March 10, 2009

A New Micro FourThirds Digital Interchangeable Lens LUMIX G VARIO HD 14-140mm/F4.0-5.8 ASPH./MEGA O.I.S. With Silent Design for HD Movie Recording


March 3, 2009: Panasonic today unveiled a standard interchangeable zoom lens called the LUMIX G VARIO HD 14-140mm/F4.0-5.8 ASPH./MEGA O.I.S. as a new member of the LUMIX G Micro System. The new LUMIX G lens incorporates an inner focus direct-drive linear motor for focusing, which enables smooth, silent operation of its fast and accurate contrast AF system, for use in both photo and movie recording. Adopting the Micro Four Thirds System standard, the new lens offers a wide and long zoom range of 14-140mm (35mm camera equivalent: 28-280mm) to suit a large variety of shooting situations, from scenery to portraits or telephoto shots, in a surprisingly compact and lightweight body.

The new lens system uses four aspherical lenses and two ED lenses to achieve dramatic downsizing despite its powerful 10x optical zoom, while minimizing distortion and chromatic aberration. Panasonic's Mega O.I.S. (Optical Image Stabilizer) suppresses the blurring that is commonly caused by hand-shake, making it easy to shoot clear shots even at telephoto range or in dimly lit places without using a tripod.

When mounted on the DMC-GH1 Lumix G Micro System Camera, the new lens allows use of the advanced contrast AF system, which includes a Face Recognition function, for more convenient, more enjoyable shooting. Seven blades give the aperture a rounded shape that produces an attractively smooth effect in out-of-focus areas when shooting at larger aperture settings.

The new LUMIX G VARIO HD 14-140mm/F4.0-5.8 ASPH./MEGA O.I.S. lens also features a highly reliable metal mount, and uses multi-coated lens elements that minimise ghosts and flare to further enhance its optical performance.

March 6, 2009

Know The MetaLLurgy


A History of Metallurgy

From coins to weapons, tools to decorations, metals have played an important role in everyday life from the earliest known times to here today. Metallurgy, or the science that deals with procedures used in extracting metals from their ores, purifying and alloying metals, and creating useful objects from metals, has played a pivotal role in every known civilization. They supply a form of steady trade, the materials needed to make sturdy tools, and the ability to make powerful weapons. Different metals have been used and favored at different times for varying reasons, and it is the purpose of this paper to explore some of those reasons and get a better understands of what metallurgy has done for varying nations.


The process of metallurgy is quite simple. First the ore (the valuable metals found within a rock face) is extracted from the rock face using varying methods of mining. After this, the ore is beaten, crushed and grinded to remove any non-metallic material. Then the ore is placed in a container and stuck in a hot furnace where it is exposed to extreme heat, causing the ore to melt. Once the ore melts, it is then used to form coins, tools, weapons and all other sorts of objects.

January 9, 2009

What is metallurgy?


Metallurgy is a domain of materials science that studies the physical and chemical behavior of metallic elements, their intermetallic compounds, and their mixtures, which are called alloys. It is also the technology of metals: the way in which science is applied to their practical use. Metallurgy is commonly used in the craft of metalworking.