[Dan K] had just such a lens from Sigma, but wanted to get it working fully with a camera using the Canon EF lens fitting. Hacking ensued. The lens in question was a Sigma 15-30mm f/3.5-4.5 EX DG ...

Weight 200g / 7.1 oz. Notes Image Stabilization; EF-S lens mount, exclusively for bodies with APS-C sensors. A lens hood (EW-60C) and lens case (LP814) are available as optional accessories.

Three of the four RF lenses presented belong to Canon's so-called hybrid L models ... been significantly improved compared to its older EF counterpart, which is particularly noticeable in the ...

Canon is set to expand its RF-mount lens line up with three new 'hybrid' lenses for its mirrorless cameras. In a teaser, the camera giant posted a picture (above) of its two existing hybrid lenses ...

The fit and feel of contact lenses are very nuanced, and it can take some trial and error to make sure they’re just right. You want lenses that offer precise vision ...

iPhone lenses. He loves photography and camera gear, and previously worked as an editor for Canon EMEA's editorial site. He has a wealth of experience testing and using photography gear of all types.

Skip to trip to the doctor's office and get contact lenses delivered straight to your door with the best places to buy contacts online. Nasha is a Managing Editor for CNET, overseeing our sleep ...

In a ray diagram, a concave lens is drawn as a vertical line with inward facing arrows to indicate the shape of the lens.

Both prescription sunglasses and transition lenses can correct your vision while blocking rays. Depending on your needs, one ...

YOU HEARD CHRIS TALK ABOUT THAT EF THREE TORNADO. THIS IS WHERE IT HIT TAKE JUST FOR. THIS IS SUCH A GOOD EXAMPLE OF WHAT HAPPENED. THIS TRUCK COMPLETELY JUST DAMAGED, FLIPPED UPSIDE DOWN.

The tornado was rated as an EF-3 with estimated peak wind speeds of 140 mph. NWS personnel based the rating on what happened in a single neighborhood that was among the hardest hit. The NWS noted ...