Recent Videos The Lomo'Instant Wide Glass features a 90mm (∼35mm equiv. in full-frame terms) F8 lens featuring multi-coated glass elements. The a fixed F22 aperture can be applied for greater depth of ...

The fit and feel of contact lenses are very nuanced, and it can take some trial and error to make sure they’re just right. You want lenses that offer precise vision ...

In this study, we developed a new method for designing progressive addition-multifocus defocused freeform lenses. We used two independent meridians and achieved a smooth gradient transition of ...

This valuable study builds on previous work by the authors by presenting a potentially key method for correcting optical aberrations in GRIN lens-based micro endoscopes used for imaging deep brain ...

The best lenses for astrophotography are arguably the most important tools in your arsenal for getting clear, sharp images of the night sky. An astro lens needs to offer a wide-angle perspective, not ...

Interchangeable lens system opens up new shooting possibilities. Better battery life. Magnetic mounting system (finally). Optional USB-C pass-through charging. Excellent Log video support.

Canon has announced that it will unveil new hybrid L-series lenses on October 30 – and I know what one of them is… When you purchase through links on our site, we may earn an affiliate commission.

Some of these lenses include the following: Rigid gas-permeable contact lenses Custom-designed astigmatism lenses by SpecialEyes Hybrid lenses (part soft, part rigid) by Synergeyes Scleral lenses ...

The random variables used in this simulation included surgically induced astigmatism, corneal marking, and lens rotation. The fixed variables were the sample of eyes with preoperative keratometry ...

Astigmatism occurs when our eye’s lens or front surface is irregular or cylindrical. Myopia occurs when the eyeball is too long, or the cornea is too steeply curved. Astigmatism, hyperopia and ...