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These binoculars are clearly from the professional range, very solidly made, with high-quality materials and a wide adjustment range. They offer an excellent image, so it is worth investing in equipment that is durable and well designed. I definitely recommend them.
Delta Optical Forest Gen3 Binoculars 10x42
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€185.77
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€185.77
Delta Optical Forest Gen3 Binoculars 10x42
Binoculars with a 42 mm objective lens diameter and fixed 10x magnification, belonging to the third generation of models in the Forest series. The design uses BaK4 roof prism system with phase correction, ED glass lenses, and multi-coated FBMC anti-reflective coatings. A magnesium-aluminum alloy body, nitrogen filling, and a wide field of view of 113 m at 1000 m make this model well suited for nature observation, tourism, and changing weather conditions.
ergonomic rubber-coated body, waterproof construction
The binocular body is made of magnesium-aluminum alloy and based on a compact Roof design, which made it possible to maintain a slim profile. The interpupillary distance range is 57-76 mm. The housing is covered with a soft non-slip rubber coating with a grippy texture that protects the equipment and dampens impacts. It is equipped with a convenient central focus adjustment mechanism that allows quick switching from observing nearby targets to objects at long distances.
Twist-up eyecups improve user comfort and help maintain the correct eye position relative to the eyepiece. Diopter adjustment in the right eyepiece allows precise image matching to the observer's individual requirements. The model is equipped with a standard 1/4" tripod thread, making tripod mounting possible with the use of a suitable binocular adapter. The construction is waterproof to the IPX7 level and has been supplemented with nitrogen filling that protects against fogging, allowing observation even in unfavorable weather.
BaK-4 prisms, ED lenses, FBMC coating
The objective lenses are made of ED glass. This material is used to reduce chromatic aberration, meaning colored fringing visible on high-contrast edges. The result is a clearer image and more faithful color reproduction of observed objects.
The model uses an optical system based on BaK-4 prisms made of barium crown glass. They are distinguished by a high refractive index, which makes it possible to obtain an image with high sharpness, brightness, and clear contrast with minimal chromatic aberration. Due to good light transmission, these prisms perform particularly well in low light. The lenses and eyepieces are covered with multi-coated FBMC anti-reflective coatings that reduce light loss and unwanted glare. As a result, the image is characterized by high contrast, natural color reproduction, and better clarity.
The exit pupil has a diameter of 4.2 mm, and the twilight factor is 20.5. The higher twilight performance associated with 10x magnification increases comfort when observing distant objects in fading light conditions.
case included
The set includes a case made of durable synthetic material with increased resistance to abrasion and moisture, providing effective protection for the binoculars during transport and storage. In addition, the binoculars are equipped with an adjustable neck strap for comfortable and secure carrying during field observation.
set elements
- binoculars
- neck strap
- case strap
- case
- set of covers
main features
- 42 mm objective lens diameter
- fixed 10x magnification
- housing made of magnesium-aluminum alloy
- BaK-4 roof prisms
- tripod mountable
- ED glass lenses
- FBMC coating
- non-slip rubber protective layer
- case included in the set
- waterproof construction
- nitrogen filling
- central focus adjustment wheel for quick operation
- diopter adjustment
MILITARY is a premium dealer of Delta Optical.
Delta Optical is a European company established in 1989 on the initiative of optics enthusiasts. It currently ranks among the main manufacturers of binoculars and telescopes in Europe, and its equipment is used by travelers, hunters, astronomers, and TOPR mountain rescuers. The brand cooperates with renowned partners such as Pulsar, Pentax, and William Optics, offering a wide selection of devices valued by both professionals and enthusiasts of nature and sky observation. Delta Optical continuously improves its products, introducing innovations that increase precision and ease of use. Telescopes from this brand have been used many times during organized public astronomy shows. Thanks to the company's involvement, thousands of people had the opportunity to see Saturn's rings or the details of the Moon's surface for the first time.
| Magnification (x) | 10 |
|---|---|
| Objective lens diameter (mm) | 42 |
| Minimal focus | 2,5 m |
| Eye distance | 15,2 mm |
| Optical glass | BAK-4 |
| Binoculars use | General-purpose |
| Field of view (m /100 m) | 11,3 m/ 100 m |
| Exit pupil | 4,2 mm |
| Adjustable diopter | Yes |
| Cover / case / bag included in set | Cover |
| System | Roof |
| Anti-reflection coating | Multi-layer coating |
| Binoculars water resistance | Yes |
| Length | 147 mm |
| Weight | 709 g |
| EAN | 5901691613065 |
| Manufacturer code | FOREST 3 10X42 |
| Brand | Delta Optical |
| EAN |
BaK-4
BaK-4 are high-end prisms made of Barium Crown glass, containing barium oxide. They are used in advanced optics such as binoculars, telescopes and finders, where image quality is crucial. BaK-4 glass is characterized by a high refractive index, resulting in a sharp, bright and well-contrasted image with minimal chromatic aberration. With excellent light transmission, these prisms perform particularly well in low-light conditions.
ED Lenses
ED (Extra-low Dispersion) lenses are optical elements made of low-dispersion glass, used in high-end optical devices. Their main function is to reduce chromatic aberration, which is the splitting of light manifested by colored borders around contrasting objects. With ED lenses, the image is clearer, sharper and has better color reproduction - especially at the edges of the field of view and when observing high-contrast objects.
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