Constructed by inventor Oskar Barnack and his team beginning in 1923, these “0-series” devices preceded the Leica I, the first serially-produced Leica camera that debuted in 1925.  What made this ...

Shutter speed, along with aperture value, is one of the fundamental properties of exposure: ie, how much light your camera gets exposed to. A faster shutter speed helps freeze action, whereas a slower ...

Pinhole pupilloplasty is a simple and low-cost solution to restore vision in patients with highly aberrated corneas and can ...

Both UVA and UVB rays can damage your skin, just in different ways. One causes premature aging, the other is more prone to causing sunburn, DNA damage, and skin cancer.

For over a century, surgeons performing delicate procedures have relied on stereoscopic microscopes to gain a sense of depth. These tools mimic human vision by presenting slightly different images to ...

Alnylam has said it will not proceed with a clinical trial of its RNAi drug vutrisiran in the rare eye disorder Stargardt disease – at least for now – tying its decision to President Joe Biden ...

You may think you know your color wheel, but the stories behind these rare colors around the world just might blow your mind.