Image sensors used in today's digital cameras place extremely high optical demands on camera lenses. The typical 4/3 or APS-C image sensor used in today's digital SLR or Compact System type cameras require lenses that are significantly sharper than those designed for 35mm film photography. Olympus Zuiko Digital lenses have sharpness up to three to four times that of most traditional film camera lenses.
When a normal film camera lens is used with a digital camera, sharpness around the edges of the image plane is typically lost and colour bleeding occurs. Olympus Zuiko Digital lenses for the OM-D, PEN and SLR systems employ special telecentric designs that focus incoming light in a straight path directly towards the image sensor even at the edges of the image plane, providing extremely high levels of sharpness and colour fidelity from the centre of the image to its edges.
Cutting-edge optics and manufacturing technology
Olympus digital lenses make use of some of the most exotic glass and lens designs, as well as world leading manufacturing techniques. As an example, the M.Zuiko 9-18mm ultrawide-angle lens for the OM-D and PEN camera series utilises two esoteric dual-sided aspherical (DSA - Dual Super Aspherical) lens element that's manufactured to super-stringent tolerances, apart from other professional-grade optics such as High Refractive (HR) and Extra-low Dispersion (ED) lenses.
A single DSA lens element improves optical performance by replacing the role of two or more spherical elements, dramatically improving light transmission (contrast) and correcting typical aberrations.
Olympus is the world's largest manufacturer of dual-aspherical lenses with exclusive manufacturing capabilities.