ZEISS Conquest HDX 15×56
Long‑Range Power. Extreme Clarity. Performer in the Dark.
The ZEISS Conquest HDX 15×56 is built for those who demand exceptional reach, superior optical performance, and rugged reliability in challenging conditions. Designed for long‑distance observation, twilight viewing, and demanding outdoor use, this binocular blends massive light gathering with high-definition optics and ergonomic design — reserve it for serious glassing.
🔍 Key Features
15× Magnification × 56 mm Objectives
Enables detailed viewing of distant subjects — ideal for wildlife at extreme distances, stargazing, or long‑range terrain scanning. The large 56 mm lenses gather a lot of light, giving better performance in low light.
HD Optics with ~90% Light Transmission
The HDX series uses high-transmission lens glass and coatings (ZEISS T*) to deliver bright, crisp, high-contrast imagery even under dim lighting. Zeiss+2Zeiss+2
Exit Pupil of ~3.7 mm & Twilight Factor ~29
Balances brightness and magnification well; the light gathering ability helps with dusk/dawn observations. Zeiss+1
Exceptional Build & Weather Resistance
Rugged construction with magnesium housing, waterproofing to 400 mbar, nitrogen purging against internal fogging, and the LotuTec® coating that repels water, dirt, and oil. Zeiss+2Zeiss+2
Comfort & Handling
A large, easy-focus wheel that works well even with gloves; eyecups designed for comfort; included tripod adapter for stable viewing given the high magnification and weight. Zeiss+2Zeiss+2
🔧 Technical Specifications
| Specification | Detail |
|---|---|
| Magnification | 15× Zeiss+1 |
| Objective Lens Diameter | 56 mm Zeiss+1 |
| Light Transmission | ~90% to the eye Zeiss+1 |
| Exit Pupil Diameter | ~3.7 mm Zeiss+1 |
| Twilight Factor | ~29.0 Zeiss+1 |
| Field of View @ 1000 m | 80 m (≈ 240 ft) Zeiss+1 |
| Close Focus Distance | ~3.5 m (≈ 11.5 ft) Zeiss+1 |
| Diopter Adjustment Range | −4.0 to +4.0 dpt Zeiss+1 |
| Interpupillary Distance Range | 54‑74 mm Zeiss+1 |
| Exit Pupil Distance (Eye Relief) | ~18 mm Zeiss+1 |
| Prism System | Abbe‑König Zeiss+1 |
| Waterproof / Fog‑Proof | Yes, sealed to 400 mbar, nitrogen purged Zeiss+1 |
| Operating Temperature | ‑20°C to +63°C (‑4°F to +145°F) Zeiss+1 |
| Dimensions (L × W) | 210 mm × 145 mm (at IPD ~65 mm) Zeiss+1 |
| Weight | ~1,265 g (≈ 44.6 oz) Zeiss+1 |
✅ Why Choose the 15×56 Conquest HDX?
Unmatched reach and detail for distant viewing
Bright, high-contrast images even after sunset or in low light
Durable and weatherproof — responsive to real‑world conditions
Tripod‑compatible for stable viewing at high magnification
Ideal for serious users: hunters, long‑range observers, naturalists, and astronomy buffs
⚠️ Considerations & Trade‑Offs
Hefty: at over 1.2 kg, it’s not for pocket carry; a tripod or stable support is often necessary for long sessions
15× magnification amplifies hand shake; handheld use will be challenging unless you have very steady grip or support
Close focus (3.5 m) is decent but not very tight — better suited for medium to far distances