Olympus Zuiko MACRO 80mm f/4.0  Specifications Features

Specifications | Features

Features

The OM-System interchangeable lenses range from 8mm fisheye to 1000mm telephoto and also include a variety of unique and special purpose lenses.
	ZUIKO lenses, manufactured by Olympus, have long enjoyed a world-wide reputation for excellence. Building upon this accumulated experience and employing the most up-to-date technologies such as computerized design, image evaluating simulation based on Modulation Transfer Function, etc., the task force of Olympus engineers has produced a new generation of superb lenses.
The lenses which emphasize close distance ability utilize a group of correcting elements that automatically compensate for aberrations created at close distances, maintaining unusually high performance. Careful attention was paid to color balance, including special coatings applied to certain lens surfaces. Efforts were concentrated on shortening the overall length to achieve the worlds most compact and lightweight lens designs, permitting handheld photography even with super telephotos.
	The Olympus OM-System was developed to provide both the advanced photographer and the scientist with the world's most versatile and sophisticated 35mm photographic system.
The extensive experience of Olympus as a world-wide supplier of precision microscopes has enabled them to design macro lenses that deliver high resolution and contrast even at extremely high magnification.
	Although an SLR with a standard lens can be used with good results for general close-up photography, one lens can never be expected to satisfy all the needs of the expert in the field. Usually lenses are designed to deliver best performance at specific focusing distances. Because of this, the lens quality inevitably falls off as the distance of the subject changes. Most lenses are optimized for best performance at infinity, but in practice, for example, a standard lens performs well up to distances as close as 1m from the film plane. However , as the focusing distance becomes closer, the magnification of the image increases to such a great extent that it becomes increasingly difficult for the lens to deliver high resolution.
Conventional macro lenses are designed to deliver their best performance at magnifications up to 1/10 life size and can be used with good results for general close-up photography. As the magnification increases to life size or beyond, the lens performance drops sharply. To overcome this problem, Olympus created four special macro lenses, each designed specifically for use with either the Telescopic Auto Tube 65-116 or the Auto Bellows. The 1:1 Macro 80mm f/4.0 is optimized to deliver highest possible resolution at life size magnification.
	Designed specially for reproductions around 1:1 (72mm x 48mm ~ 18mm x 12mm), the 80mm macro features full automatic aperture coupling (with Telescopic Auto Tube 65-116; for auto aperture with Auto Bellows with Double Cable Release). Built-in focusing ring allows fine adjustment after magnification setting. With the 65-116, the Close-up Lens 80mm Macro is required for images from 1X to 2X life size.
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