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 ...

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 ...

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 ...

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 ...

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