Don't buy CHNSpec's item.

Recently I bought a colorimeter. CS-10, made by Hangzhou CHNSpec Technology Co.,Ltd. It's just $235, so I never expected gorgeous accuracy. In reality, it isn't gorgeous, not good, not acceptable. Clearly worse than my $190 photo scanner, EPSON Perfection V600.

I asked CHNSpec about the problem. My CS-10 might be broken when it was delivered. But the person in charge refused to answer.

I investigated the accuracy (inaccuracy) of CHNSpec CS-10. This is the report.

I know about Adobe Math. The variation of illuminant and standard obserber, too. I relied on python-colormath.

I don't have gorgeous spectrophotometer, so I relied on a technical review and a color chart. The color chart is SpyderCheckr24. The technical review is Chromaxion's.

I made a comparison image of my scanner, CHNSpec CS-10, and the technical review. Some patches are out of sRGB's gamut, so I need to embed Adobe RGB profile. Old web browsers may show inaccurate color.



I calculated the color differences (CIEDE2000) of each patches, and the stats is here:



In every aspects, CHNSpec CS-10 works worse than my $190 photo scanner. Again, CHNSpec's person in charge refused to answer about the problem. Don't buy CHNSpec's item. Now I'm trying to return it and receive a refund, of course.