Please choose a department

Canon EF to Sony NEX

Price Pledge

Price Pledge ensures we won't be beaten on price! We actively monitor the prices offered by our competitors daily and adjust our own pricing accordingly.

At a glance
Metabones Canon EF Lens to Sony NEX Body Smart Adapter (Mark IV) Black Matt (p/n MB_EF-E-BT4)

Price Pledge

Price Pledge ensures we won't be beaten on price! We actively monitor the prices offered by our competitors daily and adjust our own pricing accordingly.

49541
Catalogue:
metabones_ef-e-bt4_canon-ef-to-e-mount / MB_EF-E-BT4

Price Pledge

Price Pledge ensures we won't be beaten on price! We actively monitor the prices offered by our competitors daily and adjust our own pricing accordingly.

Unfortunatley we no longer sell this product
The product details shown, are provided for historical reference only. Check out our suggestions below

Shipping Calculator

Please select Country
Please enter postcode
Estimated Shipping

Terms and conditions

The prices and shipping options are an estimate based on the purchase of a single item with nothing else in your basket. The prices and options below do not include shipping regulations and duties which will be checked in the checkout process.

At CVP we always strive to get your order to you as quickly as possible, but in the interest of clarity please note that next day is defined as the next working day (ie: excluding weekends, UK bank holidays and public holidays).

Orders placed and security cleared* before 14:00GMT where all items are in stock will normally** be dispatched on the same business day for ultimate delivery according to the shipping method selected.

Where an item is not physically in stock, the actual delivery time will be extended by the lead time for the product in question. Shipping to the Channel Islands, Northern Ireland, Republic of Ireland and some remote UK postcodes are not next day but 2 working days.

All transactions are subject to CVP security checks which are for our mutual protection against identity theft and fraud. In the event that additional checks are required you will be informed and dispatch time will be extended by the time taken to resolve any queries raised. We apologise for any inconvenience this may cause.

*Due to unforseen circumstances, on some occasions same day dispatch may not be possible. In this event we will always do our utmost to keep you fully informed of any delay imposed.

For more information on shipping, please read our Delivery and Collection or please our Terms and Conditions

Product Details

Overview
Enhancement on new MARK IV (MB_EF-E-BT4)  vs. old MARK IV (MB_EF-E-BM4):
The inner opening is lined with flocking material coating. This will further reduce internal reflection when a tilt-shift (TS) lens is used.
Electronic
Phase-detect autofocus support on A7RII.
Supports 5-axis in-body image stabilization of A7II and A7RII,
Powered by camera body. No external power source required.
Aperture control from camera body.
Wide open button (opposite of depth-of-field preview function) makes manual focusing easy and assignable to a custom function on A7 series.
High performance 32-bit processor and efficient switched-mode power supply.
Supports image stabilization (IS) lenses.
Supports electronic manual focusing (e.g. EF 85/1.2L II and discontinued EF 50/1.0L)
EXIF support (focal length, aperture, zoom range)
Distance and zoom display on VG and FS series camcorders (lens with distance information support...
Included in box
  • 1x Metabones EF to Sony NEX Adapter

About the Canon EF to Sony NEX

Enhancement on new MARK IV (MB_EF-E-BT4)  vs. old MARK IV (MB_EF-E-BM4):
The inner opening is lined with flocking material coating. This will further reduce internal reflection when a tilt-shift (TS) lens is used.

Electronic

  • Phase-detect autofocus support on A7RII.
  • Supports 5-axis in-body image stabilization of A7II and A7RII,
  • Powered by camera body. No external power source required.
  • Aperture control from camera body.
  • Wide open button (opposite of depth-of-field preview function) makes manual focusing easy and assignable to a custom function on A7 series.
  • High performance 32-bit processor and efficient switched-mode power supply.
  • Supports image stabilization (IS) lenses.
  • Supports electronic manual focusing (e.g. EF 85/1.2L II and discontinued EF 50/1.0L)
  • EXIF support (focal length, aperture, zoom range)
  • Distance and zoom display on VG and FS series camcorders (lens with distance information support required).
  • Auto magnify (lens with distance information support required)
  • Auto "APS-C Size Capture" on full-frame cameras with Canon EF-S lenses and many third party DX lenses.


Optical/mechanical

  • Fits both EF and EF-S lenses. (Vignetting at corners may occur for certain EF-S lenses because they are designed to cover a 1.6x crop image circle but Sony NEX has a 1.5x crop sensor.)
  • Flocking material coated inside the opening to reduce internal reflection.
  • The tripod foot is detachable and compatible with Arca Swiss, Markins, Photo cam ball heads.

 

Why Metabones?

Since their inception, Metabones have been designing and manufacturing lens adapters recognized among professionals and enthusiasts as leaders in design and workmanship.

Contrary to the popular trend of other factories using an aluminum ring painted black on the camera-body-side, Metabones instead take no short-cut but use precision-machined brass with chromium plating on both the camera-body and the lens sides of their adapters, in order to ensure smooth mounting, great appearance, and durability. The lens side of the adapter features a strong leaf-spring structure, strengthening the adapter-lens connection and ensuring tightness of the lens in order to reduce wear and prevent focus errors and optical alignment issues from appearing.

Metabones use matte-black treatment to keep internal reflection to a minimum in order to maintain the maximum optical quality possible with the lens.

All Metabones Adapters follow this tradition of uncompromising precision, robust build quality and outstanding finish. The new Smart AdapterTM series of products add industry-leading electronic interfacing technology from Canada, with true electronic control of the lens' aperture directly from the camera body.

Features

  • Both camera-side and lens-side of the adapter are made of brass, precision-machined and plated with chromium.
  • Satin surface finish - just like your OEM lens and camera mounts.
  • Precise fit and solid connection - lens has no play, gap or wiggling when mounted on adapter and no adjustments are required to fit your lens.
  • Designed to reach infinity focus while maintaining the correct registration distance required to maintain optical quality of CRC lenses or lenses with floating elements.

 Smart AdapterTM  series adapters have the following additional features

  • True electronic integration of aperture diaphragm - let camera automatically choose aperture in P or S exposure modes, or dial in yourself on the camera body in A or M modes.
  • EXIF data such as lens identification, focal length and aperture.
Compatibility
EF lenses (see below for list of tested lenses)
EF-S lenses (see note 1)
Image stabilization (IS)
Electronic manual focusing (e.g. EF 85/1.2L II and discontinued EF 50/1.0L)
EXIF (focal length, aperture, zoom range)
P, A, S, M exposure modes
Autofocus (see autofocus support section below)
Distance and zoom display on VG and FS series camcorders (see note 3)
Auto magnify (see note 2)
Contax N mount lenses modified to Canon EF by Conurus
Contax 645 NAM-1 adapter modified to Canon EF by Conurus
Sigma, Tamron and Tokina lenses in Canon EF mount (see note 3)
Not Supported
Lens correction such as peripheral shading, CA and distortion
Focus confirmation "chip" (e.g. Dandelion)
Stacking another lens mount adapter on top (see note 4)
Notes Vignetting at corners may occur for certain EF-S lenses because they are designed to cover a 1.6x crop image circle but Sony NEX has a 1.5x crop sensor.
Requires lenses supporting distance information.
A third party zoom lens may need to be registered with the Smart Adapter first in order to detect its maximum aperture. Autofocus is disabled for most third-party lenses.
For example, some improperly-made M42 screw mount adapters may cause a short-circuit with the electronic contacts of the Smart Adapter and cause damage to the Smart Adapter and/or camera body.
Tested Camera Bodies
A7 (Mark IV supports auto "APS-C Size Capture" with EF-S lens)
A7R (Mark IV supports auto "APS-C Size Capture" with EF-S lens)
NEX-FS700 (autofocus works only in photo mode, but is disabled in movie capture mode)
NEX-FS100 (autofocus works only in photo mode, but is disabled in movie capture mode)
NEX-EA50
NEX-VG900 (Mark IV supports auto "APS-C Size Capture" with EF-S lens)
NEX-VG30
NEX-VG20
NEX-VG10
NEX-7
NEX-6
NEX-5R
NEX-5N
NEX-5
NEX-C3
NEX-3
NEX-A6000
Tested Lenses (The following lenses have been tested for autofocus operation. Minimum firmware version required shown in parentheses).
Canon EF primes
EF 14/2.8L II USM
EF 24/1.4L II USM
EF 24/2.8 IS USM
EF 35/1.4L USM (Ver.19)
EF 50/1.2L USM
EF 85/1.2L II USM
EF 85/1.8 USM (Ver.18)
EF 100/2.8 USM macro (Ver.17)
EF 135/2L USM (Ver.17)
EF 200/2.8L II USM (Ver.17)
EF 300/2.8L IS USM
Extender EF 1.4x III
Extender EF 2x (mark I)
Canon EF zooms
EF 8-15/4L USM fisheye
EF 17-40/4L USM
EF 20-35/2.8L (Ver.18)
EF 22-55/4-5.6 USM
EF 24-70/2.8L USM II
EF 28-80/3.5-5.6 II (Ver.18)
EF 28-90/4-5.6 III
EF 35-350/3.5-5.6L (Ver.18)
EF 70-200/2.8L IS USM II
EF 70-200/4L USM
EF 70-200/4L IS USM
EF 70-300/4-5.6L IS USM
EF 70-300/4-5.6 IS USM
EF 100-300/5.6 (non-L, not USM, push-pull zoom) (Ver.18)
EF 100-400/4.5-5.6L IS USM
Canon EF-S
EF-S 10-22/3.5-4.5 USM
EF-S 17-55/2.8 IS USM
EF-S 17-85/4-5.6 IS USM
EF-S 18-55/3.5-5.6
EF-S 18-55/3.5-5.6 IS
EF-S 18-135/3.5-5.6 IS
EF-S 60/2.8 macro USM
Sigma DC
17-70/2.8-4 DC OS HSM (Ver.15)
30/1.4 DC HSM old version (Ver.18)
Tamron
SP 24-70/2.8 Di VC USD A007 (Ver.15)
SP 70-200/2.8 Di VC USD A009 (Ver.31)
Tokina (full frame)
28-80/3.5-5.6 (Ver.18)
Tokina DX
AT-X PRO SD 11-16/2.8 (IF) DX (Ver.15)
Manual Focus Only
The following lenses have been tested with previous firmware versions with manual focus, aperture control, image stabilization (if applicable) and EXIF support. Autofocus is supported only for those lenses marked with an asterisk (*) on NEX-5R/6
Canon EF primes
EF 14/2.8L (mark I)
EF 20/2.8 USM*
EF 24/1.4L USM (mark I)
EF 24/2.8 (old version, non-IS)
TS-E 24/3.5L
TS-E 45/2.8
EF 50/1.4 USM
EF 50/1.8 II
MP-E 65/2.8 macro
EF 85/1.2L (mark I)
EF 400/5.6L USM
Canon EF zooms
EF 24-70/2.8L (mark I)
EF 24-105/4L IS USM*
EF 28-70/3.5-4.5 II
EF 35-80/4-5.6
Contax N modified by Conurus
Vario-Sonnar 17-35/2.8
Vario-Sonnar 24-85/3.5-4.5
Vario-Sonnar 28-80/3.5-5.6
Planar 50/1.4
Planar 85/1.4
Makro-Sonnar 100/2.8 (Ver.21)
NAM-1 adapter
Sigma (full frame)
24-70/2.8 EX HSM
24-70/2.8 EX DG HSM
50/1.4 DG HSM (Ver.17)*
50/2.8 DG Macro
70-200/2.8 EX DG Macro HSM
100-300/4
Sigma DC
12-24/4.5-5.6 EX ASPH
17-35/2.8-4 EX HSM ASPH
18-125/3.5-5.6 DC OS HSM
30/1.4 EX DC HSM new version (Ver.17)
Tamron
18-270/4.5-6.3 VC
SP 28-75/2.8
SP 70-200/2.8 Di LD A001
Tokina
AT-X PRO 28-70/2.8
Zeiss ZE
This Smart Adapter is also compatible with fully manual lenses which have no electrical contacts.

Autofocus

  • Fast phase-detect AF is available only on A7RII. on other Sony cameras, contrast-detect AF with an EF mount lens is disappointingly slow and inadequate for all but static subjects,
  • Even on A7RII, long telephoto lenses hunt more often and autofocus performance progressively deteriorates as focal length gets longer.
  • A7RII supports only contrast-detect AF during video recording. This means video AF speed may be unsatisfactory.
  • During movie capture, autofocus needs to be manually activiated by half-pressing the shutter release button if subject moves to a different distance. Since contrast-detect autofocus speed is slow, there may be visible disruption in the resulting footage.
  • With PXW-FS7, NEX-FS700 and NEX-FS100, autofocus works only in photo mode but disabled in movie capture mode.
  • Continuous AF is not supported. (Does not work with contrast-detect AF and may have unsatisfactory performance with phase-detect AF of A7RII.)
  • Eye AF is not supported.
  • DMF mode (direct manual focus) is not supported.
  • The first two autofocus attempts are used to calibrate the lens and as a result may not lock successfully on the target. Half-press the shutter release button again and autofocus will lock successfully.
  • Autofocus may have difficultly locking onto subjects which are very close to the nearest focusing distance of the lens.
  • Autofocus accuracy depends heavily on the working condition of the lens. Lenses with hidden problems which may not be apparent on Canon DSLRs will lead to inaccurate and unreliable autofocus on Sony NEX. Typical problems of this kind that we have seen include an unsmooth/erratic autofocus mechanism (e.g. getting stuck intermittently at a certain focusing distance), a faulty/worn-out distance encoder or other faulty/worn-out internal sensors.


Other

  • No support for lens corrections such as peripheral shading, CA and distortion.

What others think

Overall Rating
[[review_quality]] stars
Rated 4.89 out of 5 based on 9 reviews
5 Stars
(8)
4 Stars
(1)
3 Stars
(0)
2 Stars
(0)
1 Stars
(0)
Reviews
Great product that works well with my Sony camera and Canon lens
5 stars

Sarah B on 2016-05-09


Not much to say about it. It is a way(the only/best way) to get your Canon glass attached to your Sony A7RII. The adapter comes in a solid box, 2 allen keys included, the connections body to Metabones to Canon glass is perfect and feels good. All the metadata from lens (through adapter) to body are preserved.
5 stars

Harm Van Den Broek on 2016-06-13


No PDF manual available. Instructions required a bit of thought. Otherwise product much better than expected. Worth the premium price.
4 stars

Feefo on 2015-10-03


Perfect fit for E to EF lenses.
5 stars

Feefo on 2015-06-19


Does what it supposed to do - very solid build. Love to be able to use my Canon lenses on my Sony's
5 stars

Feefo on 2015-06-13


Perfect!
5 stars

Feefo on 2014-07-19


Excellent
5 stars

Feefo on 2014-08-17


Arrived on time and in good order. Good product.
5 stars

Feefo on 2014-10-26


Flawless. Sometime issues on autofocus but we never use autofocus.
5 stars

Feefo on 2014-11-19


Frequently Asked Questions

1 question(s) | 1 answers(s)

How much wider does this make a Canon Lens? i.e: 0.7x wider? Thanks

Oren Wright 09-07-2014

Manufacturer doesn’t say and it varies from lens to lens.md

Do you have a question about the Canon EF to Sony NEX?

We want to publish your question, so please:

  • keep your question focused on the product
  • avoid writing about customer service; contact us instead if you have issues requiring immediate attention
  • refrain from mentioning competitors or the specific price you paid for the product
  • do not include any personally identifiable information, such as full names
  • or how about these?