If you're moving from a DSLR to a mirrorless body, the mount adapter is the bridge between the lenses you already own and the new camera system. In the camera accessories adapters category, two listings stand out: the Nikon FTZ II Mount Adapter (F Lens to Z-Mount Camera) at USD 194.00 and the Canon Mount Adapter EF-EOS R for Canon EF/EF-S Lens to EOS R Camera at USD 129.95. Both are listed as new, but they serve different lens mounts, so your choice comes down to the camera system you shoot.
Quick Verdict
Pick the Nikon FTZ II if you own Nikon F-mount lenses and want to use them on a Nikon Z-mount body. Pick the Canon Mount Adapter EF-EOS R if you're moving Canon EF or EF-S lenses to an EOS R camera and want the lower-priced listing.
Side-by-Side Comparison
| Product | Listed Price | Price Bar | Key Details |
|---|---|---|---|
| Nikon FTZ II Mount Adapter (F Lens to Z-Mount Camera) | USD 194.00 | New; Lens Fitting: Nikon Z; Fastening: Twist-On | |
| Canon Mount Adapter EF-EOS R for Canon EF/EF-S Lens to EOS R Camera | USD 129.95 | New; Lens Fitting: Canon EF; Type: Lens Adapters |
Where the Nikon FTZ II Wins
The Nikon FTZ II is built for Nikon F lenses and Z-mount cameras. Its product description highlights a streamlined design with no tripod mount, making it ideal for cameras with a battery grip. It maintains AF/AE with E, G, and D lenses, retains infinity focus, and includes an integrated 1/4"-20 mount. For Nikon shooters moving from F-mount glass, this adapter gives you a familiar feature set in a slim body that sits close to the camera.
Where the Canon EF-EOS R Wins
The Canon Mount Adapter EF-EOS R is the straightforward way to use Canon EF or EF-S lenses on an EOS R camera body. It is listed as a lens adapter for Canon EF fitting, and its listed price is the lower of the two. If you have a collection of Canon EF or EF-S lenses, this is the direct adapter for your transition to the EOS R system without adding as much to your overall spend.
Product Notes
Nikon FTZ II Mount Adapter (F Lens to Z-Mount Camera) 4264 / 4306
This adapter is for Nikon F lenses and Nikon Z-mount cameras. It supports a long list of compatible models, including the Nikon Z 5, Z 6, Z 6II, Z 7, Z 7II, Z 9, Z 50, and Z fc. The streamlined design without a tripod mount is especially useful on cameras with a battery grip, and the integrated 1/4"-20 mount gives you an attachment point. The trade-off is the $194.00 listed price, which is the higher of the two. It also won't help if your lenses are Canon EF or EF-S, because this is a Nikon-specific adapter.
Canon Mount Adapter EF-EOS R for Canon EF/EF-S Lens to EOS R Camera
This adapter is the lower-priced option at $129.95 and is designed to connect Canon EF or EF-S lenses to EOS R cameras. It's listed as a new lens adapter with Canon EF lens fitting, so if your existing glass is Canon EF or EF-S, this is your match. The limitation is that it's tied to the Canon EF mount-it won't adapt Nikon F lenses. If you're all-in on Canon and moving to the EOS R system, this listing gives you the direct adapter you need for less than the Nikon option.
Final Choice by Use Case
If you already have Nikon F lenses and a Nikon Z-mount body, the Nikon FTZ II Mount Adapter is the one to get. Its compatibility with a wide range of Z cameras makes it the natural fit for Nikon shooters. If your lenses are Canon EF/EF-S and you're moving to an EOS R body, the Canon Mount Adapter EF-EOS R is the right call-and it's the lower-priced listing.
