> > From: "William Robb" <[EMAIL PROTECTED]> > Date: 2005/07/11 Mon PM 01:07:53 GMT > To: <[email protected]> > Subject: Re: About Sigma: beware ?? > > > ----- Original Message ----- > From: "keller.schaefer" > Subject: RE: About Sigma: beware ?? > > > >I think it is not fair to gerealise based on the single known Canon > > compatibility problem. Sigma gives information about this on their web > > site, it > > affects a known range of cameras and Sigma offers a free upgrade for all > > lenses > > where this is technically feasible. Not bad for customer service. > > Better customer service would be to pay for licencing and get the proper > firmware for their equipment. > Every Canon EF lens made, right from the original EF50/1.8, circa 1985, to > present, works with every EOS camera, be it film or digital, with no > modifications.
The problem seems to be that licensing does not occur, reverse engineering does. And Canon changes the engineering unpredictably, causing heretofore working lens series to become unfunctional. If that's the scenario, who is providing the poor customer service? mike ----------------------------------------- Email provided by http://www.ntlhome.com/
