HOWTO: Downgrading MC-11 to 1.05 firmware

Started 8 months ago | Discussions thread
Potemkin_Photo Senior Member • Posts: 1,919
Re: Ver. 1.12 hurt my MC-11

Potemkin_Photo wrote:

Potemkin_Photo wrote:

sjazz wrote:

Bringing back this thread as I updated my MC-11 to Ver. 1.12 and I can't focus with my Sigma Art lenses.

I tried to downgrade the MC-11 but it seems that the proxy is not working, OP any chance to revive it?

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I upgraded the firmware of the lenses and everything works now, the 135mm much better than the 24-105


May we would upload the 1.05 firmware to a site where it can be downloaded by all.

Very unpredictable how the mc11 works.  Using 1.05.

Initially ef lenses just didn't work on a6000. Now ef 40mm speed and eye af are not bad.  24 105 focus takes time but is spot on.

A little disappointed with sigma art 35 af speed as it is definitely not on par with native lens af speeds.  I would've expected sigma adapter for sigma lenses to at least allow native af speed.

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