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
Vello Nikon F Lens to FUJIFILM X-Mount Camera Lens Adapter
- Nikon F to FUJIFILM X Body
- Achieves Infinity Focus
- Matte Black Interior
- Zinc Alloy Construction
Vello Leica M Lens to Sony E-Mount Camera Lens Adapter
- Leica M to Sony E Body
- Achieves Infinity Focus
- Matte Black Interior
- Zinc Alloy Construction
Viltrox EF-EOS M Lens Mount Adapter for Canon EF or EF-S-Mount Lens to Canon EF-M-Mount Camera
Vello Auto Lens Adapter for Canon EF/EF-S Lens to Canon EOS M Camera System
- Mount Canon EF/EF-S Lens on EOS M Camera
- Retains Automatic Lens Functions
- Removable Tripod Mount
Vello Lens Adapter for Canon EF/EF-S Lenses to Micro Four Thirds Mount Cameras (Version II)
- Canon EF/EF-S Lens to Micro 4/3 Camera
- Enables Autofocus and Auto Exposure
- Aperture Toggle for Panasonic Cameras
- Transfers Lens EXIF Metadata to Camera
Sirui Jupiter PL-E Adapter for PL Mount Lenses to Sony E Cameras
- PL Mount Lenses to Sony E Cameras
- Compatible with Jupiter Series Lenses
- Precision Aluminum Construction
- Integrated 1/4"-20 Tripod Socket
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
Fringer EF-NZ II Canon EF Lens to Nikon Z Camera Autofocus Adapter
- Canon EF or EF-S Lens to Nikon Z Body
- Weather Sealed
- Enables Autofocus and Auto Exposure
- Transfers Lens Exif Metadata to Camera
Fringer EF-FX Pro III Autofocus Adapter for Canon EF Lens to FUJIFILM X-Mount
- Canon EF/EF-S Lens on FUJIFILM X-Mount
- Built-In Electronic Aperture Adjustment
- Phase-Detection Auto Focus Supported
- Weather-Sealed Design
TTArtisan Leica M Lens to Canon EOS R-Mount Camera Adapter
Novoflex Leica M Lens to Nikon Z-Mount Camera Adapter
Vello M42 Lens to Canon EF/EF-S-Mount Camera Lens Adapter
Vello Pentax K Lens to Canon EF-S-Mount Camera Lens Adapter
- Pentax K to Canon EF-S Body
- Designed for Canon APS-C Cameras
- Achieves Infinity Focus
- Matte Black Interior
FotodioX Mount Adapter for Nikon F-Mount Lens to Fujifilm X-Mount Camera
- Nikon F Lens to Fujifilm X-Mount Camera
- Supports Infinity Focus
- Anodized-Aluminum Construction
Vello Canon FD Lens to FUJIFILM X-Mount Camera Lens Adapter
- Canon FD to FUJIFILM X Body
- Achieves Infinity Focus
- Matte Black Interior
- Zinc Alloy Construction
KIPON Lens Mount Adapter for Contax/Yashica Lens to FUJIFILM GFX Camera
- Contax/Yashica Lens to FUJIFILM GFX
- Maintains Infinity Focus
- Aluminum and Brass Construction
Viltrox Nikon F-Mount Lens to Z-Mount Camera Adapter
- High Speed Auto Focus
- EXIF Transmission
- VR Lens Stabilization Support
- USB Type-C Port for Firmware Updates
Leica M-Adapter L (Black)
- Leica M Lens to Leica L-Mount Camera
- 6-Bit Coding Sensor
- Supports Aperture-Priority Metering
Vello C-Mount Lens to Micro Four Thirds-Mount Camera Lens Adapter
- C-Mount to Micro Four Thirds Body
- Achieves Infinity Focus
- Matte Black Interior
- Zinc Alloy Construction
FotodioX Mount Adapter for C-Mount Lens to Micro Four Thirds Camera
- C-Mount Lens to Micro 4/3 Body
- Supports Infinity Focus
- Anodized-Aluminum Construction
FotodioX M39 Lens to Leica M Camera Adapter (35mm/135mm Frame Lines)
- M39 Screw-Mount Lens to M Mount Camera
- Activates 35mm/135mm Frame Lines
- Maintains Infinity Focus
- Brass with Stainless Steel Finish
Vello Nikon F Lens to Canon EF/EF-S-Mount Camera Lens Adapter
- Nikon F to Canon EF/EF-S Body
- Achieves Infinity Focus
- Matte Black Interior
- Zinc Alloy Construction
FotodioX Lens Adapter for FUJIFILM X-Mount Mirrorless Manual Focus Lens to Nikon Z-Mount Mirrorless Camera
- For FUJIFILM X-Mount Manual Focus Lenses
- For Nikon Z-Mount Mirrorless Cameras
- Supports Infinity Focus
- All-Metal Construction
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
Metabones Canon FD/FL Lens to Sony E-Mount T Adapter
- Attach FD/FL Lenses to E-Mount Cameras
- Aluminum/Brass with Chromium Plating
- Removable Arca-Type Foot with 1/4"-20
- Felt Material Flocked Interior
Hasselblad XV Lens Adapter
- Hasselblad V Lens to Hasselblad X Camera
- For C, CB, CF, CFI, CFE, F, FE Lenses
- For Use with Camera's Electronic Shutter
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.