Northfork Series
It took America's Optics Authority to perfect European design: introducing the Northfork™ Series binoculars. The ergonomic, single slim-hinge design makes the Northfork so comfortable you might not believe the powerful optical performance inside. We pulled out all the stops to engineer a binocular that excels in low-light conditions, when you need them most.
Features
Northfork Binoculars
Sleek and stylish, the Northfork Series packs a lot of performance into an ergonomic package. Large objective lenses and superior optics provide a bright, crisp picture with unmatched definition.
- Fully multi-coated lenses optimize light transmission for a brighter sight picture, and enhance clarity and contrast.
- SHR enhanced, phase coated BAK4 prisms significantly increase resolution for a sharp sight picture from edge to edge of the visual field.
- Integrated diopter and focus knob make fine-tuning in the field a breeze.
- Single slim-hinge design reduces weight and allows the Northfork to fit comfortably in any size hands.
- Expanded field of view with 350 yards at 1,000 yards with the 8.5x model or 321 feet at at 1,000 yards with the 10.5x model.
- Rugged, waterproof, and covered by the Leupold® Limited Lifetime Warranty for as long as you own them.
- Available in black or Mossy Oak Break-Up camouflage finish.
Specifications
Northfork 10.5x45mm
Available Finishes
| Actual Magnification | 10.5x |
|---|---|
| Linear Field of View (ft/1000 yd) | 325 |
| Linear Field of View (m/1000 m) | 108 |
| Angular Field of View (degrees) | 6.2 |
| Weight | 27.0 oz / 765 g |
| Length | 6.1 in / 155mm |
| Obj. Aperture (mm) | 45 |
| Twilight Factor | 21.7 |
| Exit Pupil (mm) | 4.3 |
| Eye Relief (mm) | 16.3 |
| Interpupillary Distance (mm) | 60-70 |
| Close Focus Distance | 9.8 ft / 3.3 m |
Ordering Information
To make ordering any of these products easier, download the Product Ordering Chart (in PDF format), which includes the part number for each specific model.![]()
Application Guide
| General Purpose | |
|---|---|
| Children/Youth | |
| People with Interpupillary Distance (IPD) Less Than 60mm | |
| Beginners – Requiring Larger Field of View | |
| General Field Birding | |
| Coastal Birding | |
| Tropical Birding | |
| Butterfly Watching | |
| Hiking and Camping | |
| Wildlife Observation | |
| Paddle Sports | |
| General Maritime Use | |
| Stadium Sporting Events and Performances | |
| Theater Concert Performances | |
| Organic Eye Problems (macular degeneration, etc.) | |
| Loss of Vision in One Eye or Non-Tracking Eye | |
| Decreased Pupillary Dilation Common with Age | |

