Developed as a successor to the ZUIKO DIGITAL 1454mm F2.83.5, which itself earned high praise from advanced amateur and professional users, the new ZUIKO DIGITAL 1454mm F2.83.5 II boasts High-Speed Imager AF support and a circular aperture mechanism for higher imaging performance. Thanks to its support for High-Speed Imager AF, enabling users to enjoy responsive AF Live View shooting, via the camera's LCD monitor. In addition, the lens supports creative photography with a new circular aperture mechanism, excellent close-up shooting capabilities, and a full complement of other performance features.
This is the magnifying factor of a lens. Macro lenses will often be described by their “magnification factor”. A lens with a 1:1 magnification factor produces a projected image on the sensor which is the same as the subject.
The individual pieces of glass that form the overall optical construction. Most lenses have between four and eleven elements to bend the light rays to ensure a perfectly formed image appears on the light sensitive surface, such as a film or CCD. The elements are arranged in groups and may be seen in specification sheets as, for example, 6 elements in 4 groups. That configuration may have two single elements and the other four grouped in pairs.