This is a review of the InfiRay Outdoor Tube TH50 Thermal Imaging Riflescope. This is InfiRay's brand new flagship model, with 50 mm optics and a powerful 12 μm 640×512 thermal sensor. The image is displayed on a round 1.03” Micro-OLED screen, with a 2560×2560 pixels resolution. All this technology has been cramped into a traditional-looking riflescope, which can be mounted using standard 30mm rings like any normal day scope.

The Tube TH50 looks like a normal riflescope, but it isn't. Here you're looking into the 50mm Germanium lens, an optical lens made of polished germanium. Lenses like these are rugged and resistant to corrosion, ideal for harsh environments and applications where there is constant exposure to the elements. Perfect for hunting!

Ergonomics

The hhousing is made out of aluminum, with a plastic hinged cover to protect the front lens. On top of the ocular, there are four buttons to control on/off, display settings, video recording and other software functions – easy to use and understand. Let me just say that the TH50 has more functions than I used, like the gravity sensor and a digital compass. The adjustable diopter has a rubber ring around it for comfort and friction. The eye relief is 50mm. The focus wheel is not too stiff, not too light.

Testing the InfiRay Tube TH50

TFB got the Tube TH50 a few months ago. I've tried it around the house, around the countryside, on the shooting range, at wildlife park and on various scouts and hunts. The mount is a Spuhr QDP-3002. I love this mount for testing since it has a quick attach/detach feature (works really well in darkness also) and holds the zero like nothing else I've tried.

This is a Picatinny rail camera mount on a gimbal on a carbon fiber tripod. The TH50 has 32GB of memory so you can record 48 hours of video and almost an endless amount of still images. These videos can be transferred to your smartphone or computer, and there are a few examples below.

Image Quality

The image quality and thermal performance are perhaps the most important factors of all, this is the first InfiRay riflescope I review, and I'm happy to say that the image quality is great! For some reason, I really liked the black hot on wild boar, and I'm typically a white or red hot kind of guy. It made the wild boar look like hedgehogs, but it worked. The temperature below is around +8C and some moisture from the ground.

Red hot in a wildlife park, distance about 30 meters. Sunshine and some clouds, daytime. Note the not-so-obvious deer in the back, around 200 meters away.

The TH50 has a built-in Wi-Fi module and a supporting app connection.

Conclusion

I can recommend the InfiRay Tube TH50 if you're looking for a high-end thermal riflescope. The screen resolution is very good and there is no uncomfortable noise. I really liked the image quality, you get good detail on the target but also the surroundings. The TH50 is much better in providing an overall good image. They have a more powerful thermal sensor at hand here, but it seems InfiRay worked with the algorithms as well and succeeded.

Below: As I was watching some wild boar, this little fella showed up. A healthy-looking fox at about 35 meters distance. Note that the tail is not very hot.

Here is a direct link to the InfiRay Tube TH50: https://www.infirayoutdoor.com/thermal-imaging-riflescope-tube-th50-series_p80.html

This article partly draws on the content of TFB Blog, the original review is as follows:

https://www.thefirearmblog.com/blog/2022/06/14/review-infiray-tube-th50-thermal-imaging-riflescope/