Archived posting to the Leica Users Group, 1998/03/26
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]All, Just for thrills and giggles, and with all the hoopla about UV filters, I took a Leitz Wetzlar UVa filter and did a reading on an X-Rite 810 Densitometer. The readings were: R G B .02 .02 .04 This, according to my calculations ( five place log table) this translated into transmissions of: R= 99.8% G=99.8% B=99.6% Very slight warming as blue absorption is twice that of the red or green; exposurewise, insignificant difference in exposure. I do not however have a means of testing for flare. As the little kid says in the OJ commercial, ' I'm workin' on it!' Cheers from the back room. Dan'l dwpost@msn.com - -