We seem to be at a bit of a transitional moment in sensor design / marketing, with some seeing the end of MFT (µFT whatever) around the corner. Full Frame has quite a powerful marketing pull, and now that mirrorless bodies are so relatively small and lightweight anyway, perhaps MFT has lost some of it's USP? What of APS-C? Is that going to have a future now that you can make a very portable FF? I still like so-called 'crop sensors' for a number of reasons - I think it's easier to make a powerful machine with smaller components - Sony FF had overheating problems for years (though that seems to have died down now). Overheating / reliability problems could return as they try to chase a new set of performance benchmarks. Things like IBIS are easier to implement well on smaller sensors. The lenses stay much smaller and more portable. This really makes a difference on the long end. Adaptability - there must be a thousand or so lenses (including vintage) available for cameras like the GH5 and the BMPC4K. Any thoughts?