Lens Mount Adapters
Canon Control Ring Mount Adapter EF-EOS R
- Canon EF/EF-S Lens to EOS R Camera
- Maintains AF and Image Stabilization
- Configurable Control Ring
- Dust- and Water-Resistant
Nikon FTZ II Mount Adapter
- Nikon F Lens to Nikon Z-Mount Camera
- Streamlined Design with No Tripod Mount
- Ideal for Cameras with Battery Grip
- Maintains AF/AE with E, G, D Lenses
Other Buying Options
Vello Canon FD Lens to Canon EF/EF-S-Mount Camera Lens Adapter
- Canon FD Lens to Canon EF/EF-S Camera
- Coated Optical Glass Element
- Infinity Focus
- Matte Black Interior
Vello Canon FD Lens to Sony E-Mount Camera Lens Adapter
- Canon FD Lens to Sony E Camera
- Infinity Focus
- Matte Black Interior
- Zinc Alloy Construction
Canon Mount Adapter EF-EOS R
- Canon EF/EF-S Lens to EOS R Camera
- Maintains AF and Image Stabilization
- Dust- and Water-Resistant
Sigma MC-11 Mount Converter/Lens Adapter (Sigma EF-Mount Lenses to Sony E)
- Adapt EF-Mount Lens to Sony E Body
- Integrated LED Displays Compatibility
- Maintains Autofocus and Auto-Exposure
- Supports In-Camera Correction Features
Other Buying Options
Canon Drop-In Filter Mount Adapter EF-EOS R with Variable ND Filter
- Canon EF/EF-S Lens to EOS R Camera
- Maintains AF and Image Stabilization
- Includes Drop-In Variable ND Filter A
- Dust- and Water-Resistant
Viltrox EF-M2 II Canon EF Lens to Micro Four Thirds Camera Mount Adapter
- Canon EF Lens to MFT Camera
- Built-In Focal Reducer, 0.71x Mag.
- One-Stop Increase in Lens Aperture
- Maintains AF, AE, and IS Functions
Other Buying Options
Metabones Canon EF/EF-S Lens to Sony E Mount T Smart Adapter (Fifth Generation)
- Canon EF/EF-S Lens to Sony E-Mount Body
- Works with Full-Frame and APS-C Cameras
- Switch for In-Body Image Stabilization
- Support for Phase- & Contrast-Detect AF
Other Buying Options
Viltrox EF-EOS M Lens Mount Adapter for Canon EF or EF-S-Mount Lens to Canon EF-M-Mount Camera
Nikon FTZ Mount Adapter (Refurbished)
- Nikon F Lens to Nikon Z-Mount Camera
- Maintains AF/AE with E and G Lenses
- Maintains AE with D Lenses
- Retains Infinity Focus
Canon EF-M Lens Adapter Kit for Canon EF / EF-S Lenses
- Mount Canon EF/EF-S Lens On EOS-M Camera
- Compatible with All Lens Functions
- Camera Cover R-F-3, EB Lens Dust Cap
Sony LA-EA5 A-Mount to E-Mount Adapter
- A-Mount Lens to E-Mount Body
- Maintains Autofocus and Auto-Exposure
- Supports In-Camera Correction Features
- Compatible with Phase-Detection AF
Megadap ETZ21 Sony E-Mount Lens to Nikon Z-Mount Autofocus Adapter
- Sony E-Mount Lens to Nikon Z-Mount Body
- Supports Electronic Communication
- Enables Autofocus and Auto Exposure
- Transfers EXIF Metadata to Camera
Sigma MC-21 Mount Converter/Lens Adapter (Sigma EF-Mount Lenses to L-Mount Camera)
- EF-Mount Lens to L-Mount Body
- Integrated LED Displays Compatibility
- Maintains Autofocus and Auto-Exposure
- Supports In-Camera Correction Features
FotodioX Pro Lens Mount Adapter for Nikon F Lens to Canon EF-Mount Camera
- Nikon F Lens to EF-Mount DSLR
- Maintains Infinity Focus
- Leaf Spring Mount Design
- Brass with Stainless Steel Finish
Fringer EF-FX Pro II Lens Mount Adapter for EF- or EF-S-Mount Lens to Fujifilm X-Mount Camera
- Use Canon EF/EF-S Lens on Fuji X-Mount
- Built-In Electronic Aperture Adjustment
- Phase-Detection Auto Focus Supported
- Brass Bayonets
Other Buying Options
FotodioX Pro Lens Mount Adapter for M42 Lens to Canon EF-Mount Camera
- M42 Lens to EF-Mount DSLR
- Maintains Infinity Focus
- Leaf Spring Mount Design
- Brass with Stainless Steel Finish
Viltrox EF-R3 0.71 Speed Booster Adapter for Canon EF-Mount Lens to Canon RF-Mount Camera
- Canon EF Lens to Canon RF Camera Body
- Maintains Autofocus, Image Stabilization
- 0.71x Optical Multiplier
- Supports Exif Data Transfer
Metabones Canon EF/EF-S Lens to Sony E Mount T CINE Smart Adapter (Fifth Generation)
- Canon EF/EF-S Lens to Sony E-Mount Body
- Positive-Lock Canon EF/EF-S Lens Mount
- Works with Full-Frame and APS-C Cameras
- Switch for In-Body Image Stabilization
FotodioX Mount Adapter for Nikon F-Mount Lens to Sony E-Mount Camera
- Nikon F Lens to Sony E-Mount Camera
- Supports Infinity Focus
- Anodized-Aluminum Construction
Vello Canon EF/EF-S Lens to Sony E-Mount Camera Auto Lens Adapter
- Canon EF/EF-S Lens to Sony E Camera
- Works with Full-Frame & APS-C Formats
- Enables Autofocus and Auto Exposure
- Supports USM and STM Focusing Motors
FotodioX Mount Adapter for Pentax K-Mount Lens to Sony E-Mount Camera
- PK-Mount Lens to Sony E-Mount Camera
- Supports Infinity Focus
- Anodized-Aluminum Construction
Metabones Leica M Lens to Canon RF-mount Camera T Adapter (Black)
- Leica M Lens to Canon RF-mount
- Brass Construction with Chromium Plating
- Flocked Interior to Limit Flare
- Infinity Focus
Metabones Lens Mount Adapter for ARRI PL-Mount Lens to Canon RF-Mount Camera
- ARRI PL Lens on Canon RF-Mount Body
- Precision Machined and Chrome Plated
- Precision Fit; No Gap, Play or Wiggling
- Infinity Focus Maintained
Other Buying Options
Leica M-Adapter L (Black)
- Leica M Lens to Leica L-Mount Camera
- 6-Bit Coding Sensor
- Supports Aperture-Priority Metering
Metabones Nikon F Lens to Sony E-mount Camera T Adapter III (Black)
- Nikon F Lens to Sony E-mount
- Brass Construction with Chromium Plating
- Flocked Interior to Limit Flare
- Infinity Focus
FotodioX Mount Adapter for Nikon F-Mount Lens to Canon EOS Camera
- Nikon F Lens to Canon EOS Camera
- Supports Infinity Focus
- Anodized-Aluminum Construction
Metabones Lens Adapter for Nikon F-Mount, G-Type Lens to Leica L-Mount Adapter
- Nikon G-Type, F Lens to L-Mount Body
- Integrated, 8-Stop Aperture-Control Ring
- Infinity Focusing
- Brass Mounting Rings
Fringer FR-FTX1 Nikon F Lens to FUJIFILM X Camera Adapter
- Nikon D,G,E lenses to FUJIFILM X Cameras
- Phase Detect AF Points Supported
- Face/Eye Detection Autofocus Supported
- R/OS/VC Lens Stabilization Supported
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Understanding and Selecting Lens Adapters
You use a lens adapter to fit a lens of another make or mount onto your camera. This feature means you can continue to use your older lenses when you upgrade from one camera to another.
What's a Lens Adapter?
Each camera manufacturer has its own proprietary bayonet fitting for attaching lenses to its cameras. Apart from the mechanical connection, lenses also incorporate a set of electrical contacts that communicate with a processor inside the lens to control focusing, lens stabilization, and aperture.
This degree of complexity means lenses must be designed for one specific camera mount, such as a Nikon, Sony, or Canon lens mount. One exception: lenses with a special screw thread intended for camera T-mount adapters. These are manual lenses such as spotting scopes and telescopes. Although an adapter may have a lens, it's not the same as camera add-on lenses that screw onto the front of existing lenses to change their focal length.
How Lens-to-Sensor Distance Affects Adapters
Each camera manufacturer has a specific flange focal distance, meaning the distance between the lens mount and sensor. When fitting lenses from other manufacturers, the adapter must replicate this distance or, if the flange distance is too short, use an auxiliary lens to focus the image correctly. If not, it'll be impossible to focus on distant objects. This is why a Sony-to-Nikon lens adapter has an auxiliary lens, as does a Sony-to-Canon lens adapter. In addition, some lenses protrude into the camera body, so make sure they don't foul the mirror mechanism or camera body.
Focus and Aperture Control with Lens Adapters
In most, but not all instances, an adapter disrupts the electronic communication between the camera and lens, so features such as automatic focusing, aperture control, and electronic stabilization don't work. While manual focus is possible, unless the lens also has an aperture ring, you can't adjust the aperture, which defaults to its maximum. Some adapters incorporate a dandelion electronic chip that tells the camera you're using an adapter. This allows the camera to confirm the correct focus as it would if you were manually focusing with an OEM lens.
If you have a mirrorless camera and a DSLR from the same manufacturer, you can obtain OEM adapters that provide full lens functionality. A good example is the Sony lens adapter that allows you to mount a Sony A-mount lens to its mirrorless E-mount. Note that you can adapt a DSLR lens to a mirrorless camera, but you can't fit a mirrorless lens on a DSLR.
Choosing a Lens Converter
There are a number of companies selling lens adapters. Some, such as Vello lens adapters, offer a comprehensive selection covering most combinations, while others are more specialized. Apart from adapters for still cameras, several suppliers offer C-mount adapters for cine cameras.
Find the combination you need from the wide selection at B&H Photo and Video.