Power Optical Image Stabilizer. A technology used by Panasonic in its Lumix range of cameras to prevent image blur resulting from hand shake. This is said to provide almost twice the degree of correction as the company's previous Mega O.I.S system.
On sale: 14th Feb
We introduce the new and improved look of What Digital Camera with 102 camera reviews, while in a high-resolution battle, the Sony A7R and Nikon D800E go head to head, plus we've put together an essential guide to Wi-fi.
Which of the new cameras announced so far this year are you most excited about?
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