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Description
15x56 roof prism binocular with UHD glass, for long-range observation and hunting at extended distance.
The Cronus G2 UHD 15x56 is the long-range configuration in Athlon's flagship binocular line, pairing high magnification with a 56 mm objective for a bright image at distance. UHD extra-low dispersion glass and the E2ES edge-to-edge field-flattening system hold sharpness and colour to the edge of the field of view.
Abbe prisms and ESP dielectric coating are used in place of the BaK4/phase-correction combination on the smaller Cronus models, and a magnesium chassis keeps the larger body manageable for extended handheld glassing.
Key features
- UHD extra-low dispersion glass — reduces chromatic fringing for a cleaner, higher-contrast image at high magnification.
- E2ES edge-to-edge sharpness — the field-flattening system removes distortion at the outer edge of the field of view.
- ESP dielectric prism coating — reflects over 99% of the light through the prism assembly for accurate colour reproduction.
- Abbe prisms — used with phase correction for contrast and resolution at long range.
- Magnesium chassis — keeps the 56 mm body manageable for extended handheld use.
- Twist-up eyecups with long eye relief — 18.5 mm eye relief, usable with or without spectacles.
- Argon purged and sealed — waterproof, with XPL protective coating on the exterior lenses.
Typical applications
- Long-range hunting and game spotting
- Bird watching at extended distance
- Tripod-assisted or stationary observation
Technical specifications
| Model | Cronus G2 UHD 15x56 |
| Type | Roof prism binocular |
| Magnification | 15x |
| Objective lens | 56 mm |
| Eye relief | 18.5 mm |
| Angular field of view | 4.5° |
| Field of view | 78.4 m at 1000 m (235 ft at 1000 yd) |
| Close focus | 4.0 m (13.1 ft) |
| Interpupillary distance | 59–74 mm |
| Prisms | Abbe, phase corrected, ESP dielectric coating |
| Lens coatings | Advanced fully multi-coated, XPL protective coating |
| Chassis | Magnesium |
| Eyecups | Twist-up |
| Purging material | Argon |
| Sealing | Waterproof |
| Dimensions (H × W) | 221 × 157 mm (8.7 × 6.2") |
| Weight | 1281 g (45.2 oz) |
In the box
- 1 × Cronus G2 UHD 15x56 binocular
- 1 × neck strap
- Lens caps
Model information
| Brand | Athlon Optics |
| Model | Cronus G2 UHD 15x56 |
| MPN | 111005 |


