On Fri, Mar 19, 2004 at 11:39:37AM +0000, danilo ([EMAIL PROTECTED]) wrote:
> > maybe there is no agreement and it is al about backward ingeneering. Like > > all third party lenses. Canon will never share it's technology, like a > > software company would never share it's source code to a compatitor (IMHO) > But all of this stuff are patent protected, can they reverse-engineer them > without infringe any (copy)right? Copyright should not be a problem there but patents can be. However, it could be that key patents on EF mount have just expired - the first EF lenses were introduced in 1987, and at the time patents were granted for 17 years, if I remember right. -- Tapani Tarvainen * **** ******* *********************************************************** * For list instructions, including unsubscribe, see: * http://www.a1.nl/phomepag/markerink/eos_list.htm ***********************************************************
