Archived posting to the Leica Users Group, 1998/04/26
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]At 12:48 PM 4/26/98 +0000, Chris Bitmead wrote: >So how come Sigma, Tamron and Tokina have no problems making EOS >mount lenses? Certainly Canon don't give them any help, legally >or otherwise. They PURCHASE the rights to use the mount from Canon, which then supplies them with basic engineering drawings. There are a few cases where this has been done at the request of the OEM, but, normally, it is at the instigation of the after-market company and is a straight cash deal. Marc msmall@roanoke.infi.net FAX: +540/343-7315 Cha robh bas fir gun ghras fir!