Selecting a SpectraLight Daylight Source
Q - Which daylight source do I need to order on my Spectralight?
A - The Daylight color temperature that you choose should follow a specification given to you or in accordance to your industry.
- D75 North Sky Daylight at 7500K is used for visual evaluation of opaque materials as outlined by ASTM D1729.
- D65 Average North Sky Daylight at 6500K is used to provide visual correlation with spectrophotometric readings or in conformance with Automotive, Textile, European or Japanese standards.
- D50 Noon Sky Daylight at 5000K is used for the evaluation of color quality and uniformity in conformance with ANSI and ISO specifications governing the graphic arts.
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