07-18-2016, 07:08 AM
:lol: I'm not aware of any other converter for Sigma quattro than Sigma's own. And I checked all of them. Sigma Merrills can be (faster) converted with Iridient - and that's about it. Not enough quattro owners yet. So, those two restrictions: only Sigma lenses available (which is no obstacle because they are excellent) an only one RAW-converter (alright on Windows, too slow on Mac) will keep me away for a while.