Two new ultra-wide lenses will be added to the RF-mount portfolio: the RF 7-14mm f/2.8-3.5L Fisheye STM and RF 14mm f/1.4L ...

Fast 14mm prime should appeal to astrophotographers, and there’s a fisheye zoom, too The post Two new ultra-wide lenses from ...

From astro and sport to VR video and stills, Canon's RF 7-14mm f/2.8-3.5L Fisheye STM might have the most creative potential ...

ABSTRACT: With cataract surgery entering the era of refractive cataract surgery, people’s requirements for visual quality are getting higher and higher. From “visible” to “clear” and then to ...

The Voigtländer Portrait Helier 75mm f/1.8 is announced, promising to achieve a variety of stunning bokeh effects in-camera When you purchase through links on our site, we may earn an affiliate ...

"Knock on wood, it can go another 10 years," former astronaut John Grunsfeld says. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. John Grunsfeld ...

Aspheric lenses have at least one surface that is not a true sphere. The aspheric profile used is frequently a conic surface of revolution about the lens axis, matched in design to the shape of the ...

Rich Halley is a tenor saxophonist and composer based in Portland, Oregon. He is known for his fiery playing and imaginative compositions. Rich has released 26 critically acclaimed recordings as a ...

Please provide your email address to receive an email when new articles are posted on . Pterygium is a degenerative condition of the ocular surface. The growth is known to cause issues such as visual ...

Considering patients' spherical aberrations may allow a better contact lens-wearing experience for patients with presbyopia. Wearing multifocal contact lenses alters spherical aberration and visual ...