THE OM-1 MARK II was accompanied by two new lenses; one a wide-angle zoom, the other a supertelephoto zoom. The M.Zuiko Digital ED 9-18mm f/4.0-5.6 II is an OM System rebadge of the previous Olympus model with some small cosmetic changes. The effective focal length is 18-36mm and the lens is the smallest of the OM System ultra-wide zooms, weighing at a mere 154 grams. The optical construction employs 12 elements in eight groups which includes two ‘Dual-Sided Aspherical’ (DSA) types and two normal aspherical types, enabling the very compact design. The minimum focusing distance is 25 centimetres across the zooming range. There's a new petal-shaped lens hood which can be fitted to the lens in reverse when not in use.
The M.Zuiko Digital ED 150-600mm f/5.0-6.3 IS gives an effective focal range of 300-1200mm and, while it's a fairly substantial lens, it can be used handheld. This is assisted by a built-in optical stabiliser
