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ZEN C50 640 Thermal Clip-On | Perfectly Balanced. Factory Pre-Zeroed.

More thermal detail. The day optic you know.
640 thermal sensor · 50 mm lens · Factory-collimated clip-on

$2,950.00 USD

Available to order · Ships in 2–3 weeks

Shipping calculated at checkout.

SKU: C50-B

Color: Black

Need help choosing a configuration? Call +1 (469) 498-1090.

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Compare C Series models

C35

A practical first thermal clip-on.

384 × 288 · 35 mm f/1.0 · Laser rangefinder: Not built in

Device weight: 14.46 oz

$1,850.00 USD Explore C35

C50 You’re viewing

640 detail for the day optic you know.

640 × 512 · 50 mm f/1.0 · Laser rangefinder: Not built in

Device weight: 13.75 oz

$2,950.00 USD

C50R

Thermal detail and ranging for your day optic.

640 × 512 · 50 mm f/1.0 · Laser rangefinder: 1,312 yd

Device weight: 14.99 oz

$3,250.00 USD Explore C50R

Full series comparison

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Product details

The ZEN C50 pairs a 640 thermal sensor with a 50 mm lens for hunters who need more detail and reach across fields, pastures and open country. Its clip-on format keeps your familiar day optic and shooting position in place.

Lightweight magnesium-alloy housing helps maintain rifle balance
Factory-collimated optical system
Compatible with selected objective adapters and aligned Picatinny setups

Best for: Long-range predator and hog hunters who prefer a day-scope-based setup without an integrated rangefinder.

Setup note: Confirm the adapter, centerline height and zero before hunting.

Modular adapter setup

Zentron C Series uses an M45 × 0.75 eyepiece thread. For a modular scope-clamped setup, start with the matching device-side M45 × 0.75 connector ring (also called an adapter ring), then add the matching scope-side modular clamp. Select the clamp by the measured outside diameter of the day optic’s objective housing at the clamping location.

Use a matched Rusan or Smartclip modular system and confirm the exact components before ordering.

View details

640 detail for open ground

The C50 pairs a 640 × 512 sensor with a 50 mm f/1.0 objective lens. Built for hunters who want more thermal detail across fields, pastures and open country.

Add thermal to your day optic

Fit the factory-collimated clip-on ahead of a compatible day scope. Use the correct objective adapter or aligned Picatinny setup, then verify fit, optical alignment and zero before use.

Menus that fit your day optic

Easy Mode emphasizes frequently used functions with larger icons and text. UI Zoom lets you adjust menu size to suit your day-scope view.

IP67 Protection

Magnesium housing with an IP67 protection rating.

64GB Recording

Photos, video and recoil-activated pre-record. The virtual reticle appears in recordings only, not in the live clip-on view.

Compass & Tilt

Integrated digital compass and accelerometer.

Easy Bluetooth connection

Turn on device Bluetooth and open ZSYNC to find and connect your device, without typing a Wi-Fi password. Enjoy live view, remote controls and media downloads. Update your app and device firmware first (ZSYNC 3.0.0+; firmware V2.01+).

Compact magnesium housing

Listed device weight: 13.75 oz. Allow for the weight of your chosen adapter and mount.

Replaceable field power

Two replaceable 18350 batteries. Up to 6 hours of runtime; battery life varies with settings, temperature and use.

From setup to thermal observation

A closer look at the C50 clip-on in an outdoor setup. 38-second field film.

Sensor resolution: 640 × 512
Objective lens: 50 mm f/1.0
Weight: 13.75 oz
Thermal sensitivity (NETD): ≤20 mK
Optical magnification: 1×
Battery life (max.): 6 hours

View full specifications Hide full specifications

Sensor & Imaging

C50 specifications — Sensor & Imaging
Detector type	VOx uncooled
Resolution	640 × 512
Pixel pitch	12 μm
Frame rate	50 Hz
Spectral range	8–14 μm
NETD	≤20 mK

Optics

C50 specifications — Optics
Objective lens	50 mm f/1.0
Field of view	8.7° (H) × 7° (V)
Close focus	5 yd
Detection range	2,800 yd
Optical magnification	1×

Display & Features

C50 specifications — Display & Features
Display type	OLED
Display resolution	1920 × 1080
Digital zoom	Clip-on mode: 1× Monocular mode: 2.3–18.4×
Color palettes	Multiple thermal palettes
Connectivity	Wi-Fi, Bluetooth & microphone
Built-in memory	64 GB
Start-up time	Less than 5 seconds
Sensors	Built-in accelerometer and digital compass

Power

C50 specifications — Power
Battery	2 × 18350
Maximum battery life	6 hours
USB interface	USB Type-C

Physical

C50 specifications — Physical
Dimensions	5.78 × 2.55 × 2.91 in
Weight	13.75 oz
Housing material	Magnesium alloy
Connection thread	M45 × 0.75

Environmental

C50 specifications — Environmental
Protection rating	IP67
Operating temperature	−4°F to 122°F
Storage temperature	−40°F to 122°F
Maximum recoil	1,000 g / 0.4 ms; rated up to .300 Win. Mag. and 7mm Rem. Mag.

Need help with setup or service? Contact Zentron Support