For those who appreciate nature but aren’t quite ready to rough it completely, Echo Bluff State Park offers the perfect middle ground. As Missouri’s newest state park (opened in 2016), it was designed ...

For a generation raised on the ethereal nature of streaming services and MP3s, it might come as a shock to budding young vinyl collectors that you’ve got ...

Learn more In turkey hunting, the optic you put on your beard buster—whether a red dot sight or a standard fixed or variable ...

Direct trauma to the eye, such as a tree branch that scrapes the cornea A foreign body that gets stuck in the eye, like dirt or sand Hard or soft contact lenses that are worn ... by examining the eye ...

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

Disability Rights Maine (DRM), the statewide protection and advocacy agency for people with disabilities, is a private, nonprofit organization independent of state government. In partnership with ...

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 ...

For example, sewing needles are thinner and sharper than knitting needles and thread is thinner than yarn, so the former needs more magnifying power than the latter. This product is packed with 5 ...

Sony stole a lead on other manufacturers in the full-frame mirrorless market, and it’s had more time to build up a wide array of companion lenses to suit every need and budget. I've always been a big ...

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 ...

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 ...