Kite Optics Petrel II 8.5x50

• 8.5x50 configuration: The combination of moderate magnification and a large 50 mm objective gives this binocular a bright, steady image that works well at dawn, dusk, and over long observation sessions.
• Roof prism design: The Schmidt/Pechan prism system keeps the binocular slimmer and easier to carry than a bulkier porro design, while still providing the straight-barrel handling many users prefer in the field.
• Long 19.00 mm eye relief: The generous eye relief makes the Petrel II 8.5x50 more comfortable for eyeglass wearers and helps maintain a full field of view without a cramped viewing position.
• Nitrogen-filled waterproof housing: Waterproof and fogproof construction helps the binocular stay reliable when moving between cold and warm environments or when used in wet hunting and birding conditions.
• Close focus to 2.80 m: A relatively short close-focus distance adds versatility, letting the binocular handle nearby wildlife and general nature observation as well as longer-range scanning.

About the Kite Optics Petrel Series

The Kite Optics Petrel II series sits in the brand’s traditional binocular range as a line built for users who want a practical balance of brightness, portability, and all-round field use. Current Petrel II models include 8x42, 10x42, 8.5x50, and 10x50 versions, giving the series a clear spread from lighter daytime formats to larger low-light options. Across the range, the design focuses on waterproof, nitrogen-filled construction, a slim ergonomic body, and aluminum twist-up eyecups that suit regular outdoor use.

Petrel II binoculars are intended for activities such as birdwatching and stargazing, which explains the series’ emphasis on comfortable viewing and dependable weather resistance. The use of Kite Optics MHR optical coatings reflects the family’s focus on practical image quality rather than unnecessary complexity. In use, that means a binocular line designed to deliver clear contrast, stable handling, and enough optical comfort for long sessions behind the glass. The Petrel II series is therefore a sensible fit for users who want one binocular for mixed observation, whether that means scanning open ground, following wildlife, or watching in fading light.

About the Kite Optics Petrel II 8.5x50

The Kite Optics Petrel II 8.5x50 is the low-light oriented model in the series for users who want more image brightness than a typical 42 mm binocular without moving to excessive magnification. Its 8.50 x magnification keeps the image easier to hold steady than higher-powered alternatives, while the 50.00 mm objective lenses gather enough light to support observation in woodland, at first and last light, or under overcast skies. The 5.88 mm exit pupil also helps the view feel relaxed and bright in dim conditions.

With a field of view of 97.00 m/1000m, this model remains practical for scanning terrain and following moving subjects, while the 19.00 mm eye relief improves comfort for eyeglass wearers and for anyone spending long periods glassing. The Roof - Schmidt/Pechan prism layout keeps the body compact for a 50 mm binocular, and the central focusing system supports quick adjustment when shifting between near and distant subjects. A close focus of 2.80 m adds flexibility for general nature observation, not only long-range viewing.

Mechanically, the binocular is built for regular outdoor use with fully multicoated lenses, nitrogen filling, and waterproof and fogproof construction. These features matter in practice because they help preserve contrast in damp weather, reduce internal fogging when temperatures change, and make the binocular more dependable across seasons. At 795.00 g and 175.00 mm in length, the Petrel II 8.5x50 offers a useful compromise between carrying comfort and the optical advantages of a larger objective format.

About Kite Optics

KITE OPTICS is a Belgian family-owned company that has developed high-precision nature-observation optics since 1992. Headquartered in Jabbeke, Belgium, the company builds its reputation around binoculars, spotting scopes, riflescopes, and red-dot sights, with a product range that covers both traditional field optics and stabilized designs. That mix is important because it shows the brand’s expertise across different observation needs, from conventional hunting and birding binoculars to more specialized viewing systems.

Within sport optics, KITE OPTICS is particularly known for combining practical field design with model-specific technologies. Its lineup includes both stabilized and traditional optics, and its riflescope families include K6, K4, B6, and B6 LR. The company also uses proprietary features such as APC automatic illumination in relevant riflescope models. For binoculars like the Petrel II, this background translates into a clear focus on durable construction, usable ergonomics, and optical systems developed for real observation rather than purely catalogue-driven specifications.

Main Features

• Series: Kite Optics Petrel
• Magnification: 8.50 x
• Objective lens diameter: 50.00 mm
• Prism type: Roof - Schmidt/Pechan
• Lens coating: Fully Multicoated
• Field of view: 97.00 m/1000m
• Field of view (degrees): 5.50 °
• Exit pupil: 5.88 mm
• Eye relief: 19.00 mm
• Close focus: 2.80 m
• Diopter range: - 3.0 / + 3.0 dpt
• Focusing system: Central
• Diopter adjustment position: Right eye-piece
• Body design: Single hinge
• Waterproof: Yes
• Fogproof: Yes
• Nitrogen filled: Yes
• Tripod adaptable: Yes
• Working temperature range: - 25°C / + 55°C
• Length: 175.00 mm
• Width: 131.00 mm
• Weight: 795.00 g
• Color: Black

Warranty

Kite Optics covers the Petrel II 8.5x50 with a 30-year warranty. This long warranty period matches the model’s role as a durable field binocular intended for regular outdoor use over many seasons.

In the Box

• Lens covers
• Straps
• Pouch