Archived posting to the Leica Users Group, 2008/06/24
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Hello Everyone, I picked up a 21mm Biogon/2.8 for the M mount and need a filter to protect the front element. Will a regular 46mm UV filter do, or will I need to get a slim filter to prevent vignetting in the corners? Thanks in advance Regards, Akhil