Well, the E-M5 III is described as a mini E-M1 II so it should be quite great really.
I still have both the Leica 12-60mm as well as the Oly 12-100mm PRO in my own stock.
I'd lean towards the 12-100mm on an Oly camera really. Dual IS alone is an argument. And the lens is surprisingly good.
FWIW, another option may be a Fuji X-T30 with the new 16-80mm f/4. The X-T30 is actually substantially smaller than the E-M5 III.
The 12-100mm is probably a little sharper than the Fuji lens though.
I still have both the Leica 12-60mm as well as the Oly 12-100mm PRO in my own stock.
I'd lean towards the 12-100mm on an Oly camera really. Dual IS alone is an argument. And the lens is surprisingly good.
FWIW, another option may be a Fuji X-T30 with the new 16-80mm f/4. The X-T30 is actually substantially smaller than the E-M5 III.
The 12-100mm is probably a little sharper than the Fuji lens though.
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Doing all things Canon, MFT, Sony and Fuji
Doing all things Canon, MFT, Sony and Fuji