The below isn't meant to put Micro Four Thirds down at all (after all I still own 3 Olympus bodies and about 7 lenses, and have no intentions of selling them), as I do still genuinely have a soft sport for the format.
However, I've recently taken delivery of a new Sony A7CR, as a small EDC and for Holidays etc. One of the big advantages of MFT when I was running Nikon DSLR's was size and weight, with my Olympus kit always coming in quite a bit smaller and lighter than the equivalent Nikon kit, and thus ideal for travel. However, I was a little surprised when unboxing my A7CR at how small and light it was for a 61mp full frame camera, and coupled with my 2 "Travel" lenses (the Sony 16-35 F4 and the Sony 20-70 F4) was amazed to see the combinations matched or were smaller and a little lighter than the Olympus travel kit I would have normally took (an OM-1 body and the Leica 8-18mm F2.8-4 and the Olympus 12-40 F2.8 Pro). See below for a comparison.
Before anyone says it, yes I'm sure there are smaller and lighter MFT options available, but the below is based on what I actually own.
So my question is, do we think that MFT has lost or at least is losing, it's main advantage in size and weight ? Now, I'll be the 1st to admit that when it comes to long lenses, perhaps the tables turn, but with the new Nikon Z 400 F4.5 and 600mm F6.3 PF lenses weighing barely more than a 300mm F4 Pro from Olympus and hardly any bigger, then maybe this advantage is being eroded as well ?
Now I know before anyone says it, the OM-1 and A7CR are very different cameras - the OM-1 is a speed demon, much better viewfinder and rear screen, twin card slots, and all the Olympus AI trickery. However the A7CR counters with an amazing 61MP sensor (that's even 26mp in APS-C mode), a dedicated photo/video/slow motion switch, and better and sharper video (with access to all colour profiles in 10bit 422 colour depth - not just log), and access to (if required), an amazing arsenal of glass (much like MFT) However the point of this post, is that as I haven't really used my MFT kit for a few months now, I was shocked when I compared the sizes and weights for this FF kit vs MFT ?
So, do you think OMS and Panasonic need to do something radical to keep the format relevant in these days of the continued onslaught of FF cameras tempting people away to other formats, or do you think they are fine as they are and will just weather the storm ?