What is TL84 light source?
TL84 – Simulates CIE standard illuminant F11. A narrow band tri-phosphor fluorescent source originally designed for commercial lighting applications outside North America. It is characterized by emitting high amounts of green energy, with a color temperature of approximately 4100K. It has a CRI of approximately 86.
What is U30 light source?
Ultralume 30 (U30 or 30U) – A narrow band tri-phosphor fluorescent source originally designed for commercial lighting applications in North America where energy savings is required.
What is D50 light?
D50 is a theoretical light source that approximates “warm daylight” and follows the CIE standard. It is defined by a theoretical light spectrum as shown below. The resulting xy chromaticity coordinates of this spectrum are (0.34567, 0.35850). The color temperature of this chromaticity point is 5003K.
What white point should I calibrate to?
6500K
If you’re working with video on an LCD monitor, the recommended white point is 6500K or D65. This is also known as the native temperature of your monitor. If you’re working with still images that you plan to print, the white point of 5000K (D50) is recommended, as it looks more like white on paper.
What is D50 white point?
A: 6500 Kelvin (a.k.a.D65) is commonly used as a standard illuminant / white point for photography in the US. The graphic arts industry uses 5000 Kelvin (or D50), but the CRT or LCD will appear more yellow when compared to 6500K.
What does D65 look like?
The white point of D65 was settled on because it was considered as far up on the Kelvin scale as practical before most viewers would recognize it as being blue-ish white.
What is ASTM d1729-16?
ASTM D1729-16, Standard Practice for Visual Appraisal of Colors and Color Differences of Diffusely-Illuminated Opaque Materials, ASTM International, West Conshohocken, PA, 2016, www.astm.org
What is an ASTM designation number?
An ASTM designation number identifies a unique version of an ASTM standard. Active Standard ASTM D1729 | Developed by Subcommittee: E12.11
Who is the authorized dealer of ASTM standards?
Document Center Inc. is an authorized dealer of ASTM standards. Want this as a site license? A redline edition is available for this document, with all changes visible. Ask Document Center Inc. for more information.