Reader Questions About Adapters

"Do F-mount autofocus lenses work in autofocus via the FTZ adapter when shooting video on the Z bodies?"

Yes, if they are AF-I, AF-S, or AF-P (or third party lenses with internal lens motors, such as Sigma's HSM lenses). AF-I and AF-S lenses will make clear noises that are audible and picked up with the camera's microphones; the AF-P lenses tend to be more silent, though can still be heard with the camera's microphones.

"Wait, what about screw-drive lenses?"

Older autofocus Nikkor (or third party) lenses that rely on a camera body motor to drive the focus system will not autofocus on the FTZ adapter. In general, the D-type lenses from the film era have screw drive systems and thus won't autofocus when mounted on a Z camera.

"Can I use AI and AI-S lenses on the FTZ adapter?"

Yes, and you can set exposure with these lenses. Obviously, they don't autofocus since they're all manual focus lenses ;~). 

"Will we ever see a Z to F mount adapter to use the new Z lenses on DX and FX DSLR cameras?"

No. The Z lenses were designed to provide infinity focus when sitting 16mm forward of the sensor. The F-mount is over 46mm from the sensor. If you move a lens that far forward of where it was designed, it will lose infinity focus (and probably a lot of distance focus, too). If you wanted to use use a Z lens on an F-mount body as a macro lens, I suppose you could create an adapter that acts like an extension tube, but I don't see much demand for that.

"Is it possible to build a teleconverter into a Z adapter?"

I would think that answer to be yes. It might be a little tricky to optimize, but I don't see why it couldn't be done. There's been no indication that Nikon is doing so, however.

"Does the FTZ adapter work with third party F-mount lenses?"

Information is slowly getting better over time about this. Recent Sigma (Art) and Tamron (G2) lenses are fine. Both those companies have issued firmware updates for a few recent lenses, and have actively written about compatibility on their Web sites. Older Sigma and Tamron lenses are where the issues start to pop up, and both companies seem to have a break point at which they'll backdate firmware updates. Basically, I'd say that anything pre-dock from either company is a hit or miss situation.

"Will the FTZ adapter make F-mount lenses perform worse?"

No. The Z7, for instance, appears to use pretty much the same technologies and coatings that the D850 uses. An adapted lens will be at the same position to the sensor, so the light ways will hit that sensor the same. Thus, I expect no differences between the way a lens performs on a D850 natively and on a Z7 via adapter. While I've seen reports from others that AF-S focus can sometimes be slower on a Z camera, I haven't been able to verify a single case. These lenses simply focused slightly slower than the current stepper motor focus systems (AF-P and Z mirrorless), but a lot of folk didn't really note that.

"What happens with DX lenses?"

They work as expected on the FTZ adapter. The camera automatically crops to the DX format (and can't be overridden). The EVF compensates (e.g. the DX crop fills the image area). 

"Does the FTZ Adapter maintain weather sealing?"

Yes with a footnote. At the camera end, the usual Nikon Z weather sealing is still applicable. At the F-mount end, it will depend upon the lens you mount on the adapter. Many older lenses don't have the rubber gasket seal that newer ones do. That said, generally I've not found the mount to be the place you have to worry about in inclement weather, except when you're changing lenses.

"Does VR on an F-mount lens still work?"

Yes, it does. And both the lens and sensor VR work in conjunction with one another. If the lens has a VR switch on it, that will control both the lens and the sensor VR.

Looking for other photographic information? Check out our other Web sites:
DSLRS: | mirrorless: | general/technique: | film SLR:

text and images © 2021 Thom Hogan — All Rights Reserved
Follow us on Twitter: @bythom, hashtags #bythom, #zsystemuser