Guide Orion O435CS Thermal Clip-On

The Guide Orion O435CS Thermal Clip-On combines sensitive thermal imaging with an exceptionally compact and lightweight design, providing thermal capability in a streamlined clip-on platform for compatible daytime optics.

Featuring a 400×300 12μm thermal sensor with 15mK NETD thermal sensitivity, the Orion O435CS is designed to reveal subtle temperature differences and maintain useful image detail across challenging environmental conditions. A 35mm objective lens provides a detection range of up to 1800 metres, while Guide's ApexVision technology and Hyper-Light 2.0 image processing enhance thermal clarity, contrast and target definition.

At just 285g and measuring only 99 × 73 × 68mm, the O435CS places a strong emphasis on portability and balance. Combined with a 1× optical configuration, 1024×768 AMOLED display, replaceable 18500 battery and IP67 protection, it provides a compact thermal solution for demanding outdoor use.

ApexVision Thermal Imaging Technology

The Orion O435CS incorporates Guide ApexVision thermal imaging technology, combining advanced thermal hardware and image processing to produce clearer, smoother and more detailed thermal imagery.

ApexVision works with the high-sensitivity detector to improve image definition and preserve useful detail across varying temperatures, terrain and environmental conditions.

The system is designed to provide a more natural and informative thermal image while maintaining smooth performance during scanning and observation.

400×300 12μm Thermal Sensor

At the heart of the O435CS is a 400×300 thermal detector with a 12μm pixel pitch.

Its 15mK NETD thermal sensitivity allows the detector to recognise relatively small differences in temperature across a scene, helping maintain target definition when environmental thermal contrast is reduced.

Combined with a 50Hz refresh rate, the detector delivers smooth imagery when scanning terrain or following moving subjects.

35mm Lens & 1800m Detection Range

The 35mm objective lens provides a strong balance between field of view and longer-range detection.

The O435CS offers a stated thermal detection range of up to 1800 metres, giving users the ability to detect significant heat signatures across open terrain while retaining the compact dimensions of the Orion platform.

Its field of view measures approximately 7.9° × 5.9°, or 13 × 10 metres at 100 metres.

Ultra-Light 285g Design

One of the defining characteristics of the Guide Orion O435CS is its exceptionally compact construction.

Weighing only 285g and measuring 99 × 73 × 68mm, the device adds minimal bulk to a compatible optical setup.

Reducing the size and weight of a thermal attachment helps preserve the balance and handling characteristics of the overall system, particularly during extended periods in the field.

1× Thermal Clip-On Configuration

The Orion O435CS uses a 1× optical configuration, allowing thermal imaging capability to be introduced while retaining the characteristics of a compatible host optic.

Rather than functioning as a conventional standalone magnified thermal optic, the clip-on format is designed to work in conjunction with an existing optical system.

This provides users with the flexibility of thermal capability without requiring a complete change of their primary daytime optic.

Hyper-Light 2.0 Image Enhancement

Guide's Hyper-Light 2.0 image processing technology is designed to enhance the thermal image produced by the detector.

The algorithm intelligently processes image contrast, brightness, fine detail and tonal balance to improve definition across the viewed scene.

This can help make heat signatures and surrounding environmental detail easier to distinguish, particularly where temperature differences are relatively subtle.

Fast 3-Second Startup

The Orion C platform features a rapid startup system capable of bringing the device into operation in approximately three seconds.

Fast startup reduces the time between powering on the device and obtaining a usable thermal image, allowing the unit to remain powered down when not required while still being quickly available when needed.

1024×768 AMOLED Display

Thermal imagery is presented through a 0.39-inch AMOLED display with 1024×768 resolution.

The high-contrast AMOLED display provides a clear representation of thermal detail while maintaining the compact dimensions of the device.

Available thermal palettes include White Hot, Black Hot, Red Hot, Green Hot, Iron Red, Blue Hot and Sepia, allowing users to select an image presentation suited to their environment and personal viewing preference.

Replaceable 18500 Battery

The Guide O435CS uses a single replaceable 18500 rechargeable battery, providing up to 8 hours of stated operating time.

A replaceable battery system provides additional flexibility for longer periods away from external power, as compatible spare batteries can be carried and exchanged when required.

The unit also incorporates USB-C connectivity for convenient external power and charging functionality.

Efficient Power Management

The Orion platform has been designed around low power consumption to maximise operating time while maintaining a compact battery system.

Combined with the replaceable battery configuration, this makes the O435CS particularly practical for extended outdoor sessions where minimising equipment size and weight is important.

IP67 Weather Protection

The Guide Orion O435CS carries an IP67 protection rating, providing resistance against dust and water exposure encountered during normal outdoor operation.

Its specified operating temperature range of -20°C to 50°C allows the device to function across a broad variety of climates and environmental conditions.

Guide Orion O435CS Specifications

Why Choose the Guide Orion O435CS?

The Guide Orion O435CS Thermal Clip-On is particularly well suited to users who place a high priority on compact size and minimal additional weight while still requiring capable thermal detection performance.

Its 400×300 12μm detector, 15mK NETD sensitivity and 35mm objective lens provide a strong thermal imaging platform with detection capability extending to 1800 metres.

Where the O435CS particularly stands out is its physical design. At only 285g, it provides substantial thermal capability without the weight normally associated with larger thermal optics.

Combined with ApexVision processing, Hyper-Light 2.0 enhancement, a 50Hz refresh rate, 1024×768 AMOLED display, replaceable battery system, rapid startup and IP67 protection, the Guide Orion O435CS provides a capable and highly portable thermal clip-on solution.