Colour temperature
Also known as color temperature, CCT, kelvin. Category: Lighting and optics
Colour temperature describes the hue of white light in kelvin (K): lower values are warmer (orange), higher values cooler (blue). Studio lights for product photography are usually daylight-balanced, around 5500 to 5600 K, and all lights in a set-up should match.
How PhotoRobot uses it
Some DMX-controlled lights used with PhotoRobot allow colour temperature to be set from PhotoRobot Controls. PhotoRobot notes that Broncolor Siros S strobes keep their colour stable when flash intensity changes, which avoids recalibrating colour when light settings change.
Related terms
- White balance: Adjusting an image so neutral whites and greys show no colour cast under the given light.
- CRI (colour rendering index): A 0–100 score of how faithfully a light source reproduces colours compared with a reference light.
- Continuous light: Lighting that stays on constantly, typically LED, so the effect is visible before shooting.
- Colour calibration: Adjusting cameras, lights and screens to a reference so colours are reproduced consistently.
Where this term appears on photorobot.com
Mentioned on 8 pages of photorobot.com:
- FOMEI LED ROLL - PhotoRobot User and Controls Guide (Manual)
LED ROLL 62 DMX Specifications Power 62W LUX 0.5m / 6940, 1m / 2470, 2m / 668 Color Temperature 5600K Voltage AC 15V / 5A, DC 14.4V Dimensions 61 x 46 x 0.3cm Weight 0.5kg CRI 95 LED Diodes 504 pcs… - FOMEI LED DMX 150B Studio Light - PhotoRobot User Guide (Manual)
The light itself offers a maximum power of 150W, and a color temperature of 5600K. - FOMEI LED DMX 600B Studio Light - PhotoRobot User Guide (Manual)
The FOMEI LED DMX 600B is a professional studio light with a maximum output of 600W / 5600K, suitable for professional studio use for video and photography. - FOMEI LED DMX 300B Studio Light - PhotoRobot User Guide (Manual)
From the main menu, there are menu items for: CCT Mode (Intensity), Scene Mode, Channel and Fan (Cooling) Setting, and BT (Bluetooth) Reset & ID. - Broncolor Siros 800 S WiFi / RFS 2 Operating Instructions (Manual)
…Hz) 0.08–2.9 s Flash energy adjustment Over 9 f-stops, in 1/10 or full-stop increments Color temperature 800 J / WS ECTC technology Constant color temperature across the power range. - Capturing Images with PhotoRobot - User Support Manual (Manual)
Note: Some DMX-controlled lights also provide control over color temperature. - 360° Product Photography - Content Formats and Production (Blog)
Beyond adjusting intensity, some DMX-controlled lights also provide control over color temperature. - Packshot Photography - What is it, and How to Produce It (Blog)
Nor is capturing texture, or working with white balance and color temperature.