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 ...

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 ...

How to choose the right lens Most standard zoom lenses give a maximum magnification factor of about 0.3x. Zoom lenses, and even some prime lenses with a ‘macro’ badge, give a greater magnification of ...

The iPhone 6 and iPhone 6 Plus, are capable of taking superb photos straight out of the box and the fixed lens gives you great quality images in most situations. However, there’s only so much you can ...