Here we are comparing two cameras with different body types: Olympus E-M10 IV, which was introduced in August 2020 is a Entry-Level Mirrorless camera with a 20.0MP Four Thirds sensor whereas Sony A57, which was introduced in September 2012 is a Entry-Level DSLR camera with a 16.0MP APS-C sensor. As you can see, A57 is 8 years older than E-M10 IV. Let's see if this age difference between two cameras makes a big difference.
Despite some fundamental differences of these two body types, Mirrorless cameras are becoming serious alternatives to DSLR cameras thanks to their size/weight advantages and recent improvements in their focus speeds , which makes this comparison even more interesting.
Here is a brief look at the main features of Olympus E-M10 IV and Sony A57 before getting into our more detailed comparison.
Let's read on the following sections in order to better understand in detail how Olympus E-M10 IV and Sony A57 compares and hopefully end up with enough arguments to decide which one is better for you.
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