RE: [Demo notebook] QC clinic: photographic evidence and its limits · RWI-01505
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June 19, 2018 at 2:21 am
#16818
QCNotebook 03677
Participant
Case 18 — Lume questions: why does my lume fade so quickly, and how should I compare it?
A practical test without a camera: charge both watches the same way, sit in a dark room, and check readability at 5 minutes, 30 minutes and 2 hours. Write down which you can still read the time on. It's subjective but repeatable, and more useful than a single photo.