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

At Mobile World Congress 2025, Xiaomi showcased a Modular Optical System (MOS) that magnetically attaches a lens to a custom Xiaomi 15. It's like a Moto Mod, but with a full-fledged, working ...

PARIS/HENIN-BEAUMONT, April 1 (Reuters) - A Paris court said on Tuesday three appeals have been filed so far in the case against the far-right National Rally party that saw leader Marine Le Pen ...

Learn more› By Erin Roberts We will soon update this guide to focus entirely on Canon RF-mount mirrorless lenses, following the structure of our Nikon Z-mount lens guide. Keep an eye out for new ...

Donald Trump authorizes U.S. military to take control of land on southern border Terry Bradshaw Helped Trapped Passengers Escape Plane at Pittsburgh Airport New video of unidentified flying object ...

Canon has announced the RF 20mm F1.4 L VCM ultra-wide prime as part of its L-series "hybrid" prime lenses designed for both stills and video work. Recent Videos The 20mm F1.4 shares many ...

To see if $50 could bridge this gap, I recently bought an anamorphic lens for my smartphone, and took it for a spin in both London and Australia. I've used anamorphic lenses on actual video ...

NAIVASHA, Kenya, Mar 21 – With the 2025 WRC Safari Rally seeing the the introduction of two stages, Camp Moran and Mzabibu, The KCB hospitality tent in Kedong livened up Day 2 where rally enthusiasts ...

While 22k of 100 grammes of gold will cost Rs 8,25,000 in the cities today compared to Rs 8,21,000 yesterday, representing a price bump of Rs 4,000, the prices of 22k of 10 grammes of gold in ...

Back in 2009, when the Golden State legend was a sinewy, sharpshooting prospect from Davidson who never could have imagined draining 4,000 3-pointers in his NBA life, the Kings were one of five ...

Ethereum gained over 4% and traded higher than $4,000. XRP, Solana, Cardano ... Furthermore, the Toncoin crypto recorded new daily highs amid the rally recently.