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 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 I don't remember this but go get a piece of black velvet from the fabric store. It is photographically black. Henry - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html