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PixFra Sirius S650D Review – Dual-lens technology for more detail in the field

February 26, 2026
Author: Stephan

The PixFra Sirius S650D – The brightest star in the thermal imaging sky?

With the Sirius S650D provides PixFra breast current top model before – a thermal imaging device with two integrated lenses, A 25 mm-lens for a broad overview and 50 mm-Lens for precise details They work hand in hand here. Switching between lenses is done via a rotating ring and functions like a digital "zoom magnifying glass". Thus, they are available two fields of vision available in a compact device – approximately 30 m on the 25 mm and 15 m on the 50 mm lens.

The PixFra Sirius S650D Review

The scope of delivery of the PixFra Sirius S650D

The PixFra The Sirius S650D comes with everything you need for immediate use.

The scope of delivery includes:

  • Carrying bag with strap
  • Two 18650 batteries
  • Charging cradle with USB-C port
  • USB-C cable
  • Hand Strap
  • Lens cleaning cloth
  • QuickstartGuide

Features

The PixFra Sirius S650D shows impressively, how much Offering today it's contained in a compact thermal imaging device. 640 × 512 pixel VOX sensor with a 12 µm pixel pitch razor-sharp, high-contrast images – even in fog, twilight, or dense vegetation. With a NETD value of ≤ 18 mK, the device detects subtle temperature differences and presents details particularly clearly.

The Dual-lens system with 25 mm and 50 mm Focal length is the The heart of the device. About a precise rotating mechanism let yourself lightning fast between both lenses switch – without interruption or refocusing. The 25 mm-Lens offers a wide field of vision of about 30 m at 100 m for an overview of the terrain. 50 mm-lens, with a 15 m field of vision, brings distant objects closer – ideal for safe approach and for detailed observations.

The OLED display With 1920 × 1080 pixels, it ensures a bright, calm and flicker-free imageContrasts are clearly presented, and the eyes remain focused even during prolonged observation. relaxedThe menu allows you to select several color palettes, e.g. White Hot, Black Hot, Iron Red or Amber – the right mode for every environment.

Our preview of 64 GB internal storager offers the device plenty of space for photos and videos. Per WiFi can the PixFra S650D directly connected to the app will be used to take photos to transmit wirelessly or Live images on the smartphone to see. The USB-C-connection also enables fast loading and a stable one Data Connection.

At the Energy and battery concept sets PixFra at practicalityThe device uses standard 18650 batteries, which thanks to the clever system switch in seconds Leave it. The lid is secured with a band, the plus symbol shows the insertion direction – so changing the cartridge works even in the dark. One battery charge realistic four to six hours, ideal for sitting in a hide or stalking.

 

  • intuitive usability
    The Operation is oriented at the proven PixFra-Concept: three buttons at the top for menu, zoom and recording as well a lateralIlluminated power button. So that remains the device clear and intuitive – Ideal for nighttime use. The device is pleasantly easy to handle.
  • Dual-lens system
    The big advantage It lies in the dual-lens control: A rotating ring alternates between 25 mm and 50 mm – without restarting or using the menu. This is how you adjust the image crop. lightning fast on – from broad overview to precise detail.
  • Clever battery swapping system
    The battery replacement system deserves special praise: Simply open the sliding latch, remove the cover, Replace battery – quick and easy – without effort and without fiddlingA strap gently pulls the battery out of its socket, and the housing clicks neatly back into place. This ensures the device remains quickly ready for use, even when wearing gloves.
  • Flexible eyepiece rubber
    The eyepiece rubber is flexible and foldable, ideal for glasses wearers. diopter adjustment works fine and stable, so that the image remains sharp even after several hours of use.

Technical details of the PixFra Sirius S650D review

Despite the dual optics, the PixFra The S650D is handy. Weighing only 640 g, it is pleasantly lightweight, robustly built, and protected against dust and splashing water according to IP67. The housing fits securely in the hand, the buttons respond precisely, and the illuminated power button makes operation easier at night. The flexible eyepiece rubber and the finely adjustable diopter adjustment make the device extremely comfortable even for eyeglass wearers.

Technical details at a glance:

The PixFra Sirius S650D
Sensor 640 × 512 pixels VOX
Sensor pitch 12 um
Sensor sensitivity ≤18mK
Display 1920 × 1080 pixel OLED display
frame rate 50 Hz
lens 25 and 50 mm
basic magnification 3.45 and 1.72 x
Field of view 30,7 and 15,4 m /100 m
detection distance 2600 m
Battery life 6 h
Internal memory 64 GB
recording Ja
WiFi function Ja
Weight with battery 640 gr

Our conclusion on PixFra Sirius S650D review

The Sirius S650D demonstrates PixFraThis is what makes a true high-end thermal imaging device. The combination of a dual-lens system, 640 sensor, and interchangeable battery system makes the device an indispensable tool for discerning hunters. Whether stalking, hunting from a stand, or patrolling game reserves – the S650D always offers the perfect field of view and impresses with excellent image quality. Anyone looking for a powerful, well-designed, and versatile thermal imaging device will find exactly what they need here. The dual-lens concept eliminates the need to change devices and delivers a stable, bright image at all times – a true high-end tool for hunters who refuse to compromise.

You have the right one Thermal Imager Haven't found it yet? Your team at Waermebild24 will be happy to help you. Simply fill out the form below Contact Form Contact us and we will find the right device for you. Or take a look at our product Finder ! With just a few questions, you can quickly and easily find the thermal imaging device that perfectly suits your needs. Happy hunting!

Simulate field of view width

Our “field of vision calculator” makes this clear Prepare the field of view at the respective distance. This simulation is intended to help you get a feel for how large the section you see through this thermal imaging camera is.

Field of View Calculator
Field of view width in meters

Tested product

PixFra Sirius S650D

Manufacturer information PixFra

PixFra is known for innovative thermal imaging cameras that offer high performance in a compact design. They are suitable for precise temperature measurements and a wide range of outdoor and security applications.

More products from PixFra can be found on our shop page for the manufacturer.

The hunting friends Stephan & Marco will advise you!

Stephan & Marco, thermal imaging experts

Phone: 03491 - 43 26 68
WhatsApp: 01590 - 483 39 73
Email: [email protected]

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