I have a Z6 with the Z 24-70mm f/4 and Z 50mm f/1.8 and hadn't even considered selling or trading it - until I saw the Zf. I have the kit with the 40mm f/2 on pre-order from my local camera store. If it feels as good as it looks, the Z6 and the zoom might be going up for grabs. I'm still on the fence about keeping the Z 50mm f/1.8. The focal length and maximum aperture aren't terribly different from the Z 40mm f/2, but I'm really fond of the 50, and it's weather-sealed. Their next shipment should be coming in later this week, so we shall see!