With a whopping total of eight official lens choices (and two wide angle converters), saying that Sony's NEX cameras could use a few more options in the decent glass category would be putting it lightly. Thankfully, Tamron today announced its latest zoom lens, the BO11 18-20MM F/3.5-6.3 DI III VC, which is made specifically for E-mount shooters. The BO11 weighs in at just over a pound and features a built-in a stepping autofoc
