Pixfra® Cetus C635 Thermal Riflescope

The Pixfra Cetus C635 is a compact thermal riflescope built around a 640 × 512 VOx detector with NETD sensitivity of ≤15 mK. Its 35 mm F1.0 objective lens combines a wide field of view with a manufacturer-rated detection range of up to 2,300 m. PIPS 3.0 image processing, a high-resolution OLED display, customizable zeroing profiles, and recoil-activated recording support hunting and observation in demanding light and weather conditions.

High-Sensitivity 640 × 512 Detector

The uncooled VOx detector combines a 640 × 512 resolution with a 12 μm pixel pitch. Its low NETD value helps reveal subtle temperature differences and retain target and background detail in rain, fog, vegetation, and other low-contrast conditions.

Wide Field of View with Long-Range Detection

The 35 mm F1.0 objective lens provides 2.5× native magnification and a field of view measuring 21.9 × 17.6 m at 100 m. This provides a useful balance between situational awareness and observation at longer distances.

The manufacturer specifies a detection range of up to 2,300 m. Digital magnification can be increased progressively up to 8× when closer inspection of a selected area is required.

PIPS 3.0 Image Processing

PIPS 3.0 processes the detector output to improve fine detail and maintain image definition at higher digital magnification. Picture-in-picture enlarges the central area while retaining the wider scene in the main display.

Additional viewing tools include hot spot tracking, defective-pixel correction, multiple flat-field correction modes, and six selectable color palettes.

High-Resolution OLED Display

The thermal image is displayed on a 0.5" OLED screen with a resolution of 1600 × 1200 px. The display uses a curved interface designed to keep essential information readable while aiming and adjusting the riflescope.

A 50 mm eye relief provides suitable viewing distance when the scope is mounted on a firearm. Adjustable diopter correction allows the eyepiece to be adapted to the user’s eyesight.

Customizable Zeroing Profiles

The Cetus C635 can store five zeroing profiles with selectable reticle patterns and colors. Profiles can be added, renamed, deleted, and organized into different zeroing-distance groups.

Compatible settings and zeroing functions can also be managed through the Pixfra Outdoor mobile app.

Recoil-Activated Recording

The recoil-activated recording function uses an impact sensor to save footage from 15 seconds before to 15 seconds after a shot. This captures the relevant sequence without requiring recording to be started manually before every shot.

The scope can also capture photographs and conventional video with sound. Files are stored in the 64 GB internal memory and can be transferred to a compatible smartphone through the built-in Wi-Fi connection.

Replaceable 18650 Battery

Power is supplied by a replaceable rechargeable 18650 battery. The press-to-release battery cover allows the battery to be changed quickly without tools.

Runtime is at least 4.5 hours at 25 °C with Wi-Fi switched off. The USB-C port also supports operation from a compatible external power source.

Magnesium-Alloy Housing

The full magnesium-alloy housing combines structural rigidity with a relatively low weight. A combined wheel-and-button control layout keeps frequently used functions accessible while reducing the area occupied by separate controls.

The IP67-rated construction protects the scope against dust and temporary water immersion. It is also rated to withstand recoil acceleration of 1,000 g for 0.4 ms. A Weaver-compatible mount is included for attachment to a suitable rail.

Key Features:

• 640 × 512 uncooled VOx detector
• NETD sensitivity of ≤15 mK
• 35 mm F1.0 objective lens
• 2.5× native magnification
• Wide field of view
• Detection range up to 2,300 m
• PIPS 3.0 image processing
• 1600 × 1200 OLED display
• Digital magnification up to 8×
• Picture-in-picture and hot spot tracking
• Five customizable zeroing profiles
• Multiple reticle patterns and colors
• Recoil-activated recording
• Photo, video, and audio recording
• 64 GB internal storage
• Wi-Fi connectivity and Pixfra Outdoor app support
• Replaceable 18650 battery
• USB-C external power support
• Full magnesium-alloy housing
• IP67-rated construction
• Rated for recoil acceleration of 1,000 g / 0.4 ms
• Weaver-compatible mount included