NEEWER LED-NL660 というものをタイムセールで買ってみたので ColorMunki Photo + Argyll CMS で測定してみた。
WHITE と YELLOW というつまみがあり、2種類のLEDの光量が変更できるようになっている。色温度の調整はこれを微妙に動かして行う。
WHITE 全部
Result is XYZ: 5747.510694 6065.655076 5528.248292, D50 Lab: 439.775063 -11.375823 -26.558254 Ambient = 6065.7 Lux, CCT = 5545K (Duv 0.0049) Suggested EV @ ISO100 for 6065.7 Lux incident light = 11.2 Closest Planckian temperature = 5376K (DE2K 6.5) Closest Daylight temperature = 5492K (DE2K 2.3) Color Rendering Index (Ra) = 97.5 [ R9 = 85.5 ] R1 = 97.0 R2 = 98.3 R3 = 99.7 R4 = 98.1 R5 = 97.6 R6 = 96.7 R7 = 97.9 R8 = 94.6 R9 = 85.5 R10 = 97.6 R11 = 97.7 R12 = 83.7 R13 = 97.5 R14 = 98.4 Television Lighting Consistency Index 2012 (Qa) = 98.6
スペック上は5600Kまでと書いてあるが 5500K の LED っぽい。
YELLOW 全部
Result is XYZ: 5563.515641 5243.322549 2120.666499, D50 Lab: 418.170369 60.679109 158.296845 Ambient = 5243.3 Lux, CCT = 3126K (Duv 0.0016) Suggested EV @ ISO100 for 5243.3 Lux incident light = 11.0 Closest Planckian temperature = 3079K (DE2K 3.0) Closest Daylight temperature = 3095K (DE2K 0.9) Color Rendering Index (Ra) = 98.1 [ R9 = 88.9 ] R1 = 99.0 R2 = 99.3 R3 = 99.0 R4 = 98.8 R5 = 98.5 R6 = 98.1 R7 = 97.3 R8 = 95.0 R9 = 88.9 R10 = 98.3 R11 = 98.5 R12 = 85.5 R13 = 99.2 R14 = 98.6 Television Lighting Consistency Index 2012 (Qa) = 98.1
3100Kぐらいが下限
WHITE+YELLOW 全部
Result is XYZ: 11395.644074 11395.813163 7722.945028, D50 Lab: 546.392814 29.623320 61.495553 Ambient = 11395.8 Lux, CCT = 4173K (Duv 0.0006) Suggested EV @ ISO100 for 11395.8 Lux incident light = 12.2 Closest Planckian temperature = 4158K (DE2K 0.9) Closest Daylight temperature = 4232K (DE2K -3.6) Color Rendering Index (Ra) = 98.8 [ R9 = 96.1 ] R1 = 99.3 R2 = 99.6 R3 = 99.6 R4 = 99.6 R5 = 98.9 R6 = 97.3 R7 = 98.4 R8 = 97.8 R9 = 96.1 R10 = 99.1 R11 = 97.1 R12 = 83.4 R13 = 99.2 R14 = 98.5 Television Lighting Consistency Index 2012 (Qa) = 98.3
最も明るいが4200Kぐらいの中途半端な色温度になる。
5000K
5000K 程度にあわせたとき。(WHITE 全部+YELLOWが左水平とちょっとぐらい)
Result is XYZ: 6934.349461 7181.415867 5994.476376, D50 Lab: 466.163889 1.000754 -3.284202 Ambient = 7181.4 Lux, CCT = 5029K (Duv 0.0029) Suggested EV @ ISO100 for 7181.4 Lux incident light = 11.5 Closest Planckian temperature = 4941K (DE2K 4.1) Closest Daylight temperature = 5042K (DE2K -0.6) Color Rendering Index (Ra) = 98.2 [ R9 = 90.1 ] R1 = 98.4 R2 = 99.3 R3 = 99.5 R4 = 98.5 R5 = 99.0 R6 = 97.0 R7 = 97.9 R8 = 96.0 R9 = 90.1 R10 = 99.3 R11 = 96.9 R12 = 85.9 R13 = 99.0 R14 = 98.7 Television Lighting Consistency Index 2012 (Qa) = 98.6
Ra は全ての指定色でかなり高い値が出てる。R12(青)もそこそこ高い値が出ていて良い。
このときのスペクトル
