"Watch the national treasure and sword at an impressive closest distance. "
[Close distance: 21.7 inches (55 cm)]
The at4 can be used as a binocular that focuses at a close distance of 21.7 inches (55 cm) so you can easily observe subtly distances that may be difficult to get close. In addition, since it is a binocular, you can get a three-dimensional feel that is hard to feel with monoculars. Not only can it be used for distant scenes, but also for observing plants and museums that cannot be approached
PFM coated for clear vision:
PFM coated with over 3 layers of anti-reflection coating on the entire lens and prism optical surface. By reducing reflections on the lens surface, it eliminates light loss and ensures a bright and clear view. Compact yet bright and clear images even in low-light conditions
Earth Color & Lightweight Compact:
The main body is lightweight at about 5.1 oz (145 g). Adopts earth color that is easy to match with fashion. You can carry it around without feeling discomfort while carrying it around at the park or museum
Description
1. Objective lens armor diameter: 0.7 inches (18 mm)
2. Magnification: 4x
3. Prism Material: BK7
4. Coating: PFM Coat
5. Field of View: 9.2°
6. View of view: 35.7 degrees
7.1,000 mile (1,61 m) of field of vision: 4.9 ft (1,
8. Pupil diameter: 0.18 inches (4.5 mm)
9. Brightness: 20.3
10. Eye relief: 18mm
11. Minimum focusing distance: 55cm
12. Tripod Mounting: No.
13. Eyelight Range: 2.3 - 3.0 inches (58 - 75 mm).
14. Waterproof: No