Meanwhile, a nifty accessory arrived just in time for spring flower exploration: the new Z extension tube made by Fotodiox. This 15mm ring has pass-through contacts so allows any native Z-mount lens to operate will all functionality intact. On the 35/1.8 S-Line Nikkor I got nearly 1:1 magnification, but the working distance at the near end is extremely short. One has to remove the sunshade from the lens. The Fotodiox tube suits the 50/1.8 S-Line better to yield around 1:3 magnification. Image quality with either lens in combination with the Fotodiox extension is surprisingly good.
Autofocus works with the extension, but is significantly slowed down in the near range.
The extension comes in a luxury, very posh wooden box, so one gets added bonus for the pretty stiff price of this item.