NocPix BOLT H50R Thermal Imaging Scope with LRF

The BOLT H50R uses a 640×512 thermal detector with a 12μm pixel pitch.

This gives it substantially more native image information than either of the other BOLT models. A 640×512 detector contains approximately 327,000 thermal pixels, compared with around 111,000 in the L35R's 384×288 detector and roughly 49,000 in the P25R's 256×192 detector.

The extra resolution becomes particularly valuable when observing smaller or more distant heat sources and when digital magnification is applied.

This is why the H50R is the model to choose within the BOLT family when image quality is the main priority rather than simply keeping purchase cost as low as possible.

The H50R improves thermal sensitivity to ≤18mK NETD, compared with ≤20mK on the P25R and L35R.

NETD describes how effectively the thermal detector can distinguish very small differences in temperature. Lower figures indicate better sensitivity.

This is especially useful in damp, foggy, overcast or mild conditions where the temperature difference between an animal and its surroundings may be relatively small.

The combination of higher sensor resolution and improved thermal sensitivity gives the H50R the strongest overall thermal image performance in the BOLT range.

The H50R pairs its 640×512 detector with a 50mm F1.0 germanium objective lens.

The longer focal length gives the H50R more native target scale than the P25R and L35R, making it particularly suitable for shooting across larger fields and open terrain.

Objective Lens	50mm F1.0
Field of View	8.8° × 7.0°
Field of View at 100m	Approximately 15 × 12m
Base Magnification	3×

This gives the H50R a useful balance between target size and surrounding field of view for medium and longer-distance use.

The BOLT H50R provides a broad 3–24× magnification range.

The 3× starting magnification gives targets useful native scale without creating an excessively narrow viewing area.

Higher magnification can then be applied when a more detailed view is required.

The H50R's 640×512 detector gives it a clear advantage over the lower-resolution BOLT models when magnification is increased because more native thermal information is available before digital enlargement is applied.

The H50R operates at a smooth 60Hz refresh rate.

This is higher than the 50Hz frame rate used by the P25R and L35R and helps movement appear fluid when scanning quickly or following a moving heat source.

A higher refresh rate does not increase sensor resolution, but it can make the viewing experience feel more natural during active observation.

NocPix states a thermal detection range of approximately 2,600 metres for the BOLT H50R under its specified test conditions.

This is a detection figure rather than an identification distance.

At extreme range the thermal system may establish that a suitably sized heat source is present without providing enough detail to determine exactly what that heat source is.

Positive identification therefore takes place at a considerably shorter distance than the maximum detection figure.

The BOLT H50R incorporates a periscope-style laser rangefinder directly into the thermal riflescope.

NocPix rates the LRF for ranging out to approximately 1,200 metres under suitable conditions.

This allows the user to detect, observe and measure the distance to a target without moving away from the scope or using a separate handheld rangefinder.

Accurate ranging is particularly valuable at night because darkness removes many of the normal landmarks and visual references used to estimate distance.

The integrated laser rangefinder works alongside the BOLT H50R's onboard ballistic calculation functionality.

Once the relevant rifle and ammunition information has been entered, measured target distance can be incorporated into the ballistic solution and corresponding aiming information presented through the display.

This combines thermal imaging, distance measurement and ballistic assistance within one riflescope.

Ballistic calculation remains an aiming aid and does not replace correct zeroing or verification of ammunition trajectory with the actual rifle and ammunition combination.

The BOLT platform uses NocPix's R+ image-processing algorithm to improve the presentation of the thermal scene.

The processing system works alongside the detector to refine edges, improve detail visibility and help separate useful thermal information from background noise.

The H50R's 640×512 detector gives the algorithm substantially more native scene information to work with than the lower-resolution P25R and L35R.

Thermal image quality is therefore determined by the combined performance of the sensor, thermal sensitivity, objective lens, processing system and display rather than resolution alone.

The BOLT H50R uses a riflescope-style viewing system with 50mm eye relief and a large 10mm exit pupil.

The 50mm eye relief allows a practical shooting position behind the optic, while the large exit pupil makes eye positioning more forgiving.

This can make it easier to acquire the complete thermal image when mounting the rifle quickly or shooting from different field positions.

Eye Relief	50mm
Exit Pupil	10mm

The BOLT H50R uses a dual-battery power arrangement combining an internal rechargeable battery with a replaceable rechargeable 18650 battery.

This provides the convenience of internal power while still allowing a removable battery to be replaced in the field.

NocPix gives the H50R a maximum stated runtime of up to approximately 9 hours under specified operating conditions. :chatgpt-content-reference{index="1"}

Power System	Dual battery
Replaceable Battery	Rechargeable 18650
Maximum Stated Runtime	Up to approximately 9 hours

Actual battery life depends on ambient temperature and use of functions such as Wi-Fi, recording and laser ranging.

The BOLT H50R supports onboard thermal photography and video recording.

Audio recording is also supported, allowing compatible video clips to include sound.

Recoil Activated Video can automatically preserve footage associated with a detected shot, helping reduce the chance of missing an important event because manual recording had not been started beforehand.

The BOLT H50R supports N-LINK connectivity for compatible NocPix app functions.

Wireless connectivity allows supported media and device functionality to be accessed through the compatible NocPix ecosystem.

This complements the onboard recording system and makes captured thermal footage easier to access and manage.

The BOLT H50R provides configurable aiming and image settings so the optic can be adapted to the rifle and the user's preferences.

Reticle options, zeroing settings and ballistic parameters can be configured for the intended setup.

Thermal palettes and image-adjustment controls also allow the thermal view to be adapted to different conditions and viewing preferences.

Zero should always be confirmed after installation and rechecked if the rifle, mount or ammunition configuration is changed.

One of the defining features of the BOLT family is its conventional riflescope-style layout.

The elongated body and ocular position make it feel more familiar to users moving from a traditional optical scope than many compact box-style thermal sights.

This also gives the user flexibility when positioning the optic for comfortable eye relief and a natural shooting position.

Always use correctly sized, high-quality mounts appropriate for the rifle and rail system and confirm zero after installation.

The H50R is housed in a high-strength aluminium-alloy body designed for demanding field use.

The scope carries an IP67 ingress-protection rating, helping protect the internal electronics against dust and water exposure within the limits of the rating.

This makes the BOLT suitable for the wet, muddy and changing conditions commonly encountered during nighttime pest control and field shooting.

The H50R and L35R share the same fundamental BOLT concept, including integrated rangefinding, ballistic calculation and the traditional riflescope format, but their thermal specifications differ substantially.

L35R	384×288 | ≤20mK | 35mm F1.0 | 50Hz | 3.5–14× | ~1,800m detection
H50R	640×512 | ≤18mK | 50mm F1.0 | 60Hz | 3–24× | ~2,600m detection

The H50R's 640×512 detector contains almost three times as many thermal pixels as the L35R's 384×288 detector.

It also improves thermal sensitivity, increases the refresh rate to 60Hz and uses a longer 50mm objective lens.

The difference between the P25R and H50R is substantial rather than incremental.

P25R	256×192 | ≤20mK | 25mm F1.0 | 50Hz | 3.5–14× | ~1,300m detection
H50R	640×512 | ≤18mK | 50mm F1.0 | 60Hz | 3–24× | ~2,600m detection

The H50R contains well over six times as many native thermal pixels as the P25R.

That difference becomes especially apparent as distance increases or magnification is used.

The H50R is the BOLT model for users who want significantly better image quality without moving into NocPix's more expensive premium scope families.

It is particularly well suited to:

• Medium and longer-distance pest control
• Large fields and open ground
• Users who frequently use digital magnification
• Shooters who want 640-resolution thermal detail
• Users who want integrated LRF and ballistic calculation
• Those who prefer a traditional riflescope-style thermal optic

If value is more important than ultimate image detail, the L35R is the more economical middle option. If the lowest possible purchase price is the priority, the P25R is the entry point into the BOLT range.

Model	NocPix BOLT H50R
Device Type	Thermal imaging riflescope with integrated LRF
Thermal Sensor	640×512
Pixel Pitch	12μm
NETD	≤18mK
Frame Rate	60Hz
Objective Lens	50mm F1.0
Magnification	3–24×
Field of View	8.8° × 7.0°
Field of View at 100m	Approximately 15 × 12m
Thermal Detection Range	Up to approximately 2,600m
Image Processing	R+ AI image algorithm
Laser Rangefinder	Integrated periscope-style LRF
LRF Range	Up to approximately 1,200m
Ballistic Calculation	Yes
Eye Relief	50mm
Exit Pupil	10mm
Power System	Built-in rechargeable battery + replaceable rechargeable 18650 battery
Maximum Stated Runtime	Up to approximately 9 hours
Photo Recording	Yes
Video Recording	Yes
Audio Recording	Yes
Recoil Activated Video	Yes
Wireless Connectivity	N-LINK compatible
Body Material	High-strength aluminium alloy
Ingress Protection	IP67

The NocPix BOLT H50R is supplied with the thermal riflescope and the principal power, charging and maintenance accessories required for normal use.

• NocPix BOLT H50R Thermal Imaging Scope with LRF
• Rechargeable 18650 battery
• Charging equipment for the battery system
• USB charging/data cable
• Lens cleaning cloth
• Protective accessories
• Product documentation / quick-start information

The scope also incorporates its internal rechargeable battery as part of the dual-power system.

Package contents may be revised by the manufacturer or vary slightly between distribution batches, so the physical contents supplied with the product take precedence.

The NocPix BOLT H50R is covered by NocPix's manufacturer's warranty, with separate warranty periods applying to the main device, rechargeable batteries and thermal detector.

Main Device	3 years
Rechargeable Battery / Batteries	2 years
Thermal Detector	10 years

For qualifying products purchased through an authorised or certified dealer, the warranty period starts from the purchase date shown on the original invoice.

The manufacturer's warranty covers qualifying failures resulting from material, manufacturing or production defects under normal use during the applicable warranty period.

Warranty cover does not include accidental damage, misuse, improper use or storage, unauthorised modification, disassembly or repair, inappropriate power input or other circumstances excluded by NocPix's full warranty terms.

Please retain your Bamfords Online invoice as proof of purchase. If a potential warranty issue develops with your BOLT H50R, contact Bamfords Online and we can assist with the warranty process.

What sensor does the NocPix BOLT H50R use?

It uses a 640×512 thermal detector with a 12μm pixel pitch.

What is the thermal sensitivity?

The BOLT H50R is rated at ≤18mK NETD.

What lens does the H50R use?

It uses a 50mm F1.0 germanium objective lens.

What magnification does it have?

The H50R provides 3–24× magnification.

What is the field of view?

The H50R provides an 8.8° × 7.0° field of view, equivalent to approximately 15 × 12 metres at 100 metres.

How far can the BOLT H50R detect?

NocPix states a maximum thermal detection range of approximately 2,600 metres under specified conditions. This is a detection distance, not a positive identification range.

Does the BOLT H50R have a laser rangefinder?

Yes. It includes an integrated periscope-style laser rangefinder with a maximum stated ranging distance of approximately 1,200 metres.

Does it have ballistic calculation?

Yes. The H50R includes onboard ballistic calculation which can work with measured range and configured ballistic data.

How does the H50R compare with the L35R?

The H50R upgrades from 384×288 to 640×512 resolution, improves thermal sensitivity from ≤20mK to ≤18mK, increases the refresh rate from 50Hz to 60Hz and uses a longer 50mm lens.

How much more resolution does the H50R have than the P25R?

The H50R's 640×512 detector contains well over six times as many native thermal pixels as the P25R's 256×192 detector.

What battery does the BOLT H50R use?

It uses a dual-power system combining an internal rechargeable battery with a replaceable rechargeable 18650 battery.

How long does the H50R battery last?

NocPix states up to approximately 9 hours for the H50R under specified conditions. Actual runtime varies with temperature and use of Wi-Fi, recording and laser ranging.

Can the BOLT H50R record video?

Yes. It supports onboard photography, video recording, audio recording and Recoil Activated Video.

Can I connect it to an app?

Yes. The BOLT platform supports N-LINK connectivity for compatible NocPix wireless functions.

Is the BOLT H50R waterproof?

It carries an IP67 ingress-protection rating.

Which BOLT is best?

The H50R is the highest-performance model in the current BOLT family. The L35R offers a lower-cost middle ground, while the P25R is the most accessible entry model.

What warranty does the BOLT H50R have?

NocPix's standard warranty provides 3 years for the main device, 2 years for rechargeable batteries and 10 years for the thermal detector, subject to the manufacturer's warranty terms.