SVBONY SA401PRO Spotting Scope, 15-35×56 APO Dual ED Glass for Birdwatching Apochromatic Color Correction, FBMC Coating, Ultra-Wide Zoom, 59°-75° Field of View, Ultralight Magnesium Alloy Spotter Scope

• HD imaging glass configuration: equipped with APO apochromatic lens structure; this spotting scope removes faint spectral dispersion effectively; Optimized glass materials greatly enhance image sharpness; bringing vivid and immersive visual experience
• Ultra-wide zoom eyepiece: this SA401Pro spotting scope supports smooth 15x-35x continuous zoom with 2.33x zoom ratio; It maintains broad field of view all the time; letting you track targets effortlessly even at maximum magnification
• 59°-75° apparent field of view: this spotting scope adopts 7-group 11-piece eyepiece structure with field flattener; 59°-75° apparent field of view; it brings giant-screen viewing; Real field ranges from 210ft to 109.8ft for panoramic observation
• Large handwheel focus adjustment: the large focus knob enables fast and accurate focusing for this spotting scope; Smooth fine tuning ensures stable framing; and it can be operated effortlessly even with gloves on during outdoor observation
• Rugged all-weather durability: this spotting scope adopts integrated magnesium alloy body; shock-resistant and portable; Stable operation ranges from -20°C to 50°C; IPX7 waterproof and fogproof design fits all terrains and weather
• Comfortable long eye relief design: this svbony SA401Pro APO Spotting Scope features twist-up eyecups and long eye relief; Ideal for glasses wearers; it delivers comfy viewing with optimized exit pupil for relaxed observation
• Portable birding & outdoor observation: lightweight and compact; this Spotting Scope suits mobile birdwatching and field exploration; Easy to carry around for outdoor sightseeing and wildlife observation anytime

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SA401PRO Spotting Scope 15-35×56 APO Spotting Scope for Bird Watching

1 Zero Fringing 2 Dual ED + Lanthanum Glass 3 Ultra-Wide Eyepiece FOV 4 FBMC Coating

Large Focus Knob

Equipped with a large-size focusing knob, it brings smooth and handy operation. You can achieve quick focusing and accurate fine tuning effortlessly. Comfortable grip allows stable adjustment even outdoors, easily locking distant targets and dynamic scenery.

Sturdy Magnesium Alloy Body

One-piece magnesium alloy build features light weight and impact resistance. It performs reliably at -20°C to 50°C, adapting well to tough outdoor scenarios.

IPX7 Waterproof

Boasting IPX7 waterproof performance, it resists moisture and fogging reliably. You can enjoy a clear view in all weather scenarios.

1/4"-20 Thread Interface

Adopts common UNC 1/4"-20 thread design, perfectly compatible with most tripods and camera heads. Supports rapid installation and stable mounting, convenient to build shooting and viewing setup anytime outdoors.

SA401 Pro Full-Field Wide-Angle Spotting Scope

Tripod Mount Thread	Standard UNC 1/4-20
Eyecup Type	Multi-position twist-up eyecup
Magnification	15x–35x56mm
Compatible Accessories:	SC002 WiFi Birding Camera
Objective Lens Configuration:	3 groups, 3 elements APO (2 × FCD1 + lanthanum glass)
Eyepiece Configuration:	7 groups, 11 elements
Prism Material & Type:	High-transmittance K9 Roof prism
Prism Coating:	AR multi-coating (40–700 nm), reflectivity < 0.5%

Lens Coating:	AR multi-coating (40–700 nm), reflectivity < 0.3%, with blackened edges
Focusing Method:	Large central focusing wheel
Eye Relief:	17 mm–16 mm
Eyepiece Focal Length	8.66 mm–19.5 mm
Exit Pupil Diameter:	3.73 mm–1.6 mm
Field of View:	210 ft–109.8 ft @ 1000 yd
Resolution:	≤ 2.9"
Minimum Focus Distance	7 m