The dual aperture model Spectrophotometer CM-26d and the single aperture Spectrophotometer CM-25d enables digital color data management across increasingly globalized supply chains. It is ideal for evaluating color of automotive interior parts and smartphones/tablets exterior.

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Spectrophotometer CM-26d / CM-25d

The new d:8° portable sphere Spectrophotometer CM-26d and Spectrophotometer CM-25d were developed for true “Digital Color Data Management” to help minimize the need of physical samples within a supply chain.

With tight inter-instrument agreement levels of ∆E*ab< 0.12 (CM-26d) and high repeatability of σ∆E*ab 0.02 (CM-26d), the CM-26d and CM-25d ensures measurement data communicated within a supply chain remain consistent.

The CM-26d and CM-25d comes with Configuration Tool CM-CT1 software (standard accessory) that allows user to not only create/write instrument settings, but also compiling it into a file and share it within its supply chain.

When used together with Spectramagic NX Software, the CM-26d and CM-25d allows user to create workflow instructions with images. The CM-26 and CM-25d comes with a viewfinder for accurate positioning on sample or small parts. The symmetrical and compact design, allows measurement of hard-to-reach areas like vehicle interior.

Spectrophotometer CM-26d / CM-25d

  • di:8°, de:8° (diffused illumination, 8° viewing angle)
  • High Inter-Instrument Agreement(IIA)
    • ∆E*ab< 0.12; Average of BCRA 12 Tiles (CM-26d)
    • ∆E*ab< 0.20; Average of BCRA 12 Tiles (CM-25d)
  • Changeable measuring apertures -Ø8mm or Ø3mm measurement areas (CM-26d)
  • Viewfinder for easy target alignment
  • JOB function*1 for creating workflows (with graphical instructions)
  • Configuration Tool CM-CT1 software (standard accessory)
  • Bluetooth ready

*1 Setting enabled by SpectraMagic NX (Ver. 2.9 or later, sold separately).


Spectrophotometer CM-26d / CM-25d

Model CM-26d CM-25d
Illumination/ viewing system di: 8°, de: 8° (diffuse illumination: 8° viewing)

SCI (specular component included) / SCE (specular component excluded) switchable

Integrating sphere Ø54 mm
Light source Pulsed xenon lamp ×2 Pulsed xenon lamp ×1
Detector Dual 40-element silicon photodiode arrays Dual 32-element silicon photodiode arrays
Spectral separation device Planar diffraction grating
Measurement Wavelength range 360 to 740 nm 400 to 700 nm
Measurement Wavelength pitch 10 nm
Half bandwidth Approx. 10 nm
Reflectance Measurement range 0 to 175%; Display resolution: 0.01
Illumination area MAV : Ø12 mm

SAV : Ø6 mm

MAV : Ø12 mm
Measurement area MAV: Ø8 mm

SAV: Ø3 mm

MAV : Ø8 mm
Repeatability Standard deviation within ΔE*ab 0.02 Standard deviation within ΔE*ab 0.04
(When a white calibration plate is measured 30 times at 5-second intervals after white calibration)
Inter-instrument agreement Within ΔE*ab 0.12 Within ΔE*ab 0.20
(Based on average for 12 BCRA Series II color tiles; MAV SCI; compared to values measured with a master body under KONICA MINOLTA standard measurement conditions)
UV adjustment UV 100% / UV 0%
Observer 2° observer angle, 10° observer angle
Illuminant A, C, D50, D65, F2, F6, F7, F8, F10, F11, F12, ID50, ID65, User-defined illuminant*1

(Simultaneous evaluation with two light sources possible)

Display items Colorimetric values/graph, color difference values/graph, spectral graph, pass/fail judgment, pseudocolor
Colorimetric values L*a*b*, L*C*h, Hunter Lab, Yxy, XYZ, and color difference in these spaces; Munsell (C)
Indexes MI, WI (ASTM E313-73), YI (ASTM E313-73, ASTM D1925),
ISO brightness (ISO 2470), WI/Tint (CIE), Strength, Opacity,
Grey scale, 8° gloss value, User index *1
Color difference equations ΔE*ab (CIE1976) / ΔE94 (CIE1994) / ΔE00 (CIE2000) / CMC (l:c) / Hunter ΔE / DIN99o
Applicable standards DIN 5033 Teil 7, JIS Z 8722 Condition “c”, ISO 7724/1, CIE No.15
Measurement time Approx. 0.7 sec. (Measurement mode: SCI or SCE)

(From pressing trigger button to measurement completion)

Minimum measurement interval Approx. 1.5 sec (Measurement mode: SCI or SCE)
Data memory 1,000 target data + 5,100 sample data
Battery performance Measurement mode: SCI or SCE

Approx. 3,000 measurements (approx. 1,000 measurements when using Bluetooth) when measurements are taken at 10-second intervals at 23°C with the dedicated lithium battery

Viewfinder function Available (with white LED illumination)
Display 2.7″ color TFT-LCD with reversible portrait viewing mode
Display language English, Japanese , German, French, Italian, Spanish, Simplified Chinese, Portuguese, Russian, Turkish, Polish
Interface USB 2.0; Bluetooth (SPP-compatible. Optional Bluetooth module required)
Power Dedicated lithium-ion battery (removable), USB bus power (with lithium-ion battery installed),
Dedicated AC adapter (with lithium-ion battery installed)
Charging time Approx. 6 h
Operating temperature/

humidity range

Temperature: 5 to 40°C, Relative humidity: 80% or less (at 35°C) with no condensation
Storage temperature/

humidity range

Temperature: 0 to 45°C, Relative humidity: 80% or less (at 35°C) with no condensation
Size Approx. 81 (W) × 93 (H) × 229 (D) mm
Weight Approx. 630 g Approx. 620 g

Specifications are subject to change without prior notice.

*1 Optional Color Management Software SpectraMagic NX is required for setting user-configured illuminants or user indexes.


Spectrophotometer CM-26d / CM-25d

Catalog Download: Download PDF (3.5MB)

Owner’s Manual: Download PDF (16.4MB)