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GD1 20-40x56
GD1 20-40x56
GD1 20-40x56
GD1 20-40x56
GD1 20-40x56

GD1 20-40x56

Compact by design. Powerful by performance. Built for distant discovery.
Price: $660.00 USD
 
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GD1 20-40x56
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GD1 20-40x56
GD1 20-40x56

Your Portable Window to Nature

Big Vision. Smaller Form.

COMPACT BODY  •   LIMITLESS DETAIL

Chromatic
Correction

Magnesium Alloy
Durable Design

Ultra-Wide View
Constant FOV

2:1 Zoom Ratio
Flexible Viewing

 

Through GD1

See Every Detail

APO optics control chromatic aberration for crisp, high-resolution views.

 
 

Through GD1

See True Colors

Dual ED glass reduces color fringing to preserve natural tones and subtle details.

 
 

Through GD1

See More of Nature

An expansive field of view helps you observe more and track moving subjects with ease.

 
 

Precision Optical Architecture

 

APO Optical System

Advanced APO optics with integrated flat-field correction elements minimize chromatic aberration and improve edge-to-edge sharpness for clearer views across the entire image.

Glass Elements

  • 2 ED Glass: Minimizes chromatic aberration for more accurate color rendering in high-contrast scenes.

  • 5 Lanthanum Elements: Provides high refractive performance and low dispersion for natural color reproduction.

Eyepiece System

2:1 Zoom Ratio UWA Eyepiece: The aspherical ultra-wide-angle eyepiece maintains a constant 75° apparent field of view throughout the 20-40x zoom range, delivering an immersive viewing experience.

Coating System

  • Fully Multi-Coated (FMC): Reduces Reflections
  • Phase-Correction Coating (PC): Preserves Resolution & Contrast
  • Water-Repellent Coating (WR): Protects Against Moisture and Fingerprints

Together, these advanced coatings deliver ≥91% light transmission while minimizing reflections, enhancing contrast, and preserving true-to-life color.

56mm Objective Lens

Dual ED optics, a built-in hood, and aiming groove deliver confident long-range observation, M58 filter thread for added versatility.

26.5mm Large Eyepiece

A large eyepiece with a 3-step metal twist-up eyecup adapts to different viewing positions

270° Rotating Base

A rotating base lets you adjust viewing angles quickly without repositioning, while safety pins keep the scope securely attached.

Arca-Type Compatibility

The detachable reinforced metal base integrates an Arca-type interface for quick installation and reliable support.

Versatility

Capture the Moment

The included smartphone adapter makes it easy to capture and share distant discoveries wherever you go.

IP67

Built for Any Weather

Argon-filled IP67 protection and a durable magnesium alloy body keep performance reliable in rain, moisture, and demanding outdoor conditions.

 

GD1

20-40x56

Specifications
 
Model
GD1 20-40x56
Magnification
20-40x
Objective Lens Diameter
56mm
Lens Type
Dual ED Glass
Prism Type
K9
Optical Coating
Fully Multi-Coated (FMC);
Phase-Corrected Coating (PC);
Water-Repellent Coating (WR);
Light Transmission
91%
Eye Relief
2.8-1.4mm
Exit Pupil
20-18mm
Close Focus
8.2 ft / 2.5m
Field of View (FOV)
3.75-1.88°
194-46 ft @ 1000 yds
66-33m @ 1000 m
Waterproof
IP67, Argon-Filled
Dimensions
10.94x2.8x6.61 in
278x71x168 mm
Weight
2.41 lb / 1093g

In The Box

  • Spotting Scope
  • Smartphone Adapter
  • Lens Cloth & Paper
  • Snap-Fit Objective Lens Cover
  • Premium Carrying Bag