CM-26dG Spectrophotometer

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The CM-26dG spectrophotometer is the next generation of portable sphere spectrophotometer with an integrated 60-degree gloss sensor allowing distinct color and appearance measurements within one instrument. CM-26dG spectrophotometer horizontal alignment can fit into narrow spaces and is convenient for high-precision color and gloss measurement of smooth or textured samples.

With its lightweight ergonomic design gives easy operation to both right or left-handed users, with the optional Bluetooth™ and high-resolution TFT color display, the CM-26dG spectrophotometer is perfectly suited for applications in the field.

The CM-26dG portable spectrophotometer offers unprecedented accuracy/inter-instrument agreement (IIA), usually reserved for laboratory-grade instrumentation. This precision will allow superior color communication throughout the supply chain from supplier to final assembly. The inter-instrument agreement of the chromaticity value (average for 12 BCRA color tiles) is within ΔE 0.12 for the CM-26dG spectrophotometer, an improvement of about 40% from previous models.

The CM-26dG spectrophotometer can switch between Ø8mm and Ø3mm measurement areas for measuring parts of different sizes. In addition, the CM-26dG spectrophotometer is equipped with an illuminated viewfinder for accurate positioning on patterned subjects or small parts. The instrument surfaces, which come in contact with the measurement subject, are designed to minimize subject damage giving repeatable results.

The CM-26dG spectrophotometer offers additional features to improve workflow, eliminate waste/rework, and offer customers general cost savings on color related processes.

Available as a free download is the CM-CT1 Configuration Tool software that allows users to create/write instrument settings as well as compile it into a file and share it within its supply chain to ensure instrument settings are consistent. Being able to filter stored data based on additional information (tagging) as well as image-based workflows for easy and simple usage by operators with limited instrument experience, it sets a new standard for easy and fast data handling. Combined with a reduced measurement time, this allows users of all levels to maintain high levels of productivity, accuracy, and consistency.

PDF Click here for the CM-26dG Brochure.


  • d°:8° geometry with Xenon Flash technology and optical sample viewer
  • Integrated 60°-gloss sensor
  • Two measurement areas: MAV (8mm) and SAV (3mm)
  • Best-in-class Inter-Instrument-Agreement for true “Digital Color Data Management”
  • Connectable via USB and optional Bluetooth™
  • Large and easy-to-read high-resolution 2.7” TFT color display
  • Group sorting of data by user-definable tags
  • Image-based workflows


The information, specifications, and product appearance provided in this news release are subject to change without notice.





Illumination/ viewing system

di:8°, de:8° (complies to DIN5033-7, JIS Z 8722c, ISO7724/1, CIE No.15)

Integrating sphere



Dual 40-element silicon photodiode array

Spectral separation device

planar diffraction grating

Wavelength range

360-740 nm

Wavelength pitch

10 nm

Half bandwidth

approx. 10 nm

Measurement range


Resolution: 0.01%

Light source

Pulsed Xenon lamp

Light source life time

more than 1 Million

Illumination area

12.0×12.5 mm

Measurement area

MAV: Ø8.0 mm

SAV: Ø3.0 mm

Measurement time

approx.1sec (SCI or SCE + gloss measurement)

Min. measurement interval

approx.2sec (SCI or SCE + gloss measurement)


Standard deviation within ΔE*ab 0.02


within ΔE*ab 0.12 (MAV/SCI) Average for 12 BCRA Series II color tiles compared to values measured with master body.

UV control

UV100 / UV0


2°, 10°


A, C, D50, D65, F2, F6, F7, F8, F10, F11, F12, ID50, ID65, User Illuminant

Displayed data

Spectral values/graph, Colorimetric values/graph, Color-difference values, Pass/Fail Judgement, Pseudocolor, Graphical Workflows (Job)

Colorimetric data

L*a*b*, L*C*h°, HunterLab, Yxy, XYZ, and Color Differences in these color spaces, Munsell


MI, WI (ASTM E313), YI (ASTM E313, ASTM (1925), ISO Brightness (ISO2470), WI/Tint (CIE), DIN99o, Strength, Opacity, Greyscale

Color difference formulas

ΔE*ab (CIE1976), ΔE94 (CIE1994), ΔE00 (CIE2000), ΔECMC (l:c), HunterΔE, ΔE99o (DIN6172)


Measurement geometry

(complies to ISO 2813, ISO 7668, ASTM D523-08, ASTM D2457-13, DIN 67530, JIS-Z8741, JIS-K5600)

Light source

White LED


Silicon photo diode

Measurement range

0-200 GU

Resolution: 0.01 GU

Measurement area

MAV: Ø10.0 mm

SAV: Ø3.0 mm


0-10 GU: 0.1 GU

10-100 GU: 0.2 GU

>100 GU: 0.2% (Standard deviation)


0-10 GU: ±0.2 GU

10-100 GU: ±0.5 GU (MAV)











Data memory

Targets: 1.000

Sample: 5.000

Battery performance

approx. 3.000 measurement/charge

approx.1.000 measurement/charge when using Bluetooth™ communication


2.7 inch TFT color LCD


English, German, French, Italian, Spanish, Portuguese, Russian, Turkish, Polish, Chinese (Simplified), Japanese


USB2.0, Bluetooth™ (optional)


Rechargeable Lithium-ion battery, USB bus power

Charging time

approx. 6 hours at complete discharge

Operation temperature/

humidity range

5-40°C / rH 80% or less (at 35°C) with no condensation

Storage temperature/

humidity range

0-45°C / rH 80% or less (at 35°C) with no condensation

Size [mm]


Weight [g]

Approx. 660 g