Bethlehem, PA—OM Digital Solutions released its latest Micro Four Thirds (MFT) standard M.Zuiko Pro lenses. The M.Zuiko Digital ED 12-40mm F2.8 PRO II (24–80mm equivalent) is a standard zoom lens with f/2.8 brightness across its zoom range.
Further, the M.Zuiko Digital ED 40–150mm f/4.0 Pro (80–300mm equivalent) is a compact, lightweight telephoto zoom lens. OM Digital Solutions says it is “the world’s most compact, lightweight model, featuring a fixed maximum aperture value of f/4.0.”
Both offer weather-resistant performance with IP53 dustproof and splashproof ratings as well as freezeproof performance to 14°F. Consequently, pairing these lenses with a dustproof, splashproof, freezeproof camera body makes it possible to shoot in rain, snow and even dusty environments.
What’s more, both have a fluorine coating on the front-most lens. In addition to water, oil and dust repellence, the fluorine coating reduces friction. As a result, photographers can clean the lenses with a blower or cloth when dirty.
M.Zuiko Digital ED 12-40mm F2.8 Pro II
Successor to the MFT M.Zuiko Digital ED 12–40mm f/2.8 Pro standard zoom, this new lens offers improved image quality and weather-resistant performance.
Its 14-element, 9-group optical design uses one EDA (extra-low dispersion aspherical) lens; two aspherical lenses; one DSA (dual super aspherical) lens; two ED lenses; one HD lens; as well as two HR (high refractive index) lenses. The four aspherical lenses, including the DSA lens, are placed to achieve a compact, lightweight form. They also compensate for aberrations that occur when zooming. The result: high resolution from the center to the edges of the frame across the zoom range.
In addition, the company says its latest manufacturing techniques suppress surface scattering on aspherical lenses, reducing flares for clearer depictive performance. ZERO (Zuiko extra-low reflection optical) coating also improves resistance in backlit situations.
The lens also features a 7.9-inch closest focusing distance across its zoom range. At the wide-angle end, users can enjoy macro shooting; at the telephoto end, a 0.6x maximum image magnification compares to half-macro lenses for close-up shooting. The lens also supports focus stacking.
Moreover, a compact, lightweight focusing unit consists of two cemented lenses powered by a linear motor driving MSC (movie and still compatible) mechanism for high-speed, silent autofocus. This design also benefits video recording. 
In addition, the lens is capable of 50-fps (AF/AE tracking) sequential shooting when paired with the OM System OM-1 camera. Finally, photographers can pull the focus ring toward them to instantly switch to manual focus and use the L-Fn button to control the lens with a single finger.
The M.Zuiko Digital ED 12–40mm f/2.8 PRO II, with hood, is available with an SRP of $999.99.
M.Zuiko Digital ED 40–150mm f/4.0 Pro
This lens uses the same structure as the M.Zuiko Digital ED 40–150mm f/2.8 Pro. It incorporates a 15-element, 9-group optical design with two ED lenses, one super ED lens, one HR lens and two aspherical lenses.
The layout of the special lenses helps to suppress chromatic aberration for high-resolution imaging. The lens also features ZERO coating to eliminate ghosts and flares. Like the above lens, it utilizes the performance of the camera body, even in high-res shot mode.
Furthermore, its compact, lightweight form is also made possible with an inner zoom system. The system keeps the lens’s length the same across the entire focal length as well as suppresses center-of-gravity changes while zooming.
It measures approximately 4.9 inches when in use and weighs approximately 13.5 ounces. Moreover, it has a mechanism that makes it possible to retract and store the lens simply by turning the zoom ring.
In addition, it features a 28-inch closest focusing distance across the entire zoom range. At the telephoto end, close-up shooting is possible up to a 0.41x maximum magnification. Focus stacking is also supported; it captures multiple shots at different focal positions and automatically composites the shot.
The M.Zuiko Digital ED 40–150mm f/4.0 Pro lens, with hood and cap, retails for $899.99.
