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

Any serious photographer should have a 50mm lens in their kit bag. Also known as a 'standard' prime or a 'nifty fifty,' these lenses capture a perspective that's roughly equivalent to the field of ...

Nikon’s Z-series lens line-up has never been healthier. If you’re shooting with one of the best Nikon cameras, you’ll want to pair it with the best glass you can buy. That’s exactly what ...

The 60MP sensor in the SL3 delivers not just fabulous detail rendition but exceptional overall image quality, so if you buy one of these cameras you’ll need the best possible lenses to go with it. We ...

Days after a Nepalese female student allegedly died by suicide at an Odisha university and the college administration ordered Nepali students to vacate the hostel, 159 students have returned to ...

Instead of manually copying and pasting text or performing a separate search, Google Lens enables you to highlight, draw over, or tap on any part of your screen to initiate a search instantly.

including more than 3.9 million in the 130-139 age range, more than 3.5 million in the 140-149 range and more than 1.3 million in the 150-159 range.

Presidents' Day is here and Best Buy's laptop deals are still incredibly strong. Most of the offers that launched last week are still in stock, but you've only got until the end of the day to ...

From the Composer Pro II to the Sweet 50, these are the best housing and lens options. Leica, Panasonic, and Sigma full-frame mirrorless cameras share a common lens system, the L-mount.

Lenses is the developer tooling that acts as a flexible, intelligent operating layer over any streaming technologies a business chooses (using the Apache Kafka API). This gives engineers one screen to ...