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4/3 to Micro 4/3 converter and lens responsiveness ?

Started Aug 26, 2018 | Discussions thread
ahaslett
ahaslett Forum Pro • Posts: 12,662
Re: 4/3 to Micro 4/3 converter and lens responsiveness ?

JayDog wrote:

Hello all, getting back into 4/3s system. I am curious what the responsiveness is on the older lenses in 4/3 with the micro 4/3 converter. I was thinking of picking up some longer lenses such as the 50-500 sigma with the 4/3 to micro 4/3 converter?

Does it focus just as fast , as the original mount ?

I currently have a metabones canon to micro mount , curious if it would outperform that mount system ? Right now I have the canon sigma 150-600 with metabones and the G9, g7 panasonic. Curious if the conversion 4/3 to micro would be a little more responsive?

jay

I have a Bigma with FT mount that focusses OK on my EM1.1 in SAF.  In good light it's about the same as on an E30, maybe a bit slower.

I have an EF 300/4 IS USM that focusses OK with an MB4 with the latest firmware.  It can struggle to find focus initially but it reacquires it quickly.  The MB4 works quite differently with CDAF and OSPDAF bodies.  I have the impression that it can work better on Panasonic bodies.

Andrew

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