Product Description
ZEISS SFL 50 Binoculars – Bright. Light. Powerful.
Experience the next generation of premium optics with the ZEISS SFL 50 binoculars—engineered to combine the brightness of a 50mm objective with the portability of a 42mm model. Designed for serious birdwatchers, nature enthusiasts, and hunters, the SFL 50 series delivers exceptional clarity, colour fidelity, and ease of use in an ultra-lightweight, compact design.
Bright as 50mm. Light as 42mm.
The ZEISS SFL (SmartFocus Lightweight) binoculars redefine performance in the 50mm class, offering outstanding optical quality and superior handling in a body that’s up to 30% lighter and 10% shorter than traditional 50mm models.
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Ultra-compact design: Slimmer lens elements and tighter optical configuration reduce weight and size
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Magnesium housing: Lightweight, strong, and built to endure demanding conditions
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Weighs just 855–872g, perfect for extended use without fatigue
Unrivalled Optical Performance – UHD Concept
With a 90% light transmission rate and large exit pupil, the SFL 50 delivers bright, crisp images even in twilight or low-light conditions. Featuring ZEISS’s UHD optical concept, extra-low dispersion glass, and T multi-coating*, the binoculars provide superior contrast, resolution, and colour accuracy.
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UHD concept for crystal-clear detail across the entire image
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T multi-coating* and LotuTec® coating ensure clarity, colour fidelity, and dirt-resistant lenses
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Phase-corrected Schmidt-Pechan roof prisms with flat-field technology
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1.8 m close focus ideal for insects, flowers, and close-range observation
SmartFocus System – Intuitive and Ergonomic
ZEISS has refined the focusing experience with its SmartFocus system. Requiring just 1.4 turns from close focus to infinity, it offers smooth, precise focusing with minimal hand movement—especially useful when wearing gloves or observing fast-moving subjects.
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Large central focus wheel with textured grip for secure control
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Five-position twist-up eyecups for comfortable use with or without glasses
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Balanced weight distribution for steady, fatigue-free observation
Built for Harsh Environments
The SFL 50 binoculars are designed to perform in the toughest conditions. With a nitrogen-purged, waterproof construction (400 mbar), and ZEISS LotuTec® coating, they resist fogging, water, and debris—ideal for outdoor use in any season.
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Weatherproof and temperature-resistant (-20°C to +55°C)
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Hydrophobic coatings repel water and smudges for clear viewing
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Tripod-compatible via hinge cap
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Protective lens caps and case included
Models Tailored for Every Use
SFL 8x50 – Wide Field, Excellent Stability
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Ideal for: Scanning landscapes, tracking fast-moving birds or game
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Field of View: 131 m @ 1,000 m
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Exit Pupil: 6.25 mm
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Weight: 855 g
SFL 10x50 – Versatile, Balanced Viewing
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Ideal for: General wildlife observation, birdwatching, hunting
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Field of View: 122 m @ 1,000 m
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Exit Pupil: 5 mm
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Weight: 872 g
SFL 12x50 – Long-Range Detail & Precision
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Ideal for: Long-distance birding, open-country hunting, detailed observation
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Field of View: 105 m @ 1,000 m
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Exit Pupil: 4.2 mm
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Weight: 872 g
Technical Specifications
Feature | SFL 8x50 | SFL 10x50 | SFL 12x50 |
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Magnification | 8× | 10× | 12× |
Objective Lens Diameter | 50 mm | 50 mm | 50 mm |
Light Transmission | 90% | 90% | 90% |
Exit Pupil Diameter | 6.25 mm | 5 mm | 4.2 mm |
Twilight Factor | 20.0 | 22.4 | 24.5 |
Field of View @ 1,000 m | 131 m (393 ft) | 122 m (366 ft) | 105 m (315 ft) |
Subjective Viewing Angle | 58° | 66° | 68° |
Close Focus Distance | 1.8 m (5.9 ft) | 1.8 m (5.9 ft) | 1.8 m (5.9 ft) |
Diopter Adjustment Range | ±4 dpt | ±4 dpt | ±4 dpt |
Eye Relief | 20 mm | 18 mm | 18 mm |
Interpupillary Distance | 56–74 mm | 56–74 mm | 56–74 mm |
Prism System | Schmidt-Pechan | Schmidt-Pechan | Schmidt-Pechan |
Lens Coatings | ZEISS T*, LotuTec | ZEISS T*, LotuTec | ZEISS T*, LotuTec |
Nitrogen Purged / Waterproof | Yes / 400 mbar | Yes / 400 mbar | Yes / 400 mbar |
Operating Temperature | -20 to +55°C | -20 to +55°C | -20 to +55°C |
Dimensions (L × W) | 160 × 133 mm | 160 × 133 mm | 160 × 133 mm |
Weight | 855 g | 872 g | 872 g |
Order Number | 525023 | 525024 | 525025 |
ZEISS SFL 50 – where 50mm performance meets lightweight freedom. Whether you’re scanning distant ridgelines, identifying birds in twilight, or exploring nature up close, these binoculars are designed to go further, see more, and carry less.
Shop now and experience uncompromising optical performance—without the weight.
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