20 Best Sony A7s Canon Ef Adapter [2024]

Are you looking for the best Sony A7s Canon Ef Adapter? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling Sony A7s Canon Ef Adapter.

We Recommended:

# Preview Product
1 VILTROX EF-E5 5th Generation Autofocus EF to E Mount Lens Adapter Compatible with Canon EF/EF-S Lens... VILTROX EF-E5 5th Generation Autofocus EF to E Mount Lens Adapter Compatible with Canon EF/EF-S...
2 Fotasy Manual Canon EF Lens to Sony FE Mount Adapter, EF E-Mount, EF Adapter to E Mount, for Sony... Fotasy Manual Canon EF Lens to Sony FE Mount Adapter, EF E-Mount, EF Adapter to E Mount, for Sony...
3 Fotasy Manual EF EFS Lens to E Mount Adapter, EF E Mount, EF Adapter to E Mount, Adapter for Cannon... Fotasy Manual EF EFS Lens to E Mount Adapter, EF E Mount, EF Adapter to E Mount, Adapter for...
4 VILTROX EF-NEX IV Electronic Auto-Focus AF Lens Mount Adapter Ring Automatic Converter Compatible... VILTROX EF-NEX IV Electronic Auto-Focus AF Lens Mount Adapter Ring Automatic Converter Compatible...
5 Adapter To Convert Canon EOS, EF, EF-S Lens To E-mount/NEX For Alpha Sony a7, a7S, a7IIK, a7II, a7R... Adapter To Convert Canon EOS, EF, EF-S Lens To E-mount/NEX For Alpha Sony a7, a7S, a7IIK, a7II,...
6 Altson EF/EF-S Lens to Sony E Mount T Smart Adapter Ring Black (CEF-SE) Altson EF/EF-S Lens to Sony E Mount T Smart Adapter Ring Black (CEF-SE)
7 Viltrox EF-NEX IV Auto Focus Lens Mount Adapter Aperture Control, EXIF Transmitting with CDAF PDAF... Viltrox EF-NEX IV Auto Focus Lens Mount Adapter Aperture Control, EXIF Transmitting with CDAF...
8 FocusFoto FOTGA Adapter Ring for EOS EF EF-S Lens to Sony E-Mount Mirrorless Camera NEX-5R 5T 6... FocusFoto FOTGA Adapter Ring for EOS EF EF-S Lens to Sony E-Mount Mirrorless Camera NEX-5R 5T 6...
9 Fotga Tilt Lens Mount Adapter for Canon EOS EF EF-S Lens to Sony E-mount NEX-5N NEX-5R NEX5T NEX6... Fotga Tilt Lens Mount Adapter for Canon EOS EF EF-S Lens to Sony E-mount NEX-5N NEX-5R NEX5T NEX6...
10 Fotodiox Pro Fusion Plus Smart Adapter Compatible with Canon EOS EF/EF-S Lenses on Select Sony... Fotodiox Pro Fusion Plus Smart Adapter Compatible with Canon EOS EF/EF-S Lenses on Select Sony...
11 VILTROX EF-NEX IV High Speed Auto Focus Lens Mount Adapter Ring for Canon EF/EF-S Lens to Camera... VILTROX EF-NEX IV High Speed Auto Focus Lens Mount Adapter Ring for Canon EF/EF-S Lens to Camera...
12 Canon RF50mm F1.8 STM for Canon Full Frame Mirrorless RF Mount Cameras [EOS R, EOS RP, EOS R5, EOS... Canon RF50mm F1.8 STM for Canon Full Frame Mirrorless RF Mount Cameras [EOS R, EOS RP, EOS R5,...
13 Sony a7 III ILCE7M3/B Full-Frame Mirrorless Interchangeable-Lens Camera with 3-Inch LCD, Body... Sony a7 III ILCE7M3/B Full-Frame Mirrorless Interchangeable-Lens Camera with 3-Inch LCD, Body...
14 Sony α7R IV Full-frame Mirrorless Interchangeable Lens Camera (ILCE7RM4/B) Sony α7R IV Full-frame Mirrorless Interchangeable Lens Camera (ILCE7RM4/B)
15 EF/EF-S Lens to Sony E Mount T Smart Adapter, Auto Focus Lens Adapter Ring for Canon EF/EF-S Lens to... EF/EF-S Lens to Sony E Mount T Smart Adapter, Auto Focus Lens Adapter Ring for Canon EF/EF-S Lens...
16 Fotodiox Lens Mount Adapter Compatible with Canon EOS EF and EF-S Lenses on Sony E-Mount Cameras,... Fotodiox Lens Mount Adapter Compatible with Canon EOS EF and EF-S Lenses on Sony E-Mount Cameras,...
17 Sigma MC-11 Mount Converter/Lens Adapter Canon EF to Sony E Bundle with 64GB Extreme Memory Card, IR... Sigma MC-11 Mount Converter/Lens Adapter Canon EF to Sony E Bundle with 64GB Extreme Memory Card,...
18 Canon EF Lens to Sony E Mount T Smart Adapter (Mark V) Canon EF Lens to Sony E Mount T Smart Adapter (Mark V)
19 JINTU Auto Focus Lens Mount Adapter Ring EF-NEX II for Canon EOS EF/EF-S to Sony E Mount Mirrorless... JINTU Auto Focus Lens Mount Adapter Ring EF-NEX II for Canon EOS EF/EF-S to Sony E Mount...
20 VILTROX Autofocus EF to E Mount Lens Adapter EF-E5 for Sony E Mount,Compatible with Canon EF/EF-S... VILTROX Autofocus EF to E Mount Lens Adapter EF-E5 for Sony E Mount,Compatible with Canon EF/EF-S...
Bestseller No. 1
VILTROX EF-E5 5th Generation Autofocus EF to E Mount Lens Adapter Compatible with Canon EF/EF-S Lens...
  • 【Fifth generation products】Note: (On "PDAF"mode,auto focus function is not available in video mode.)On the basis of the fourth generation(EF-NEX...
  • 【Metal Electronic Contacts】With the metal electronic contacts, camera's aperture, shutter speed and ISO can be controlled through the body. And...
  • 【PDAF/CDAF Dual Mode】Support PDAF phase focus and CDAF contrast focus mode, and two types of focus can switch fast. Also have +/- key for...
  • 【EXIT information transmission & lens IS anti-shake】Built-in software function can record digital photo attribute information and shooting data,...
  • 【Eye Focus】Supports eye focus to track the subject. Accurate human eye recognition, easy focus on the human eye, real-time tracking of moving...
Bestseller No. 2
Fotasy Manual Canon EF Lens to Sony FE Mount Adapter, EF E-Mount, EF Adapter to E Mount, for Sony...
  • Canon EF to E mount adapter/ EF to FE adapter allows Canon EOS EF lens to fit on Sony E-mount mirrorless camera body
  • Infinity Focus
  • There is no electrical contacts in the adapter ring Exposure and focus has to be adjusted manually Automatic diaphragm auto-focusing or any other...
  • As Canon EF/EFS lenses do not have a manual aperture control ring The lens will be wide open by default
  • FE Mount EF Lens Adapter is compatible with Sony alpha a7 a7 II a7 III a7R a7R II a7R III a7S a7S II a7S III a9 a7R IV a6600 a6500 a6400 a6300 a6100...
Bestseller No. 3
Fotasy Manual EF EFS Lens to E Mount Adapter, EF E Mount, EF Adapter to E Mount, Adapter for Cannon...
  • EF to E Mount Adapter / EF to FE Adapter, allows Cannon EOS EF Lens to fit on E-Mount Mirrorless Camera Body.
  • Infinity Focus Guaranteed.
  • Copper Lens mount solid durable
  • There is no electrical contacts in the adapter ring Automatic diaphragm auto-focusing or any other functions will not operated with using this adapter
  • As EF EFS Mount Lenses do not have a manual Aperture Control ring, the lens will be wide open by default.
Bestseller No. 4
VILTROX EF-NEX IV Electronic Auto-Focus AF Lens Mount Adapter Ring Automatic Converter Compatible...
  • 📷【Compatibility】The 4nd generation{canon ef/ef-s to sony E adapter}! EF-NEX IV version, allows Canon EF and EF-S mount series lenses to be...
  • 📷【Dual Auto Focus mode function】PDAF mode (phase detection auto focus): Focus speed is faster. CDAF mode (contrast detection auto focus): Focus...
  • 📷【Aperture Control & Built-in IS Stabilization】Interior built-in aperture motor and an electronic contact; aperture of the lens controlled by...
  • 📷【EXIF Signal Transmission】use PIN gold plated needle to transmit signal, greatly enhancing its transmission performance; enjoy EXIF signal...
  • 📷【Fashionable Design】USB firmware upgrade; designed with 1/4 screws at the bottom, which can be mounted on tripod or other support platform;...
Bestseller No. 5
Adapter To Convert Canon EOS, EF, EF-S Lens To E-mount/NEX For Alpha Sony a7, a7S, a7IIK, a7II, a7R...
  • FLEXIBILITY: Allows You to Mount Your Canon EF, EF-S Lens onto Sony E-Mount Camera.
  • ALUMINUM ADAPTER: The Aluminum Adapter is designed to fit the lens securely, yet can still be removed easily when not needed.
  • INFINITY FOCUS: The lens will retain its ability to focus to infinity.
  • RELEASE BUTTON: Release button is smooth.
  • PLEASE NOTE: Autofocus will be disabled by the lens adapter as there will be no electrical communication between camera body and lens.
Bestseller No. 6
Altson EF/EF-S Lens to Sony E Mount T Smart Adapter Ring Black (CEF-SE)
  • 1.Compatible with Sony E mount are A7/A9/A7S/A7 II/A7S II/A7R II/A7R/A5300/A6000/A6300 A6500. While suitable for Sony Camera models are...
  • 2.Support IS lens stabilization function. It can makes your photos in good sharpness in most of situations, whichever is moving, weak light, and night...
  • 3.CEF-SE comes with the Gold-Plating Contact, cleanly support high speed Auto Focus, and you can adjust aperture directly from the camera side to...
  • 4.In CDAF (contrast detection autofocus)is made from, you can move the lens to improve the images of the focusing area, making your photos more...
  • 5.Metal PIN, CEF-SE can realize EXIF info. Transmission; With metal electronic contacts, it greatly enhances conductivity and effectively transports...
Bestseller No. 7
Viltrox EF-NEX IV Auto Focus Lens Mount Adapter Aperture Control, EXIF Transmitting with CDAF PDAF...
  • Viltrox EF-NEX IV mount adapter is designed for Canon EF/EF-S series lens to be perfectly mounted on Sony E mount mirrorless cameras
  • Two Auto Focus model: Faster Focus Speed of PDAF & Higher success Focus Rate of CDAF,Fast switching between PDAF and CDAF
  • Support EXIF Info. Transmitting ,Electronic Aperture Control and Lens IS Stabilization Function
  • The adapter mount is made of metal with surface plating treatment, very durable and stable.
  • Support firmware upgrade via USB port.With 1/4" Thread Tripod Foot at the Bottom.
Bestseller No. 8
FocusFoto FOTGA Adapter Ring for EOS EF EF-S Lens to Sony E-Mount Mirrorless Camera NEX-5R 5T 6...
  • Made of aluminum alloy (not plastic), anodized construction.
  • Allows EOS EF EF-S mount lens to be used on Sony E-Mount mirrorless camera body.
  • Allows focus to infinity. Supports AV / M mode.
  • Please note although the lens will fit physically, automatic diaphragm, auto-focusing, or any other functions will not operated with using this...
  • Designed for Sony NEX-3 NEX-3C NEX-3N NEX-5 NEX-5C NEX-5N NEX-5R NEX5T NEX6 NEX7 NEX-F3 a6500 a6300 a6000 a5100 a5000 a3500 a3000 Alpha A7 A7R A7S &...
Bestseller No. 9
Fotga Tilt Lens Mount Adapter for Canon EOS EF EF-S Lens to Sony E-mount NEX-5N NEX-5R NEX5T NEX6...
  • Smooth surface for effortless mount,infinity focus allowed.The adapters are precision made to insure the perfect fit
  • Made of Aluminum and Brass,Diaphragm control of the lens is set manually
  • Compatible Cameras:Sony E-mount Mirrorless cameras
  • Compatible Cameras Lens:Canon EF/EF-S Lens
  • It tilts from 0 to 6 degrees – and rotates 360 degrees
SaleBestseller No. 10
Fotodiox Pro Fusion Plus Smart Adapter Compatible with Canon EOS EF/EF-S Lenses on Select Sony...
  • FUSION smart adapter that restores automated lens functions such as autofocus, aperture control, image stabilization; Compatible with select Canon...
  • Includes USB port for firmware updates futureproofing investment; Updates available on manufacturer website expand compatibility and functionality
  • Features removable tripod foot with 1/4”-20 socket; Metal lens mount and springs for solid and secure fit
  • Compatible with Sony NEX-7/a5100/a6100/a6300/a6500/a7/a7s/a7r/a7 II/a7s II/a7r II/a7 III/a7r III/a9; Lens compatibility limited
  • Limited 2-Year Manufacturer Warranty
Bestseller No. 11
VILTROX EF-NEX IV High Speed Auto Focus Lens Mount Adapter Ring for Canon EF/EF-S Lens to Camera...
  • Mounts Canon EF/EF-S Lenses to Sony A7 series full frame, Sony A9, A7, A6XXX and NEX series cameras
  • USB Upgraded Port: for adapter firmware update, connect adapter to computer via USB cable and execute latest file download from official website. Do...
  • Two Auto-focus mode switches (PDAF&CDAF ); EXIF signal transmission function; Support adjustable aperture from camera body to lens's aperture.
  • Built-in metal electronic contact & generation focus system, EF-NEX IV lens adapter can achieve 50% speed improvement so as to get faster and more...
  • Good stability with anti-shaking function. Detachable tripod foot mount adapter (1/4" screw) for more convenient use.
SaleBestseller No. 12
Canon RF50mm F1.8 STM for Canon Full Frame Mirrorless RF Mount Cameras [EOS R, EOS RP, EOS R5, EOS...
  • Compact, Lightweight Fixed 50 millimeter Focal Length Lens.
  • Large F, 1.8 Aperture for Low-Light Photography and Creative Background Blur
  • A Stepping Motor (Gear-Type STM) Provides Smooth and Quiet Continuous AF During Video Recording, As Well As When Shooting Photos
  • Control Ring for Direct Setting Changes
  • Optimized Lens Placement and Coatings Help Deliver Outstanding Color Balance, While Minimizing Ghosting and Flare
Bestseller No. 13
Sony a7 III ILCE7M3/B Full-Frame Mirrorless Interchangeable-Lens Camera with 3-Inch LCD, Body...
  • Advanced 24.2MP BSI full frame Image Sensor w/ 1.8X readout speed
  • 15 stop dynamic range, 14 bit uncompressed RAW, ISO 50 to 204,800. Compatible with Sony E mount lenses. Can be connected via Bluetooth with...
  • Up to 10fps silent or mechanical shutter with AE/AF tracking. Battery life (Still Images): Approx. 610 shots (Viewfinder) / approx. 710 shots (LCD...
  • 693 phase detection / 425 contrast AF points w/ 93 percent image coverage. Focus sensor: Exmor R CMOS sensor
  • In the box: Rechargeable battery (NP FZ100), AC adapter (AC UUD12), shoulder strap, body cap, Accessory shoe cap, Eyepiece cup, Micro USB cable....
Bestseller No. 14
Sony α7R IV Full-frame Mirrorless Interchangeable Lens Camera (ILCE7RM4/B)
  • Stunning resolution: world’s first 61MP full-frame 35mm back-illuminated Exmore R CMOS Image Sensor. The product is compatible with Final Cut Pro X...
  • High speed: up to 10Fps continuous shooting at 61MP with AE/AF tracking; 26. 2MP in APS-C crop mode
  • Fast Hybrid Autofocus: 567 Phase detection AF points and 425 contrast AF points to cover more area
  • Advanced subject recognition: real-time tracking and real-time eye AF for humans, animals and movies
  • Accurate color reproduction: 15-stop dynamic Range at low sensitivities for greater Color accuracy
Bestseller No. 15
EF/EF-S Lens to Sony E Mount T Smart Adapter, Auto Focus Lens Adapter Ring for Canon EF/EF-S Lens to...
  • Compatible with Sony E mount camera: A7/A9/A7S/A7 II/A7S II/A7R II/A7R/A5300/A6000/A6300 A6500. Compatible with Sony PXW-FS5M2/NEX-7/NEX-FS100.
  • The CEF-SE transfers EXIF data information to camera. With metal electronic contacts, it greatly enhances conductivity and effectively transports EXIF...
  • In CDAF (contrast detection autofocus)is made from, you can move the lens to improve the images of the focusing area, making your pictures cleaner,...
  • Support high speed Auto Focus, brings a smooth focus experience and more professional photography. You can adjust aperture directly from the camera...
  • Support IS lens stabilization function. Built-in USB port for firmware upgrade.
Bestseller No. 16
Fotodiox Lens Mount Adapter Compatible with Canon EOS EF and EF-S Lenses on Sony E-Mount Cameras,...
  • Compatible with Canon EOS EF and EF-S lenses on Sony E-mount mirrorless cameras
  • Constructed from anodized aluminum for durability
  • Quick and inexpensive way to Adapt lenses to your camera
  • Infinity focus or beyond allowed
  • Limited 2-year Manufacturer
Bestseller No. 17
Sigma MC-11 Mount Converter/Lens Adapter Canon EF to Sony E Bundle with 64GB Extreme Memory Card, IR...
  • This Sigma MC-11 Mount Converter/Lens Adapter comes with all the manufacturer accessories and a 4-year USA warranty along with a 16-piece Bundle which...
  • FOR USE WITH - Select Sigma Art, Contemporary and Sport Canon EF-Mount lens on Sony E-Mount Cameras.
  • FULL PERFORMANCE - Including autofocus and auto-exposure, as well as in-camera correction technologies. An integrated LED can be used to display...
  • HIGH IMAGE QUALITY - The interior of the adapter is flocked to reduce reflections, and it also retains full Exif data to benefit post-production and...
  • COMPATIBILITY - All Sony mirrorless digital cameras including APS-C and full frame a9, a7R, a7S, a7, a1, ZV-E10, a6600, a6500, a6400, a6300, a6100,...
Bestseller No. 18
Canon EF Lens to Sony E Mount T Smart Adapter (Mark V)
  • Metabones Smart Adapter - Front Cap - Rear Cap - Hex Key - 1 Year Warranty
  • Rubber gasket protects E-mount connection from dust and moisture.
  • Compatible with Sony FS7 Mark II camera
  • Status notification LED light
  • Dedicated switch controls in-body image stabilization (IBIS)
Bestseller No. 19
JINTU Auto Focus Lens Mount Adapter Ring EF-NEX II for Canon EOS EF/EF-S to Sony E Mount Mirrorless...
  • AF Lens adapter : EF-NEX II Allow Canon EF Lens with Sony NEX E Mount Camera, which allows you to have more purchasing choices of lens. Maintain of...
  • More Faster Focus Speed : The upgraded internal circuit enables you to have a faster focusing speed and compatibility with multi brand lens . Such as...
  • Built-in IS Stabilization, Aperture Control. Full-frame adapter aperture hole design, Aperture exactly being aligned via the mount adapter. Zinc alloy...
  • This adapter have the newest chip, and the focusing speed is very fast. If the lens model is very old, the focusing speed may not be able to keep up....
  • Limited 2-Year Manufacturer Warranty. detachable support tripod,Bottom Tripod 1/4 screw can be mounted on tripod or other support platform. Note: if...
Bestseller No. 20
VILTROX Autofocus EF to E Mount Lens Adapter EF-E5 for Sony E Mount,Compatible with Canon EF/EF-S...
  • Compatibility: EF-E5 mount adapter ring allows Canon EF and EF-S mount lenses to be mounted on Sony E-mount mirrorless digital cameras. If you are not...
  • Product update design: The newly added OLED smart screen display can display aperture, focal length, adapter ring mode and manual aperture mode; +/-...
  • EXIT&IS: Built-in software function can record digital photo attribute information and shooting data, support camera viewfinder aperture, shutter,...
  • High performance: The metal electronic contacts of the product itself can control the camera's aperture, shutter speed and ISO through the body. At...
  • USB Upgrade Interface: EF-E5 connects the adapter to the computer via a USB cable, updates the latest data to upgrade the firmware, and is compatible...

Having trouble finding a great Sony A7s Canon Ef Adapter?

This problem is well understood by us because we have gone through the entire Sony A7s Canon Ef Adapter research process ourselves, which is why we have put together a comprehensive list of the best Sony A7s Canon Ef Adapters available in the market today.

After hours of searching and using all the models on the market, we have found the best Sony A7s Canon Ef Adapter for 2023. See our ranking below!

How Do You Buy The Best Sony A7s Canon Ef Adapter?

Do you get stressed out thinking about shopping for a great Sony A7s Canon Ef Adapter? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching Sony A7s Canon Ef Adapter, which is why we have assembled a comprehensive list of the greatest Sony A7s Canon Ef Adapter available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Sony A7s Canon Ef Adapter that you consider buying. Your questions might include the following:

  • Is it worth buying an Sony A7s Canon Ef Adapter?
  • What benefits are there with buying an Sony A7s Canon Ef Adapter?
  • What factors deserve consideration when shopping for an effective Sony A7s Canon Ef Adapter?
  • Why is it crucial to invest in any Sony A7s Canon Ef Adapter, much less the best one?
  • Which Sony A7s Canon Ef Adapter are good in the current market?
  • Where can you find information like this about Sony A7s Canon Ef Adapter?

We’re convinced that you likely have far more questions than just these regarding Sony A7s Canon Ef Adapter, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for Sony A7s Canon Ef Adapter, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Sony A7s Canon Ef Adapter. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an Sony A7s Canon Ef Adapter buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Sony A7s Canon Ef Adapter currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of Sony A7s Canon Ef Adapter has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an Sony A7s Canon Ef Adapter?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your Sony A7s Canon Ef Adapter.
  5. Customer Ratings: Number ratings grade Sony A7s Canon Ef Adapter objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Sony A7s Canon Ef Adapter.
  7. Product Quality: You don’t always get what you pay for with an Sony A7s Canon Ef Adapter, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an Sony A7s Canon Ef Adapter is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining Sony A7s Canon Ef Adapter information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding Sony A7s Canon Ef Adapter is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

Related Post:

FAQ:

Q: Can I use EF lenses with the Sony A7S?

A: The Canon standard line of lenses are probably the most widely used by both prosumers and professionals alike. The only hitch with EF mounts is the fact that the Sony A7S doesn’t allow you to mount these natively to the camera. However, fret not… there are ways to get around this problem, most notably the use of lens adapters.

Q: What is the best lens for Sony A7?

A: For the Sony A7 (and having a Canon body), do you recomend to buy the: 1- Canon EF 70-200mm f/2.8L IS II USM + Fotodiox or Viltrox adapter; or 2- Sony FE 70-200mm f/4.0 G OSS? Thanks!

Q: What is the Best Af smart lens adapter for Canon EOS to Sony?

A: Metabones is the original – and most popular – AF Smart lens adapter for Canon EOS to Sony E-mount.This is my adapter of choice as it’s the only Smart Adapter that gets regular user-installable firmware updates that improve AF performance with many Canon EF lenses not supported by cheaper adapters. Order from B&H Photo | Amazon

Q: What is the best adapter for Canon EF to Sony E-mount?

A: • Metabones Canon EF to Sony E-Mount Smart Adapter IV ($400) • Fotodiox AF Adapter for Canon EF to Sony E-Mount ($100)