Wide Zoom (Four Thirds System)

7-14mm f4
(14-28mm: 35mm equivalent)

OLYMPUS : ZUIKO DIGITAL ED
7-14mm f4
Take it to the limit with this ultra-wide-angle zoom lens. Designed to capture the most mind-boggling perspectives while maintaining the highest picture quality, this lens incorporates large-aperture lens elements with aspherical surfaces on both sides to minimize distortion.
Extensive use of aspherical ED (Extra-low Dispersion) and super ED lens elements completely eliminates transverse chromatic aberration. Inner focusing and floating mechanisms enable close-up shooting as close as 10cm from the front lens across the entire zoom range.

Lens construction = 18 elements in 12 groups Closest focusing distance = 0.25m / 9.84 in. Maximum image magnification = 0.11x (0.22x:35mm equivalent) Filter size = none Dimensions = f86.5 x 119.5mm / f3.41 x 4.70 in. Weight = 780g / 27.5 oz. Accessories = Hood (built-in), Case

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11-22mm f2.8-3.5
(22-44mm: 35mm equivalent)

OLYMPUS : ZUIKO DIGITAL
11-22mm f2.8-3.5

No lightweight when it comes to quality, this compact, lightweight wide-angle zoom lens is perfect for capturing the all-round feeling of the great outdoors or for making a small room seem more spacious.
Featuring two aspherical lens elements, this lens offers outstanding imaging performance with high brightness, contrast, and sharpness throughout the zoom range. With its lightweight design and excellent mobility, this lens is ideal for a wide range of shooting situations.

Lens construction = 12 elements in 10 groups Closest focusing distance = 0.28m / 11.02 in. Maximum image magnification = 0.13x (0.26x:35mm equivalent) Filter size = 72mm Dimensions = f75 x 92.5mm / f2.95 x 3.64 in. Weight = 485g / 17.1 oz. Accessories = Hood, Case

http://www.four-thirds.org