Talk:Phot

History
This article could use some info on the history of the unit. I assume it was associated with the cgs system (and added that to the article). I assume the unit is now largely obsolete, since I had never encountered it, but I didn't want to add that without more direct evidence.--Srleffler (talk) 02:19, 14 September 2008 (UTC)

Should this article be merged with Lux? — Preceding unsigned comment added by 58.169.75.207 (talk) 13:30, 13 April 2013 (UTC)

Assessment comment
Substituted at 02:54, 30 April 2016 (UTC)