It's the F-mount Sigma so it requires the FTZ adapter to fit to the Z6. I have a splendid Tamron SP 90 macro but it is useless on the Z6. Tamron has long promised but never delivered a firmware update. Nikon has a macro on the roadmap but with no ETA. The Nikon 105 (the newest AF-S version) was a consideration but I want to eventually go to a native mount lens and the Nikon is pricey for a "stopgap". The Sigma is a very good lens and, at half the price of the Nikon, a no-brainer for my stopgap.Welcome back, Doug! You've been missed! Glad that things are going better now for you. Your new lens is a keeper! Do you have to use the FTZ adapter with it, or does it mount directly? I like the photos, especially number 7, where we can see the bee's proboscis sticking into the flower!