Viltrox EF-M2 speedbooster to Panasonic IBIS compatibility

[Martin Matěj]

Hello,

I use panasonic G80 right now.

I would like to ask those of you who have it, if Viltrox EF-M2 speedbooster is reporting the correct focal lenght of Canon EF mount lenses to panasonic camera's IBIS or if I should set it manually myself or buy EF-M1 because I like to be fast and manually setting the focal lenght each time I want to zoom a lens would be impractical.

And if the Viltrox EF-M2 doesn't report the focal lenght correctly what about metabones speedbooster?

Thanks

[Shirozina]

Both the M1 and M2 report the correct focal length with various canon and sigma zooms on my GH5 so I presume it will for other cameras. 

[newfoundmass]

That has been my experience too, though I only use the Sigma 18-35 art lens (I'm looking into getting the Tokina 11-16mm.) But yeah, it reports the correct focal length and aperture.