Whether you're a hobbyist or a professional, we found the best welding helmet for your needs and budget. The best welding ...

Two Franklin County Technical School seniors recently took a deep dive into their underwater welding education.

\(power \ of \ a \ lens \ (D) = \frac{1}{focal \ length \ (m)}\) 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 ...

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 ...

Jeremy Agbonifo (Lens) left footed shot from the right side of the six yard box is close, but misses to the right. Assisted by Anass Zaroury with a cross. Attempt missed. M'Bala Nzola (Lens ...

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 ...

Experts warn that those old reliable welding goggles you've got sitting on a shelf likely aren't capable of adequately withstanding the sun's powerful rays and protecting your vulnerable eyes.