Archived posting to the Leica Users Group, 2000/02/06
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Well I stand (sitting at this moment though), cheerfully corrected. My main exposure to JIS is through bicycle and auto parts and believe you me, they are different there! I still do not think I would put one on E41 lens. John Collier > From: Marc James Small <msmall@roanoke.infi.net> > Date: Sun, 06 Feb 2000 11:16:23 -0500 > Subject: Re: [Leica] 40.5 Filter on Summarit??? > > At 07:11 AM 2/6/2000 -0700, John Collier wrote: >> The 40.5 filter is a JIS standard and uses a different thread pitch from the >> leica lenses. It still may work but try very gingerly as it is very easy to >> mess up such fine pitch threads! Personally I would buy E41 filters and not >> risk toasting the summarit as I assume the glass is good. There a E41 >> filters available used and NOS at all the usual used Leica sites and auction >> sites. >> > > I stammer in disbelief. The 40.5mm filter is a DIN standard filter and was > adopted by Zeiss and Zeiss Ikon long before the JIS came into existence. > Both 40.5mm and 41mm filters are, I believe, 0.5mm thread. > > And, of course, both 40.5mm and 41mm filters are available new, from B+W, > Heliopan, or H&H, or probably from the second-stringers, Tiffen and Hoya. > > Marc > > msmall@roanoke.infi.net FAX: +540/343-7315 > Cha robh bas fir gun ghras fir! >