Archived posting to the Leica Users Group, 2001/09/24
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I recall an article, maybe 20 years ago, in Modern or PopPhoto, about painting the inside of a cowhorn with glossy black paint. The reflections would go to the horn's tip and whatever light would be reflected back would be negligible, creating an extremely dark target. I think this setup was used for the magazine's lens flare tests. Amilcar Adam Bridge wrote: > I was trying to make a standard array of artificially lighted 10 zone > display for the photo testing you guys have gotten me interested in. > > I remember, years ago, there was an article, or maybe an ad, in Scientific > American about how to make something optically black. In this case it was a > cube with a circular hole which would photograph very very black indeed. The > instructions for making it were rather complex, as I recall and involved a > special coating on the inside of the box. > > Does anyone else remember this? > > Thanks > > Adam > > -- > To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html