Luna Optics LN-QD-B50 Quantum Digital 2K Night Vision Binocular Specifications

Quantum Digital CMOS Sensor for Day and Night Viewing

The LN-QD-B50 uses Luna Optics' Quantum Digital QHD CMOS sensor, with a native resolution of 2560 × 1440 pixels and a published sensitivity rating of 0.0015 lux. The sensor captures the image that is processed and shown on the binoculars' AMOLED displays or saved as a photo or video.

The sensor is designed for both daytime and nighttime observation. In low-light conditions, its sensitivity helps it make use of available light, while the built-in IR illuminator can supply additional infrared light when the scene is too dark for useful viewing without illumination.

For a deeper explanation of how sensor resolution, pixel size, and sensitivity affect digital night vision, read our guide to night vision CMOS sensors, resolution, and sensitivity.

6x Optical Magnification with Digital Zoom up to 36x

The LN-QD-B50 provides 6x optical magnification, with digital magnification up to 36x. Optical magnification is provided by the lens system; digital magnification enlarges the captured image to make a subject appear closer on the display.

Electronic image stabilization is available at the 6x optical setting to help reduce the effect of small hand movements when observing a subject. At higher digital magnification, movement becomes more noticeable and image softness or noise may be easier to see.

For help understanding how the two forms of magnification differ, see Digital Zoom vs. Optical Zoom in Night Vision.

Integrated 850nm Infrared Illuminator

The built-in 850nm, 1W infrared illuminator provides additional light for the sensor when ambient light is insufficient. This allows the LN-QD-B50 to produce an image in darker conditions than may be possible using available light alone.

The illuminator uses 850nm infrared light, a common wavelength for digital night vision. Some 850nm emitters can produce a faint red glow at the source, although the infrared illumination itself is not normally visible as a beam to the unaided eye.

Luna Optics advertises nighttime visibility of up to 600 meters (654 yards). Actual visibility depends on the target, atmospheric conditions, ambient light, focus, and use of the IR illuminator. Detecting an object at a distance does not necessarily mean there is enough detail to identify it.

Learn how wavelength affects image brightness and visible emitter glow in our guide to 850nm vs. 940nm infrared illuminators and laser IR.

Integrated Laser Rangefinder up to 1,000 Meters

The LN-QD-B50 includes a laser rangefinder rated to measure distances up to 1,000 meters (1,100 yards). It provides a distance reading to help you understand how far away a target is, rather than relying only on visual estimates.

The rangefinder's maximum measurement distance is separate from the binoculars' advertised nighttime visibility range. Rangefinder performance depends on factors such as the target's size, reflectivity, and environmental conditions. A distance reading does not guarantee that a target can be clearly identified at the same distance.

If longer-range measurement is a priority, consider the LN-QD-B50-PRO or the LN-QE-B50 Quantum Elite, both rated for rangefinding up to 1,500 meters.

QHD Video Recording and 16.1MP Still Images

The LN-QD-B50 records video at up to 2560 × 1440 pixels in QHD at 30 frames per second, with FHD recording available at 60 frames per second. It also captures still images at 5360 × 3008 pixels, advertised as 16.1 megapixels.

QHD recording preserves more pixel detail than standard Full HD recording, while 60 fps FHD video can provide smoother motion capture. These options let you choose between higher video resolution and a higher frame rate, depending on what you want to record.

Saved photo resolution describes the output image dimensions and is not the same as the sensor's native resolution. The amount of useful detail in a recording also depends on focus, lighting, sensor performance, and processing.

Dual AMOLED Displays and Multiple Viewing Modes

The binoculars use two 0.39-inch AMOLED displays, each with a resolution of 1024 × 768 pixels. Available image modes include daytime color, nighttime color, black and white, green phosphor, white phosphor, and amber.

These modes allow you to select an image presentation that suits the scene and your viewing preference. Monochrome modes can make contrast easier to interpret in some nighttime conditions, while color modes are useful for daytime observation and suitable low-light situations.

The internal displays are specified for operation at temperatures as low as -22°F (-30°C), making the LN-QD-B50 suitable for a range of cold-weather outdoor applications within its stated operating limits.

Daytime Color-Enhancing Filter

The LN-QD-B50 includes an internal automatic daylight color-enhancing filter that also functions as an infrared filter. In daylight, the filter helps maintain natural-looking color by blocking infrared light that could affect the image. When the IR illuminator is activated for nighttime viewing, the filter automatically disengages so the sensor can use the infrared illumination.

This automatic operation supports both daytime and nighttime use without requiring the user to manually switch an external filter. For more background on this technology, read Why Does Digital Night Vision Work During the Day?

Wi-Fi Streaming, microSD Recording, and External Power

The LN-QD-B50 supports Wi-Fi connectivity with compatible iOS and Android devices, allowing you to stream the image to a compatible mobile device. Photos and videos can be saved to a microSD card with a supported capacity of up to 512GB.

The binoculars can run on four CR123A batteries or use an external 5V/2A power bank connected through USB-C. The manufacturer advertises up to 4.5 hours of operation with the IR illuminator off when using batteries under its stated test conditions. Actual runtime varies with temperature, display settings, recording, and IR use.

The micro-HDMI output supports 1080p video output to a compatible external display. This can be useful when viewing the image on a larger screen or sharing observations with others.

LN-QD-B50 vs. LN-QD-B50-PRO vs. LN-QE-B50

The LN-QD-B50 is part of Luna Optics' Quantum Digital and Quantum Elite lineup. The LN-QD-B50-PRO shares the QD-B50's core Quantum Digital sensor and 850nm illuminator but offers a rangefinder rated up to 1,500 meters. The LN-QE-B50 adds a higher-resolution Quantum Elite sensor, a lower published lux sensitivity rating, dual 850nm and 940nm IR illumination, and a longer advertised nighttime visibility range.

For a detailed breakdown of the technical differences and how they affect real-world observation, read our guide to Luna Optics LN-QD-B50 vs. LN-QD-B50-PRO vs. LN-QE-B50.

You can also view the adjacent models here:

• Luna Optics LN-QD-B50-PRO Quantum Digital PRO 2K Night Vision Binocular
• Luna Optics LN-QE-B50 Quantum Elite Digital Night Vision Binocular