The most commonly used and the earliest example of an achromatic lens is the achromatic doublet. An achromatic doublet is made from a pair of glasses, of which one is typically a concave and another ...

Physicists at ETH Zurich have developed a lens that can transform infrared light into visible light by halving the wavelength ...

Laowa calls that versatility “one-of-a-kind.” The lens mixes that versatility with a fast aperture, f/2.8 on the photo version and T/2.9 on the cinema lens. That gives the lens some capability for ...

Sigma has announced a series of super-bright cinema primes, along with rebodied versions of its fast photo zooms.

Sigma has just unveiled a significant new lens range for filmmakers – the Aizu Prime Cine Line. A comprehensive suite of large-format cinema lenses featuring a consistent, ultra-fast T1.3 aperture ...

Ever wonder how NASA captures stunning images from deep space probes? Interplanetary scientist John Spencer takes us behind ...

Pentacam and corneal topography were more sensitive to tear film abnormalities when measuring the curvature of the cornea in ...

Ophthalmic lenses are optical devices employed to correct vision deficiencies, enhance visual and protect the eyes. They are commonly prescribed for refractive errors such as myopia (near-sightedness) ...

This is why many are turning to previous year papers and sample PDFs to not just study but also simulate the real exam experience. In this article, we bring you a curated collection of Union Bank SO ...