Welcome on BLF !
Does anyone own this thing and can say something about it?
Edit: Iāve contacted the manufacturer and asked a few questions/requested the manual. Hereās the answer in my words:
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the device needs to be calibrated and is not very precise
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data cannot be exported (though I saw a video in which someone did exactly this).
Thanks for the update. That is very helpful.
Added the Everfine I found today:
Everfine SFIM-300 : http://www.everfine.cn/en/productsinfo.php?cid=10&id=301
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Iām looking for a spectrometer that at least has the same functionality as the cheap Opple devices, but accurate (CCT, CRI, Duv , R9 and flicker).
Are the Hopoocolor ones reliable and accurate out of the box? Or asked a different way, what would a second-hand Sekonic give me over the Hopoocolor?
Thunder optics has a few other ones too, what are they like?
I bought a xrite i1Display Studio from eBay and downloaded the Argyll command line tools.
OK, Iām lost.
Which tool allows me to measure flashlights for CRI, CCT and all that fun stuff?
The display studio is a colorimeter not a spectrophotometer, it can only measure the CCT/duv.
Once installed (driver and added the PATH enviroment variable) we use spotread ambiant measurement with the i1 Studio/colormunki photo , Iām guessing itās the same with the colorimeter.
spotread -a -x -s -H i what i run but -s and -H will do nothing with a colorimeter.
Should it be removed from the top list then? I feel like I bought this expecting something else.
Well the i1 Display Studio isnāt in the list, the i1 Studio is and it is a spectrophotometer. Their naming is terrible thatās for sure.
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Yeah good idea, also on reddit someone bought a Colormunki Display instead of a Colormunki Photo, So I would suggest to put a note for this one as well.
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I purchased an EFI ES-2000 (EO2-EFI-ULZW) thinking it was the same hardware as the i1Pro2. However, I only realized that it doesnāt support ambient light measurement after I received it >:(
Measurement Modes: [Reflectance Spot, Reflectance Scan, Emission, DualReflectance Spot, DualReflectance Scan]
Licensed functionality: [Has UV LED, Has Wavelength LED, Has Zebra Ruler sensor, Max Ruler Length = 300 mm, Has Indicator LED, Spectral values, Tristimulus, Density]
U.V. filter ?: No
Measure Ambient ?: No
Can it be used to test flashlights under emissive mode (spotread -e)?
I have an EFI ES-2000 and can verify that āspotread -eā works. I usually run
spotread -e -x -H -S -T
to show a graph and also display CCT & CRI info.
Yeah I tried that but I think it gives incorrect CCT readings
Youāve given me a good excuse to share some data 
I went down the rabbit hole recently and got a Colormunki Photo, i1Pro 1 (rev D), and the ES-2000 (i1Pro 2 rev E). The caveat is that I got the ES-2000 very cheap without a calibration plate, but it fits fine on the i1Pro1 plate and passes the xRite iDiagnostics check. Hereās the comparison of readings from each channel of my 2-channel D4V2 (Nichia 519A 2700k with dome/Nichia 519A 5700K with dome):
D4V2 2700K
Colormunki (ambient): 2657 K / 97 CRI / 95 R9 / 0.0014 Duv
i1Pro1 (ambient): 2609 K / 96 CRI / 93 R9 / 0.0012 Duv
i1Pro2 (emissive): 2596 K / 96 CRI / 94 R9 / 0.0006 Duv
D4V2 5700K
Colormunki (ambient): 5530 K / 97 CRI / 96 R9 / 0.0026 Duv
i1Pro1 (ambient): 5293 K / 97 CRI / 97 R9 / 0.0035 Duv
i1Pro2 (emissive): 5260 K / 97 CRI / 94 R9 / 0.0024 Duv
So the Colormunki seems a little higher on the CCT. Iād probably trust the i1Pro1 the most since it has the calibration plate. But you can see the ES-2000 using emissive mode is not too far off.
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Do you use a diffuser?
No diffuser - itās just a direct emissive reading. I also tested using the i1Pro1 ambient diffuser cap on the i1Pro2 (which fits fine), while still taking the reading in emissive mode, but it makes the CCT drop by at least a couple hundred. So that seemed inaccurate and I think the direct reading is the way to go.
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