Sekonic C-4000 SPECTROMETER

The Dream Tool for Lighting Designers

Industrial lighting application requires accuracy, consistency, correct measurement, and analysis. The Sekonic C-4000 Spectrometer is engineered to meet the highest standards of light evaluation, delivering cutting-edge color accuracy, spectral data, and real-time analysis. Simplicity and advanced functionality are at the core of this design, with the C-4000 seamlessly blending into any workflow and ensuring that the user's lighting decisions are backed by scientific precision. Featuring an intuitive touchscreen display and an ergonomic design, the Spectrometer empowers users to capture, analyze, and adjust lighting conditions with ease. 

With the C-4000, you can record and optimize the aspect of your light source from color temperature and spectral distribution to illuminance and CRI, giving you full control over your lighting environment. 

Unmatched Color Measurement Accuracy

Lighting conditions can make or break a scene, which is why precise color measurement is essential. The C-4000 provides:

• Wide Color Temperature Range: Measure from 1,600 to 40,000K, covering a vast spectrum of lighting scenarios.
• Advanced Color Analysis: Displays chromaticity coordinates (CIE 1931), color rendering index (CRI) and TM-30-18 for complete light evaluation. 
• Spectral Distribution Graphs: Analyze how your light source distributes energy across various wavelengths, ensuring true-to-life colors in any setting. 

Versatile Light Quality Analysis

Understanding light beyond its basic temperature is crucial for professionals who require consistent and reproducible lighting:

• Illuminance Measurement: Capture lux values to determine the brightness level of any light source.
• CRI and TM-30-18 Assessment: Evaluate the ability of a light source to accurately render colors. This is essential for all lens/light-based work. 
• Peak Wavelength Detection: Identify the dominant wavelengths within a light source to match industry standards for color accuracy. 

User Friendly Touch Screen Interface

The C-4000 features a 2.7-inch full-color touchscreen display for a seamless and intuitive user experience. With quick access to data visualization and measurement settings, users can:

• Easily navigate measurement modes without complex button controls.
• View real-time data analysis directly on the screen.
• Switch between continuous and single measurement modes for flexibility in light analysis. 

Compact, Portable and Ergonomic Design

Designed with convenience in mind, the C-4000 Spectrometer is built for professionals who need mobility without compromising accuracy:

• Lightweight and handheld: Weighing only 0.30 lb, it is perfect for on-the-go measurements. 
• Ergonomic Grip - Designed to fit comfortably in one hand, it is easy to use in the field. 
• Durable Construction - Built for rugged professional environments, ensuring long-lasting performance. 

Advance Connectivity for a Smarter Workflow

• Bluetooth and smartphone integration with the Sekonic LD App

Sekonic C-4000 Specs

Meter Type	Spectrometer
Spot Metering	No
Flash Metering	Cordless
Light Readings	CIE1931/CIE1964, CRI (Color Rendering Index), Lux
Measuring Modes	Spectrum Graphics
Display	2.7" / 6.9 cm Touchscreen LCD
System Connection	USB-C
Battery	2x AA

Spot Metering	No
Flash Metering	Cordless

Light Readings	CIE1931/CIE1964, CRI (Color Rendering Index), Lux
Measuring Modes	Spectrum Graphics
Illuminance Range	5 to 10,000 Lux / 0.5 to 929 fc
Color Temperature Range	16,000 to 40,000K
Exposure Memory	Yes, 99 Readings

Receptor Element	CMOS
Display	2.7" / 6.9 cm Touchscreen LCD
System Connection	USB-C
Media Card Reader	No
Tripod Mounting Thread	No
Operating Conditions	41 to 95°F / 5 to 35°C
Storage Conditions	14 to 140°F / -10 to 60°C

Battery	2x AA
Wireless	Bluetooth *Built-In
Dimensions	Meter: 5.5 x 2.4" / 140 x 62 mm
Weight	0.3 lb / 140 g (without Batteries)

Package Weight	1.215 lb
Box Dimensions (LxWxH)	10.1 x 6.5 x 3.7"