Opple Light Master III (G3) discussion thread (Cheap device for measuring Lux, CCT + CRI)

Hate to be annoying but could you possibly edit the main post to links to Steves Software, the Home 3.3.1 app (which works worh both lm3 and lm4), the webapp, and the developer discord?

Edit: sorry, Steves software was LM4 only.

Yes I like it a lot. For me, continuos Duv is unexpectedly so much more informative as it shows things like Duv change when your hotspot is not spot-on the sensor, as the LED heats up (generally Duv turns more negative), as the output drops (Duv turns more positive, except for Firefly LED).

Unexpectedly makes me more confident of the number I am getting. As mentioned, caveat is there’s no warning when sensor is overloaded, and Ra and R9 completely wrong.

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Based on VERY PRELIMINARY testing with Firefly T9R that has low CRI LED FFL909MX, I have good news to report on this web based Lightmaster App. BTW for testing, I use tripod for my light and always aim light so the hotspot is right on the sensor.
1. From my test with one high CRI LED (219b 4500k), and now, one low CRI LED (FFL909MX), this Web Based App does appear to tract the official Lightmaster Phone App. Albeit just CCT and Duv, nothing else.
2. Warning again: the sensor is overloaded without warning at a lower brightness level than Lightmaster Phone App. Roughly, for example at Turbo output, my T9R is 10 feet away from sensor with Phone App, and 15 ft away with Web Based App. The bad thing is when overloaded, it continues to read values that are completely wrong. As in negative 0.0040 where it should be positive 0.0070, etc. Well at least completely wrong should be a better warning than just slightly wrong.
3. For me/IMHO, continuous Duv is a godsend, both for accuracy while following trends and convenience. I hope more people would use this so we have more data points.

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