I don’t know whether Florent from Sigma Rumors heard a rumor or whether it’s mere speculation, in any case today’s blog entry mentions that Sigma may be working on a DSLR camera with a Canon or Nikon mount. Interestingly, in an interview with Kazuto Yamaki in the beginning of December last year lenstip.com asked the question if they were considering offering a camera with the mount of another manufacturer. The answer was: No, we cannot. Sigma’s CEO didn’t go any further into detail whether technical or legal reasons were speaking against it.
Also interesting is a patent published on the blog Egami a couple of days ago. It describes a 30-300mm f/2.8-3.5 zoom lens suitable for the Super35 format. Super35 has a crop factor of 1.45 and so it’s just a little bit larger than the APS-C format. The said lens could thus be used on an APS-C camera as well, theoretically speaking. The zoom range (45-450mm full frame equivalent) and the lens speed are substantial, but I’d miss the wide-angle. 🙂