Most consumer point and shoot digital cameras say something like, "5x optical zoom," or "9x optical zoom" on the box. But, when you move up to micro-4/3s and SLRs, you lose that. It makes sense - the ...

The magnification (or power) you will see through a given optical system depends on the telescope and the eyepiece. The simple formula is: Magnification = Focal length of telescope ÷ focal length of ...

Age-related macular degeneration (AMD) is the leading cause of blindness among older adults in the western world. Unfortunately, conventional optical aids provide little help for a retina which has ...

Macro lenses provide a unique ability to magnify tiny details to their true-to-life size, or at times even larger than life. They can reveal details our eyes may not be able to pick up on, allowing us ...

Early this morning Olympus announced the arrival of its newest lens: the M.Zuiko Digital ED 12-200mm f/3.5-6.3 (the 35mm equivalent to a 24-400mm). The lens is compatible with the Olympus OM-D camera ...

A periscope camera lens is a lens assembly that uses prisms, mirrors, or a combination of them to redirect light before it reaches the camera sensor. In doing so, it magnifies the image more so than ...

California-based accessory maker Sandmarc has launched a new Tetraprism 72mm Lens for iPhone that adds 3x optical ...