NocPix QUEST H35R Thermal Imaging Binoculars with LRF

The QUEST H35R is arguably the best all-round model in the QUEST range if you want high-resolution 640×512 thermal imaging with a wide field of view.

Its combination of a 35mm F0.9 lens and 3× base magnification provides a wide 22 × 18m field of view at 100m, making it particularly effective for scanning larger areas and mixed terrain.

Compared with the L35R, the H35R retains approximately the same 1,800m manufacturer-stated detection range but increases sensor resolution from 384×288 to 640×512 and provides a considerably wider field of view.

Compared with the H50R, it uses the same 640×512 sensor but prioritises field of view over maximum detection distance. The H50R increases manufacturer-stated detection range to approximately 2,600m but provides a narrower view.

Choose the H35R if you want: 640×512 resolution, wide-area scanning, integrated LRF and an excellent balance between image detail, field of view and detection distance.

L35R: The most accessible QUEST. It uses a 384×288 sensor with a 35mm lens and approximately 1,800m detection range.

H35R: Moves to a 640×512 sensor while retaining a 35mm lens and approximately 1,800m detection range. Its 22 × 18m field of view makes it particularly strong for scanning.

H50R: Uses the same 640×512 sensor as the H35R but moves to a 50mm lens, increasing manufacturer-stated detection range to approximately 2,600m and giving it a stronger long-distance bias.

S50R: The flagship model, combining a 1280×1024 detector with a 50mm lens, approximately 2,600m detection range and exceptionally wide 30 × 24m field of view.

The H35R and L35R both use a 35mm F0.9 objective lens and have approximately the same 1,800m manufacturer-stated detection range. The major difference is sensor resolution and resulting field of view.

The L35R uses a 384×288 detector containing 110,592 thermal pixels. The H35R increases this to 640×512, containing 327,680 thermal pixels — almost three times as many thermal pixels.

The H35R also starts at a lower 3× magnification and provides a much wider 22 × 18m field of view at 100m, compared with 5× and 13 × 10m on the L35R.

Choose L35R if price and higher base magnification are priorities. Choose H35R if you want substantially more sensor resolution, greater image detail and a much wider view for scanning.

The H35R and H50R share the same 640×512, 12μm thermal sensor, ≤15mK sensitivity and 60Hz refresh rate. The main difference is the objective lens and the resulting balance between field of view and detection distance.

The H35R uses a 35mm F0.9 lens, starts at 3× magnification and provides a wide 22 × 18m field of view at 100m. Its manufacturer-stated detection range is approximately 1,800m.

The H50R uses a 50mm F1.1 lens, starts at 4× and provides a narrower 15 × 12m field of view, but increases manufacturer-stated detection range to approximately 2,600m.

Choose H35R for wider scanning and all-round versatility. Choose H50R if longer-distance detection and greater image scale at distance are more important.

The main advantage of thermal binoculars is comfortable two-eye viewing. Rather than continuously viewing a display with one eye, the QUEST provides a familiar binocular-style viewing experience.

This can make a noticeable difference during prolonged observation. The binocular body also provides a stable two-handed grip and natural viewing position.

A thermal monocular remains attractive where minimum size and weight are priorities. QUEST binoculars make more sense where viewing comfort and extended scanning are particularly important.

NETD measures the thermal sensor's ability to distinguish very small differences in temperature. In general, a lower NETD figure indicates greater thermal sensitivity.

The QUEST H35R is rated at ≤15mK, helping it distinguish subtle temperature differences and retain useful environmental detail when thermal contrast is reduced.

R+ image processing is NocPix's image-processing technology designed to optimise thermal detail, contrast and overall image presentation.

Electronic Image Stabilisation (EIS) helps reduce visible image movement during handheld viewing, producing a steadier thermal image.

Together with the H35R's 60Hz refresh rate, these technologies contribute to a smooth and stable viewing experience during handheld scanning.

The QUEST H35R incorporates a concealed laser rangefinder with a manufacturer-specified maximum range of up to 1,000 metres.

Integrating the LRF directly into the binocular body provides convenient distance measurement without requiring a separate handheld rangefinder.

NocPix specifies a detection range of approximately 1,800 metres for the QUEST H35R under its stated test conditions.

Detection is not the same as identification. At very long distances the thermal device may detect that a heat source is present without providing enough detail to determine exactly what it is.

Actual useful viewing distance will vary according to subject size, weather, thermal contrast and environmental conditions.

NocPix's standard manufacturer warranty provides:

• 3 years warranty on the main device
• 2 years warranty on the battery
• 10 years warranty on the thermal detector

For NocPix products purchased from Bamfords Online, Bamfords is your point of contact for warranty support. If you experience a problem, contact us with proof of purchase and details of the issue and we will assist with the warranty process.

Warranty cover remains subject to NocPix's current manufacturer terms and conditions.

What sensor does the QUEST H35R use?
It uses a 640×512, 12μm thermal sensor with ≤15mK thermal sensitivity and a 60Hz refresh rate.

How far can the QUEST H35R detect?
NocPix specifies a detection range of approximately 1,800m under its stated test conditions. Detection should not be confused with identification range.

Does the QUEST H35R have a laser rangefinder?
Yes. It has an integrated concealed LRF with a manufacturer-specified maximum ranging distance of up to 1,000m.

What is the difference between H35R and L35R?
Both use 35mm F0.9 lenses and have approximately 1,800m detection range. H35R moves from a 384×288 sensor to 640×512 and provides a substantially wider field of view.

What is the difference between H35R and H50R?
Both use 640×512 sensors. H35R uses a 35mm lens with a wider 22 × 18m field of view and approximately 1,800m detection, while H50R uses a 50mm lens and increases manufacturer-stated detection to approximately 2,600m.

Which QUEST has the highest resolution?
The S50R is the flagship model with a 1280×1024 thermal detector.

Are binoculars more comfortable than a thermal monocular?
For prolonged observation, many users prefer binocular-style two-eye viewing because it provides a more natural viewing position. A monocular remains preferable where minimum size and weight are more important.

Is the QUEST H35R waterproof?
The QUEST series carries an IP67 protection rating.

How long is the NocPix warranty?
NocPix's standard warranty provides 3 years on the main device, 2 years on the battery and 10 years on the thermal detector, subject to manufacturer terms.

The NocPix QUEST H35R uses a dual-battery system, combining a built-in rechargeable battery with a removable 18650 rechargeable battery.

The external 18650 can be replaced in the field without interrupting use, making it easy to extend operating time during longer sessions. NocPix states approximately 6 hours of operating time under normal use, although actual runtime will vary depending on temperature and use of features such as the laser rangefinder, Wi-Fi and recording.

Two 18650 rechargeable batteries are supplied, giving you a spare external battery ready to swap when required.

• NocPix QUEST H35R Thermal Imaging Binoculars with LRF
• 2 × 18650 rechargeable batteries
• Battery charging kit
• USB-C charging/data cable
• Neck strap
• Lens cleaning cloth
• Quick-start guide
• Protective carry bag