... )• Tolerance of color rendering index: ±(0.3%±0.3)LMS-9000 used the Band pass-filter Wheel Correcting Technique, Spectrometer & ... Technique, and modified NIST stray light correction technology, the LMS-9000 spectroradiometer can realize ultra low stray light of ±0. ... Technique, and modified NIST stray light correction technology, the LMS-9000 spectroradiometer can realize ultra low stray light of ±0. ...