One of the most interesting features of this lens is the flexibility of its focusing system. While this is a so-called “focus-by-wire” lens – which means movement of the lenses focusing elements are controlled by an electric autofocus motor instead of a mechanical linkage – it offers two distinct manual focusing options. Choosing is as easy as moving the snap focus ring that activates the lens’s Manual Focus Clutch mechanism.
 

One of this lens’s most interesting features is the unique-to-Olympus Movie & Still Compatible mechanism, or MSC. This technology provides amazingly fast – and nearly silent – autofocus operation. You’ll really notice the benefit when you play back your HD video and the only thing you hear is the ambient background noise in the scene you were filming; what you won’t hear is the sound of the lens moving as it changes focus. This lens is perfect for tracking action.
 
 

The 12mm wide-angle is a great choice for shooting portraits, low-light landscapes and interior architecture. It’s also a lens you can grow with; as your skills improve you can use the manual focus options to take control and set up your shots just the way you want them.
 

You can accessorize with a special lens cap and lens hood, great for avoiding lens flares that can ruin an otherwise perfect picture.