Introduction With their larger imaging circle we’re all accustomed to thinking how full-frame lenses can be used on cameras with smaller APS-C size sensors, providing the mount is compatible, so it comes as little surprise to see Sigma apply that principle to their DN series lenses.These lenses are designed for mirrorless cameras available with mounts to fit either Sony NEX or the smaller MFT cameras from Panasonic and Olympus. On those cameras the 30mm (please note, we’ve already reviewed this lens with a MFT mount here) is the equivalent to a short tele (60mm) though on
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