There are some nice insights to get from this seemingly quite candid interview with Sigma CEO Kazuto Yamaki:
https://www.dpreview.com/interviews/1588388811/photokina-2018-sigma-interviewIt seems that:
- The proprietary Simga SA mount (designed originally for 35mm format SLRs, mostly mimicking Canon EOS mount) is now on its way out: no new bodies, meaning no new Merrill or Quattro style cameras, only ones in Leica's L mount.
- SA mount lenses will keep being made for now, so long as owners of SA mount bodies keep buying enough of them.
- Its L-mount lens system will probably start with the 14 designs now made in Sony E mount.
- He describes the dynamic as a Panasonic initiative, with Panasonic approaching Leica first, and Sigma entering later.
- He says nice things about MFT as a compact system, almost as if promoting the vision of a market with 4/3" and 35mm formats, and not much in between!