| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| warren | "Also - I noticed you're using a compact fluorescent lamp as a light source - but are you measuring absorption? In that case you probably want a bro..." | Read more » | over 7 years ago | |||
| cfastie | "The sensors in consumer cameras have very low sensitivity at wavelengths shorter that 400 nm. Some cameras are slightly sensitive down to about 380..." | Read more » | over 7 years ago |