Canon EF to M43 Speedbooster on the horizon

August 1st, 2013
Canon EF to M43 Speedbooster on the horizon

metabones

It’s look as if Metabones will release a new adaptor in August that will allow your micro 4/3 cameras to adopt Canon EF via an electronic speedbooster.

If you’re like myself who is a Canon shooter with a large EF lens collection, this is fantastic news. The Blackmagic Pocket Cinema Camera, Panasonic GH2, GH3 will now electronically except EF mount lenses, whilst increasing the sensor’s field of view, added sharpness and light sensitivity.

Canon EF lenses use proprietary electronics to control the aperture, IS and AF; this complicates full compatibility with other camera bodies via adaptors; It’s the reason why Camera “X” to EF mount always takes a little longer, and costs a little more.

For those who haven’t kept up to date on the fantastic invention of the speedbooster, this adaptor increases your field of view by 0.71x, increases the sharpness of your lens, and increases light sensitivity by 1 stop.

Please note, this only works with active m43 mount cameras, therefore will not work with The blackmagic cinema camera MFT (unless your EF mount lenses are manual aperture).

However, it will be a great addition to the Blackmagic Pocket Cinema Camera and will turn your 50mm f/1.4 lens into a 102mm f/1.0! This adaptor makes the pocket cinema much more appealable now, especially if the adaptor powers the IS (Image Stabilization) like the Canon EF to Sony E mount does.

via nofilmschool/43rumous

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Josh S
Guest
July 30th, 2014

this post about metabones EF-to-m43 adaptor is almost a year old. Any news/developments on this?

Guest
July 30th, 2014
Reply to  Josh S

Just that it is still under development.

Nothing concrete unfortunately

Brennan
Brennan
Guest
May 1st, 2014

I can’t wait for this adapter, I love my rokinon cine lenses (EF) and I want to upgrade my camera to a gh4. With an ef-mf/t adapter my lenses would match up almost the same! Get on it metabones! I don’t care about autofocus!

Damon
Guest
June 3rd, 2014
Reply to  Brennan

I know! I wish they would just make a “dumb” speedbooster instead of waiting for an active EF connection. I just want to use manual iris cinema lenses and don’t give a rip about the electronics. Just give me the lens mount!

(I know that lens mount adapters exist, but I want the Speedboost as well)

Rafael Cedeno
Rafael Cedeno
Guest
April 20th, 2014

I have the zeiss slr kit wich have canon mount… If I want to use the adapter in a gh4 could I control the aperture with the adapter ? Cause it’s not manual and I can’t modify the aperture

Guest
April 21st, 2014
Reply to  Rafael Cedeno

Which Zeiss, Zeiss ZE?

SMSabir
SMSabir
Guest
March 21st, 2014

Thinking to switch to Panasonic GH4 and I am currently a Canon Crop sensor user and recently purchased Sigma 18 35 1.8, can anybody will tell me with this adapter how my lens will perform?

Can I expect it to work as 36 70 1.8 or is my math is totally wrong?

Heri
Guest
November 29th, 2013

I’ve got a few great EF mount lenses such as Sigma 18-35mm and also Canon 85mm f1.2L, it’s now late Nov 2013. Any idea for the launch?

Please Metabones :D

Chris
Chris
Guest
August 27th, 2013

Wouldn’t it be 102mm f/2.9?
(1.4*0.71)*2.88 = f/2.86

Guest
August 27th, 2013
Reply to  Chris

No, the increase in light sensitivity is 1 stop.

The 0.71x applies the the magnification of the focal length.

Chris
Chris
Guest
August 30th, 2013
Reply to  Tim

Ok. Thanks. I’m a newbie. The way I understood it was with a regular
adapter the smaller sensor would still decrease the light sensitivity by 2.88
making it f/4.0, but the speedbooster would improve that by one stop…

Emmet
Emmet
Guest
August 12th, 2013

This company Metabones really are doing a good job with these, I use the MFT speed booster with a GH2, but just take note of the BlackMagic Pocket Camera’s huge crop factor. Good 422 pro res but a lot of lenses will have issues.

Richard Oakes
Member
August 1st, 2013

but pretty similar to using a 50mm on a APS-C camera yeh?

Guest
August 1st, 2013
Reply to  Richard Oakes

Still a bit off APS-C.

50mm APS-C is 80mm equivalent to full frame.

Christophe Mignet
Member
August 1st, 2013

thanks to share this good news! is “your 50mm f/1.4 lens into a 102mm f/1.0!” right?
A 0,71 turn a 50mm into a 35mm, no?
cheers

Guest
August 1st, 2013

That’s correct however the blackmagic cinema camera has a crop factor of 2.88, therefore the focal length before the 0.71 application would be equivilent of 144mm.

Christophe Mignet
Member
August 1st, 2013
Reply to  Tim

thanks for your answer, Tim.

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