>>4258074Can't tell if this is a real m43 user, or if he's trolling m43 users. But ignore him OP.
>>4258131>The images from a 90D won't look that much better. Also you still get no ibis, no world class AF, no dual card slots, no proper weather sealing, all while costing 1k new. Unless you want a fool frame (you'll lose reach on your fav 100-400), there's no upgrade that will wow you among aps-c canon dslrs.90D is sharper with better high ISO and much better AF. The 90D's AF includes mirrorless like subject tracking because it uses an imaging sensor for the AE meter (Canon calls this iTR). The 90D also includes weather sealing. The 7D mark II has even better AF (also uses iTR) and weather sealing, but the IQ is between the 700D and 90D.
I would probably say go with an RF body and EF adapter, but at the right price you can't ignore DSLR options, both apsc and FF.