BM Cinema Camera 6K Full Frame with EF lenses

Hi,

Does anyone have experience using EF lenses on the new Blackmagic Cinema Camera 6K Full Frame?

I am most interested in the built-in lens stabilization performance.

What EF to L lens mount converter / adapter is best?
Would Tamron EF lenses with with built-in lens stabilization work just as well as on an original Canon EF camera,
like these ones:
SP 35mm F/1.8 Di VC USD
SP 45mm F/1.8 Di VC USD
SP 85mm F/1.8 Di VC USD

Would the SIGMA 24-70mm F2.8 DG OS HSM | Art work on the new Blackmagic Cinema Camera 6K Full Frame with a lens mount converter / adapter?

what about the Canon EF 24-105mm f4L IS USM ?

I have experience using the Canon EF 24-105mm f4L IS USM on a BMPCC 6K (G1). The autofocus does not work, but the built-in lens stabilization works fine on this 6K (G1)

Thanks all for your expert advice and opinion.

Regards,

Wilfred
DOP

I've had success with the Viltrox EF to L mount (active) for a Tamron 24-70mm f2.8 G2. Also works with a Canon 17-55mm f2.8 IS.

Thanks to Adam for his very useful info.

After studying the technical explanation of built-in lens stabilization, it seems to me that the
built-in lens stabilization should work on the L-mount, as long as the lens receives power from the battery from the camera body.
If this information from the Canon site image-stabilisation-lenses applies to all lenses, the gyro sensors are built inside the lens, and therefore, no gyro sensor information passes from the camera body through the lens mount converter / adapter to the lens.

By comparison, I have seen reviews online that show that the autofocus (that the BMPCC does not have to begin with) is slower when using a lens mount converter / adapter

What about the electronic aperture control of the lens using the touch screen of the camera when using a lens mount converter / adapter? Does that work the way it should?

It seems that the lens mount converter / adapter increases the distance between the lens and the camera sensor. Does that influence the focal length of the lens, or does it influence the
maximum / best sharpness of the lens?

I have experience using a Samyang Cine lens on a Canon EOS 80D. With this particular lens, maybe because of the absense of Aperture communication, the maximum possible ISO is used when taking pictures. As a result, the photos are overexposed. The solution is a “trick”. In the menu of the 80D you can choose the mimimum and maximum value of the ISO when using auto ISO. When I set the maximum range to 800 on the Canon EOS 80D, with the Samyang Cine lens, this maximum value of 800 will be used. When I set the maximum range to 400 on the Canon, with the Samyang lens, this maximum value of 400 will be used by the the Canon EOS 80D.

Does the lens mount converter / adapter on a Blackmagic Cinema Camera 6K Full Frame influence the ISO settings or control?

Hi, I have blackmagic 6k ff, so going to buy Viltrox EF to L mount adapter. does it work ok with Canon lens well? imige stabilization works well?
Canon EF 28-135mm f-3.5-5.6 IS - works with this adapter?

Thank you !

With the MC-21 adapter my Sigma Art 24-70 EF doesn't work when the IS switch is ON. The lens looses connection every now and then.

Hi, I have blackmagic 6k ff, so going to buy Viltrox EF to L mount adapter. does it work ok with Canon lens well? imige stabilization works well?
Canon EF 28-135mm f-3.5-5.6 IS - works with this adapter?

Thank you !

I have a Viltrox EF to L Mount adapter and it works with my Canon 17-55mm f2.8. Only in "A" mode, though. Which gives you IS and autofocus, but I just use it for the IS.