Sony NEX-6 kit owners have been shooting with it for weeks, but the company's 16-50mm retractable zoom lens isn't quite yet available as a standalone purchase. That's set to change early next year -- reps have told us that the lens should hit stores by mid-February, while the optic's own product page now lists an estimated ship date of February 3rd. The lens, which ships with the NEX-6 for a $150 premium (compared to the $850 body-only price), delivers a focal range similar to that of Sony's larger 18-55mm optic, matching that version's f/3.5-5.6 apertu
