The basICColor DISCUS can deliver quality results at an efficient price point, and performs well with all display devices

The basICColor DISCUS uses encapsulated optics and thin-film glass filters to guarantee long term stability of measurement values, and has a peak luma capability of up to 2500 nits.

  • ColourSpace Integration
  • Large Spot Size
  • Glass Filters & Optics
  • Laser Pointer
  • 0.05 to 2500 cd/m2
  • Temperature Compensation

ColourSpace Integration

As with all probes, DISCUS operation and function is controlled via the Probe Options menu, accessed via the Profiling window.

The DISCUS has three main options that are directly associated with the probe - Integration Time, Calibration Settings (Matrix presets), and Probe Calibration - as well as generic probe settings, such as Extra Delay Time, Probe Matching, Probe Offset, etc.


Calibration Settings

Calibration Settings provides generic probe settings and preset Matrix options, as well as the Probe Calibration option.

Matrix Presets

The Drop-down menu provides access to the pre-set Matrices held within the DISCUS.
The Matrix presets match the probe to different display technologies - specifically the backlight/illumination spectral response.

Average Low Light

Average Low Light is a probe generic option, that averages multiple readings in low-light situations using an advanced algorithm built into ColourSpace. The algorithm varies based on the probe in use to provide the best possible results.

Enable Visible Feedback

Enable Visible Feedback enables the inbuilt laser pointer, assisting with probe alignment when profiling screens from a distance.

Probe Calibration

The Probe Calibration button will save a dark current calibration reading, used to improve reading accuracy in low-lights.
Make sure the cover is rotated to cover the probe sensor.

Integration Time

Integration Time sets the integration time for any given reading, using 4 presets 0-3

  • Normal Precision - uses short measurement times, and averages 4-6 measurements
  • High Averaging - uses short measurement times and averages 10 measurements
  • Long Integration - uses long measurement times and averages 4-6 measurements
  • High Averaging & Long Integration - uses long measurement times and averages 10 measurements

Normal Precision is the default, with setting High Averaging used for higher precision.
Long Integration and igh Averaging & Long Integration use integration times that are 4 times as long.

Integration Time Setting Normal Precision High Averaging Long Integration High Averaging
& Long Integration
Luminance (nits) Total Read Time (seconds)
3000 0.3 0.4 0.5 0.5
1500 0.4 0.5 0.5 0.7
750 0.6 0.9 0.7 1.0
375 1.0 1.5 1.0 1.5
188 0.4 0.5 1.8 2.8
94 0.5 0.8 2.3 5.3
47 0.9 1.4 1.1 1.6
23 1.7 2.7 1.9 2.9
12 2.2 5.3 2.4 5.5
6 4.3 10.4 4.5 10.6

Extra Delay Time

Extra Delay sets a time after the patch has been changed before probe measurement starts.
This can deal with delays in the image pipeline.

Probe Matching

Probe Matching is used to match the DISCUS Tristimulus to a Spectroradiometer, increasing the profile accuracy.

There are two different methods available for probe matching - 4 Colour Volumetric Matching (FCVM), and Multi-point Volumetric Matching (MPVM).
ColourSpace doesn't use the older, traditional, 4 Colour Matrix (FCMM) Method for probe matching, as the volumetric approach offers far greater probe matching accuracy.

Probe Offset

Probe Offset enables a user to manually enter offset values for different probes/display combinations.
Perceptual Colour Match is a preferable approach.

Additional Info.

Probe Matching