Fortuna General 40A6 Thermal Imaging

• 640x480 thermal sensor: The higher-resolution microbolometer gives the Fortuna General 40A6 a cleaner thermal image with better target definition, which helps when scanning mixed terrain or separating animals from background clutter.
• 40 mm F1 objective: A fast lens gathers more thermal energy, improving image brightness and helping the monocular hold detail in poor weather and at longer observation distances.
• AMOLED display: The 800x600 AMOLED screen delivers strong contrast and comfortable viewing, making long observation sessions easier on the eyes and helping fine heat signatures stand out.
• Compact aluminum housing: The rubberized aluminum body keeps weight to 400.00 g while remaining durable enough for regular field use, so the device is easier to carry and steadier in one-handed observation.
• Waterproof, fogproof construction: Nitrogen filling and sealed construction help the monocular stay usable in rain, cold, and rapid temperature changes where untreated optics can fog internally.

About the Fortuna General Series

Fortuna General is a family of compact thermal devices intended for short- and medium-range use, covering both handheld observation and weapon-mounted applications within the same broader platform. In Fortuna’s lineup, the series sits as a practical all-round option for hunters and sport shooters who need thermal imaging without moving to larger specialist systems. The range includes both thermal scopes and monocular-style configurations, with lens options such as 25 mm, 40 mm, and 50 mm to suit different viewing distances and fields of view.

A defining characteristic of the series is its rubberized aluminum housing and waterproof construction, giving the devices a field-oriented design that balances durability with manageable size. Fortuna also equips General models with automatic silent calibration and an 800x600 AMOLED display, features that support discreet use and a clear, high-contrast viewing image. Across the family, sensor options include 384 × 288 and 640 × 480 formats with 17 μm pixel pitch, allowing users to choose between a more economical setup and finer thermal detail while keeping the same overall operating concept.

About the Fortuna General 40A6 Thermal Imaging

The Fortuna General 40A6 Thermal Imaging is built as a compact thermal monocular for users who want a wide, easy-to-read view without giving up useful detection reach. Its 1.00 x base magnification makes scanning natural and intuitive at short distances, while the digital magnification up to 3.40 x gives extra image scale when checking a heat source more carefully. Combined with a 15.20 ° field of view, this setup works well for searching woodland edges, open fields, tracks, and other areas where rapid target acquisition matters as much as detail.

The imaging core uses a 640x480 microbolometer with 17.00 μm pixel pitch, supported by a 40.00 mm F1 objective lens. In practice, that combination gives the monocular enough thermal sensitivity and lens speed to show heat contrast clearly while maintaining a useful detection range of 1400.00 m. The 800x600 AMOLED display helps preserve contrast and viewing comfort, and the 25.00 Hz refresh rate keeps movement readable during normal observation.

For field use, the housing remains compact at 180.00 mm long and 400.00 g in weight, making it easy to carry for long periods. The aluminum body, rubberized exterior, waterproof and fogproof construction, and nitrogen filling all support use in cold, wet, or changeable conditions. Automatic Brightness Control helps the image remain comfortable as viewing conditions change, while image capture, video recording, and video output make the device more useful for documentation, training, or shared observation.

About Fortuna

FORTUNA is a Russian manufacturer of thermal imaging devices focused on hunting, night shooting, and sport shooting applications. The trademark was registered in 2010, and the company’s product range includes thermal sights, monoculars, binoculars, and clip-on attachments. This concentration on thermal and night-use equipment gives the brand a clear specialization within the shooting and observation market rather than a broad general-optics portfolio.

The company states that its thermal imagers are produced at LLC Modul in Moscow, Russia, and it also develops software for its products. That combination of device and software development is relevant in thermal optics, where image processing, calibration behavior, and user interface design have a direct effect on field usability. Within the General family in particular, Fortuna offers both 384 × 288 and 640 × 480 thermal formats for short- and medium-range work.

Main Features

• Magnification: 1.00 x
• Maximum magnification: 3.40 x
• Objective lens diameter: 40.00 mm
• Lens aperture: F1
• Field of view: 264.00 m/1000m
• Field of view (degrees): 15.20 °
• Detection range: 1400.00 m
• Thermal sensor type: Microbolometer
• Sensor resolution: 640x480
• Pixel pitch: 17.00 μm
• NETD: 60.00 mK
• Temperature sensitivity: 50.00 mK
• Refresh rate: 25.00 Hz
• Display type: AMOLED
• Display resolution: 800x600
• Image capture: Yes
• Video recording: Yes
• Video output: Yes
• Battery type: CR123A
• Battery life: 5.00 h
• Housing material: Aluminium
• Length: 180.00 mm
• Width: 72.00 mm
• Height: 52.00 mm
• Weight: 400.00 g
• Working temperature range: -30/+50
• Waterproof: Yes
• Fogproof: Yes
• Tripod adaptable: Yes
• Built-in rangefinder: No

Warranty

The Fortuna General 40A6 Thermal Imaging is covered by a 2-year warranty.