Alongside the NEX-C3, Sony has launched a 30mm F3.5 Macro lens. The 30mm F3.5 Macro (or SEL30M35, in Sony's own slightly opaque nomenclature) becomes the fourth lens for the E system. It's a tiny, internal focusing macro capable of true 1:1 magnification, and is finished in the same handsome metal-barreled finish as the other E-mount optics. Sony claims it's the lightest macro lens for interchangeable cameras, and at a mere 55mm long and 62mm in diameter it's even smaller than Panasonic's 45mm F2.8 for Micro Four Thirds. To add to the attraction it's also distinctly inexpensive.
It's not all great news, though. The relatively short focal length means that the working distance from the front of the lens to the subject at 1:1 is less than an inch, and while Sony's press release makes this out to be a good thing and ideal for shooting flowers and insects, the truth is that you'll have trouble lighting those flowers with the lens so close. Not to mention the fact that any insects will get scared off and either run or fly away, depending on flavor. That's just the price you have to pay for the lens not costing very much.
The somewhat modest maximum aperture and lack of stabilization also limits the lens's utility beyond macro work – it's unlikely to be fast enough for shooting in just natural light indoors, for example.