Aliasing: should you be concerned about jaggies?

The term ‘aliasing’ is a general term applied to signal processing. It refers to an effect that causes different signals to become indistinguishable (or aliases of one another) when sampled. In imaging, it’s often observed as ‘jaggies’, which appear as steps along what should be a continuous line or edge. These are caused by pixel structure. Aliasing can also produce moire, when fine lines appear to ripple due to the interference.

Understanding the Micro Four Thirds System

On Tuesday, 5 August, 2008, Olympus and Panasonic jointly announced a new digital camera format. Based on the existing Four Thirds system and using the same 18.0 x 13.5 mm sensor, the new Micro Four Thirds (MFT) system – which has also been tagged the EVIL (Electronic Viewfinder Interchangeable Lens) specification – promises even smaller, lighter interchangeable-lens cameras. Technically, cameras built for the new system won’t be DSLRs. They will have no reflex mirror system and optical viewfinders will be replaced by electronic finders.

In Search Of The Ideal Digicam

While photo enthusiasts generally prefer shooting with interchangeable-lens DSLR cameras, there are times when you simply don’t want to drag all the related paraphernalia about with you. It’s too bulky, too heavy, and it singles you out as a photographer with lots of expensive gear. Wouldn’t it be nice if there was a compact digicam available as a substitute?