LA-EA4 + Sigma 400mm F5.6 APO telemacro

Started May 9, 2015 | Discussions thread
wsalopek Regular Member • Posts: 235
Re: LA-EA4 + Sigma 400mm F5.6 APO telemacro

Very old thread, but also very little info on this subject, so I thought I'd try to revive it.

My question is this:

I have a Sigma 400/5.6 Tele Macro APO HSM (Canon mount) works with an MC-11 on my A72 (soon to be upgraded to an A7R2).

What I'd like to know is did Sigma make an A-Mount version of this lens with the HSM focusing motor?  If so, perhaps I could buy that version, and with the LA-EA3 (yes, the LA-EA3), it would work a bit better than my current Canon/MC-11 setup?

Also, if that lens was not offered with an HSM motor, and for the purpose of birds and surfer photography, what is your opinion as to the focus speed of the non-HSM version?  Is it unusable?

For surfers in particular, they quite often move mostly laterally, so the focus speed really doesn't have to be all that fast.

Anyway, does anyone know if the Sony A-Mount version was ever offered in HSM?


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