ZEISS 10×40 SFL Binoculars
SmartFocus. Lightweight. Pure Performance.
The ZEISS 10×40 SFL (SmartFocus Lightweight) Binoculars are designed for discerning users who demand maximum optical performance in a remarkably compact and lightweight frame. Engineered with cutting-edge Ultra-High Definition (UHD) lens coatings, FL (fluoride) glass elements, and ZEISS's proprietary SmartFocus technology, these binoculars deliver crystal-clear detail, brilliant color fidelity, and unmatched ergonomic handling — even during extended use.
Crafted for birdwatchers, nature observers, and outdoor explorers, the ZEISS SFL series represents a perfect balance of power, portability, and precision.
🔍 Key Features
✅ 10× Magnification with 40mm Objectives
Powerful zoom for detailed observation at long range, combined with a bright and wide image — perfect for birding, wildlife tracking, and scenic landscapes.
✅ SmartFocus Concept for Intuitive Handling
Fast, effortless focusing with minimal hand movement. The SmartFocus wheel is perfectly positioned and optimized for precise control with just 1.4 turns from close focus to infinity.
✅ FL Glass + ZEISS UHD Optical System
Incorporates premium fluoride glass and Ultra-High Definition coatings to minimize chromatic aberration and deliver razor-sharp, high-contrast images — even in challenging light.
✅ Compact, Lightweight Design (Only ~640g)
Up to 20% lighter and 15% shorter than comparable models, the SFL 10×40 is designed for comfort over long sessions, without compromising stability or optical quality.
✅ LotuTec® & ZEISS T Coatings*
LotuTec® hydrophobic coating repels water, dirt, and oil, while T* multi-coating ensures maximum light transmission and true color fidelity in all conditions.
✅ Robust, Weatherproof Construction
Fully waterproof and nitrogen-purged, the magnesium-alloy chassis provides exceptional durability in the most demanding field conditions.
🛠 Technical Specifications
| Feature | Specification |
|---|---|
| Magnification | 10× |
| Objective Lens Diameter | 40 mm |
| Field of View | 115 m @ 1000 m / 377 ft @ 1000 yds |
| Exit Pupil | 4.0 mm |
| Eye Relief | 18 mm |
| Close Focus Distance | 1.5 m (4.9 ft) |
| Lens Coating | ZEISS T* + LotuTec® |
| Prism System | Schmidt-Pechan Roof Prisms |
| Waterproof / Fog-Proof | Yes (Nitrogen-Filled, Sealed) |
| Weight | Approx. 640 g (22.5 oz) |
| SmartFocus Wheel | Yes (Ergonomic Center Focus Wheel) |
✅ Ideal For:
🐦 Precision Birdwatching & Ornithology
🐾 Wildlife Observation & Nature Watching
🏕️ Hiking, Trekking & Expedition Use
📷 Companion to High-End Photographic Outings
🌅 Long-Distance Scenic Viewing
📦 What’s Included
ZEISS 10×40 SFL Binoculars
Premium Carrying Case
Neoprene Comfort Neck Strap
Eyepiece & Objective Lens Caps
Lens Cleaning Cloth
Instruction Manual & Warranty Card
🌟 Why Choose ZEISS SFL 10×40?
🔭 World-class optics in a lightweight, travel-ready body
🎯 Exceptional clarity, color, and precision at long range
💡 SmartFocus design reduces fatigue and improves speed
🛡️ Field-ready construction with waterproof protection
🏆 German-engineered excellence for serious naturalists
🌐 Redefining Lightweight Performance.
The ZEISS 10×40 SFL Binoculars offer unmatched balance between optical performance and portability. Whether you’re chasing rare species, hiking alpine ridges, or watching wildlife from a blind, the SFL series delivers clarity, control, and comfort — all day, every day.