Angle of View | 5° – 3° |
| Field of View (at 1000m) | 87 m – 52 m |
| Exit Pupil | 2.6 mm – 1.3 mm |
| Eye Relief | 14 mm – 11 mm |
| Relative Brightness | 6.8 – 1.7 |
| Minimum Focus Distance | 3 m |
| Dimensions | 111 × 111 × 55 mm |
| Weight | 310 g |
Ideal Compact Zoom Binoculars
The PENTAX UP 8–16x21 Zoom Binoculars – Black offer an excellent balance of versatility, optical performance, and portability. With flexible zoom magnification and advanced optics, they provide a convenient and reliable solution for users who want powerful viewing capability in a compact design.
Whether you're travelling, watching wildlife, or attending live events, these binoculars deliver clear, detailed viewing wherever you go.
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