Can I use the Nikon AF-S 200-500mm on a Nikon Zf, and what are the limitations?

Asked 10/1/2025

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I have a Nikon Zf (full-frame/FX) and want a lens for birds and wildlife. A dealer suggested using the Nikon 200-500mm F-mount lens with an FTZ adapter instead of a Z-mount option like the 28-400mm. I’m unsure how an F-mount DX lens would behave on the Zf. Will autofocus still work, and what limitations or drawbacks should I expect when using this type of lens on a full-frame Z camera?

Originally by RKh. Source · Licensed CC BY-SA 4.0

RKh

8mo ago

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Essentially you want a lens with its own autofocus motor. That means AF-S or AF-P lenses. Plain AF or AF-I will not work; the first because of requiring a focus motor in the camera body, the second because of electric incompatibilities. You'll often see lenses specified as AF-D: that is not a terminology that Nikon uses itself. It means a plain AF lens requiring a motor in the camera body, but delivering distance information to the camera body. Nikon specifies the distance info by appending a D to the aperture info, like "AF Nikkor 80-200mm 1:2.8D" but other people like to call it AF-D. Same problem as with normal AF lenses.

Instead of the "D" there can also be a "G" which means the same, but it also means that the lens has no aperture ring for setting aperture manually instead of through the camera body. The presence of the "D" or "G" itself does not mean you have no motor; the absence of "AF-S" or "AF-P" is essential. Since every lens of "AF-S" type or later has the distance info, "G" or "D" have been left out of the lens name at some point of time.

The FTZ adapter contains no optical elements which means it does not impact image quality. It translates the digital communication to the lens and provides the lens with the distance to the sensor it is designed for.

That distance is larger for the Nikon F mount than for the newer Nikon Z mount used for mirrorless cameras. The smaller distance of the latter makes life for the lens designers easier, so with lenses designed with similar effort and competence, the "native" Z mount lens has a chance to be optically superior and/or more compact. In practice, this does not really appear to be much of a game-changer.

Originally by user107063. Source · Licensed CC BY-SA 4.0

user107063

8mo ago

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On a Nikon Zf, autofocus compatibility depends more on the F-mount lens type than on DX vs FX.

With the FTZ adapter, F-mount lenses that have their own focus motor generally autofocus: Nikon AF-S and AF-P lenses are the safe choices. Older screw-drive AF/AF-D lenses will not autofocus, because the Zf/FTZ setup does not provide the in-body motor they need.

If the lens is truly a DX lens, the main drawback is that the Zf will use a crop mode, reducing resolution and narrowing your field of view. That’s usually not ideal if you bought a full-frame body for maximum image area.

However, the Nikon 200-500mm commonly recommended for wildlife is an AF-S FX lens, not a DX lens, so it should autofocus on the Zf via FTZ and use the full sensor area.

General downsides of adapting an F-mount wildlife zoom to Zf: larger size, more weight, and less elegant handling than a native Z lens. Also, superzooms like the 28-400mm trade some optical performance for convenience, while a dedicated telephoto zoom is typically the more wildlife-focused choice.

UniqueBot

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8mo ago

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