Delta Optical Forest Gen3 Binoculars 8x42

Binoculars with a 42 mm objective lens and fixed 8x magnification, belonging to the third generation of models in the Forest series. The design uses a BaK4 roof prism system with phase correction, ED glass lenses, and multi-coated FBMC anti-reflective coatings. A magnesium-aluminium alloy housing, nitrogen filling, and a wide field of view of 142 m at 1000 m make this model suitable for nature observation, hiking, and use in changing lighting conditions.

The binocular body is made of a magnesium-aluminium alloy and built around a compact Roof design, which helps maintain a slim profile. The interpupillary distance adjustment range is 59-73 mm. The housing is covered with a soft non-slip rubber coating with a textured surface, providing protection and shock absorption. The binoculars are equipped with a convenient central focusing mechanism that allows quick switching from observing nearby targets to objects at long distances.

Twist-up eyecups improve comfort and help maintain proper eye position relative to the eyepiece. Dioptre adjustment in the right eyepiece allows precise image adjustment to the observer's individual needs. The model is equipped with a standard 1/4 inch tripod thread, allowing mounting on a tripod with a suitable binocular adapter. The binoculars are waterproof to IPX7 standard and equipped with nitrogen filling to protect against fogging, allowing observation even in unfavourable weather.

The objective lenses are made of ED glass. This material is used to reduce chromatic aberration, meaning coloured fringing visible on high-contrast edges. This results in a clearer image and more accurate colour reproduction of observed objects.

The model uses an optical system based on BaK-4 prisms made of barium crown glass. They feature a high refractive index, which makes it possible to achieve an image with high sharpness, brightness, and good contrast with minimal chromatic aberration. Thanks to good light transmission, these prisms perform especially well in low-light conditions. The lenses and eyepieces are coated with multi-coated FBMC anti-reflective coatings, which reduce light loss and unwanted reflections. As a result, the image gains high contrast, natural colour reproduction, and better clarity.

A 5.2 mm exit pupil means the binoculars also perform well during twilight observation and in limited lighting conditions. The model stands out with a wide field of view (142m/1000m), which allows observation of a larger area without the need to frequently reposition the binoculars, making it easier to locate and track moving objects.

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 model comes with an adjustable neck strap for comfortable and secure carrying during field observation.

• binoculars
• neck strap
• case strap
• case
• set of covers

• 42 mm objective lens diameter
• fixed 8x magnification
• housing made of magnesium-aluminium alloy
• BaK-4 prisms in a roof prism system
• tripod mountable
• ED glass lenses
• FBMC coating
• wide field of view
• non-slip rubber protective layer
• case included
• waterproof design
• nitrogen filling
• central focus adjustment knob for quick operation
• dioptre adjustment