Lensbaby, the brand known for its unusual creative optics, is teasing a new lens – and it’s the brand’s “most requested lens ...

California-based accessory maker Sandmarc has launched a new Tetraprism 72mm Lens for iPhone that adds 3x optical magnification on top of the iPhone 17 Pro's built-in tetraprism telephoto camera. The ...

Canon has patented a bunch of lenses with mirrors for full frame cameras and I’ve made some educated guesses why ...

CBSE Class 10 Science Answer Key 2026 is available here for the exam conducted today, 25th February 2026. Check ...

Abstract: The transformation optics (TO) technique has been widely applied in the volume reduction of Luneburg lens (LL) in both optical and microwave regimes. However, it is found that the focus is ...

Abstract: This communication proposes an all-metal spherical lens capable of 360° beam steering through feed switching. The proposed lens consists of multiple circular metal plates stacked to form a ...

\(power \ of \ a \ lens \ (D) = \frac{1}{focal \ length \ (m)}\) A lens has a power of -3.33 dioptres. Calculate the focal length and state what type of lens it is.

CP+, the largest annual photo trade show in the world is happening this week in Yokahama, Japan. There are plenty of new ...

A new high-quality, yet affordable-ish, standard zoom lens is on the scene with the latest 35-100mm f/2.8 lens from Tamron.

When you use DPReview links to buy products, the site may earn a commission. Photo: Mitchell Clark 7Artisans showed off several new lenses at its booth at CP+, introducing two new autofocus models ...