Sony a77 vs a99 vs 550alpha with a 70-200 2.8 lens

Started Apr 21, 2013 | Questions thread
compositor20
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Re: The Sigma 70-200mm f2.8 hsm II
In reply to lim yau tong, Apr 23, 2013

I have both sony a57 and sony a77 and its true that sony a57 is a little better at iso 6400 and has iso 3200 in video mode, but a77 has micro focus adjustment which is worthy since sony low end models have tendency to backfocus on the center point (the most accurate and sensitive in low light) because the AF sensor is missaligned), the better EVF, the autofocus red light assist, the 3 way articulated screen and weather sealing, the joystick and specially the 2 mode dials led me to buy it.

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