Zentron Q50 Thermal Rifle Scope

Quick Answer

The Zentron Q50 gives you the Q Series' longest reach and its detailed 640 image in the lightest 640 body in the line. It shares the flagship Q50R's exact optic — the same 640 sensor, 50mm lens, and 2600-meter detection range — but leaves off the built-in rangefinder, which makes it the smart pick for open-country hunters who want maximum reach and clarity without paying for ranging they don't need.

Zentron Q50 thermal scope — 640 thermal rifle scope with a 50mm lens and long-range detection for coyote, hog, and predator hunting.

Full Description

What is the Zentron Q50 built for?

The Q50 is built for the hunter who wants the Q Series' best reach and image without extras they won't use. It carries the same 640 sensor and long 50mm lens as the flagship Q50R, so it sees just as far and just as clearly — the one thing it leaves off is the built-in laser rangefinder. That focus makes the Q50 the lightest 640 scope in the series and, for many hunters, the sweet spot of the line: flagship-level optics in a leaner package. Like every Q Series model, it's built on the same rugged magnesium-aluminum body with soundless controls and the ZEN LINK recording system.

How good is the Zentron Q50's image quality?

The Q50 uses a 640 x 512 thermal sensor, the same high-resolution core found in the flagship. Resolution is how many pixels the scope puts on your target, and more pixels mean sharper edges, cleaner detail, and an animal that stays recognizable as you push into digital zoom instead of smearing into a soft shape. Behind the 50mm f1.0 lens, that detail is concentrated at distance, so the Q50 delivers a genuinely long-range image — the same optical performance that puts the Q50R at the top of the series. If image clarity and reach are your priorities, the Q50 gives you both.

How far can the Zentron Q50 see?

The Q50 has a detection range of up to 2600 meters, tied with the flagship for the longest in the Q Series. Detection range is the distance at which the scope can pick up a heat signature and tell you something warm is out there; identifying that animal and placing a confident shot happens closer in and depends on target size, terrain, and weather. The combination of the 640 sensor and 50mm lens is what gives the Q50 its long reach, making it a strong choice for wide fields, pasture edges, and open cut terrain where game appears at a distance.

What does the Zentron Q50 give up by not having a rangefinder?

The Q50 is identical to the flagship Q50R in sensor, lens, detection range, and field of view — the difference is that the Q50 does not include a built-in laser rangefinder. If you already range with a separate handheld unit, or you hunt at distances where you're confident calling range by eye, the Q50 gives you the flagship's reach and image for less. If you take longer shots where knowing exact distance changes your point of impact, the rangefinder-equipped Q50R may be worth the step up. For a lot of hunters, skipping the rangefinder is exactly the right trade — and it's why the Q50 is one of the most popular ways into 640, 50mm performance.

How much magnification does the Zentron Q50 have?

The Q50 runs a 2.3x base magnification and steps up to 4x and 8x with digital zoom. Base magnification is your true optical image and does the real work of finding and framing an animal; digital zoom enlarges that image to help confirm detail at distance, with some loss of sharpness. For most coyote and hog hunting, the base magnification is where you'll spend your time, with digital zoom held in reserve for a closer look far out. More zoom isn't automatically better — the Q50 gives you reach on demand while keeping a clean, usable image at its native magnification.

Is the Zentron Q50 built to hold up in the field?

Yes, and it does it while being the lightest 640 scope in the series. The Q50 weighs just 423 grams thanks to its synthetic magnesium-aluminum body, and it's IP67-rated against dust and water so wet, muddy conditions won't stop it. Its soundless buttons keep operation quiet on a stalk. Through the ZEN LINK app, the pre-record feature automatically saves the seconds before and after your shot to your phone, and the onboard 64GB media library lets you review footage right on the scope. Power comes from dual 18350 batteries good for up to 6 hours per set, and it ships with four rechargeable cells and a charger so a fresh set is always ready for a quick field-swap.

Where the Q50 Fits in the Zentron Q Series

Which Zentron Q Series thermal scope is right for you?

The Q Series is four thermal scopes on one shared platform, separated by sensor resolution, lens length, and whether they include a rangefinder. Here's where each one lands so you can see what the Q50 gives you and how it compares to the rest of the line:

• Zentron Q50: 640 sensor, 50mm lens, 2600m detection range, and the lightest 640 body in the series at 423g. Flagship-level reach and image without the built-in rangefinder — the value sweet spot for open-country hunting.  — this model

• Zentron Q50R: the same 640 sensor, 50mm lens, and 2600m reach as the Q50, plus a built-in laser rangefinder and the most sensitive sensor in the series. The flagship, for hunters who want ranging built in.

• Zentron Q635: a 640 sensor on a shorter 35mm lens, trading some reach for a noticeably wider field of view. The easiest model to scan and reacquire with, strong for closer or more varied terrain.

• Zentron Q35: a 384 sensor on the 35mm lens, the practical-value entry point to the series. A capable, lighter-on-the-wallet thermal scope that covers typical predator and hog distances with a clean image.

Full Specifications

Sensor

Resolution: 640 x 512

Detector type: VOx uncooled

Pixel size: 12 μm

Frame rate: 50 Hz

Spectral range: 8–14 μm

NETD: High sensitivity

Optics

Objective lens: 50mm f1.0

Field of view: 8.7° (H) x 7° (V)

Base magnification: 2.3x

Digital zoom: 2x, 4x, 8x

Close-up range: 5m

Detection range: 2600m

Display

Type: OLED

Resolution: 1920 x 1080

Power

Battery: 2 x 18350 (rechargeable)

Battery life: Up to 6 hours per set

Included: 4 batteries + charger

Interface: Type-C

Build

Housing: Magnesium-aluminum alloy

Protection: IP67

Weight: 423g

Dimensions: 158 x 65 x 74mm

Features

Digital compass, auto screen-off, soundless buttons, pre-record (via ZEN LINK app), onboard media library, Wi-Fi / Bluetooth, 64GB internal memory, multiple reticle and palette options.

FAQ

What is the difference between the Zentron Q50 and the Q50R?

The Q50 and Q50R share the same 640 sensor, 50mm f1.0 lens, 2600-meter detection range, and field of view, so they see equally far with the same image quality. The Q50R adds a built-in laser rangefinder and the most sensitive sensor in the series; the Q50 leaves the rangefinder off and comes in lighter at 423 grams. Choose the Q50 for flagship reach and clarity at a lower price; choose the Q50R if you want ranging built in.

Does the Zentron Q50 have a rangefinder?

No. The Q50 does not include a built-in laser rangefinder — that feature is unique to the flagship Q50R. If you range with a separate handheld unit or hunt at distances where you're comfortable estimating range, the Q50 gives you the same 640 image and 2600-meter reach without it.

What can you hunt with the Zentron Q50?

The Q50 is well suited to coyote, hog, and other predators and varmints. Its long detection range and detailed 640 image make it especially strong in open terrain, where game shows up at a distance and you need both reach and a clear picture to identify your target.

How far can the Zentron Q50 detect an animal?

The Q50 has a detection range of up to 2600 meters, tied for the longest in the Q Series. Detection range is how far the scope can pick up a heat signature; identifying that animal and placing a confident shot happens at shorter distances and depends on target size, terrain, and weather conditions.

Is a 640 thermal scope like the Q50 worth it over a 384 scope?

A 640 sensor like the Q50's puts more pixels on your target than a 384 sensor, which means sharper detail and easier identification at distance, especially as you zoom in. For hunters who take longer shots or want the clearest possible image, 640 is worth it. For closer, typical-distance hunting, a 384 scope like the Q35 remains a capable, practical choice.

How much does the Zentron Q50 weigh?

The Q50 weighs 423 grams, making it the lightest 640 model in the Q Series. It shares the same 50mm optic as the heavier flagship but skips the rangefinder module, so you get long-range 640 performance in the leanest package in the line.

How long does the Zentron Q50 battery last?

The Q50 runs up to 6 hours per set on dual 18350 batteries. It ships with four rechargeable batteries and a charger, so you can field-swap to a fresh set and keep hunting through the night without downtime.

Is the Zentron Q50 waterproof and durable?

The Q50 has an IP67 rating, meaning it's sealed against dust and protected against water, so it holds up to wet and dirty field conditions. Its magnesium-aluminum body keeps it light at 423 grams while staying rugged enough for regular hunting use.

Thermal Bros Take

The Zentron Q50 is the longer-reach option in the Q Series. If you like the idea of the Q635 but want a bigger 50mm lens for more open ground, the Q50 is the better fit. It keeps the 640×512 sensor, lightweight body, recording features, and handheld/scoped flexibility while giving hunters a more focused image for longer field setups.

If you mostly hunt tighter cover, smaller fields, or want a wider view, the Q635 may be the better all-around pick. If you want a 640 thermal rifle scope with a 50mm lens for open fields, predator hunting, hog hunting, and land management, the Zentron Q50 is the stronger option.