The general-purpose zoom lens costs about $100 more than Canon's equivalent, but Sigma thinks its image quality means the lens is worth the extra money.
This 1080p projector has features normally found in pricier models, including horizontal/vertical lens shift and dual HDMI inputs.
If two dimensions just aren't enough, you and five friends can gather around this top-rated TV for 3D movie-night goodness.
New desktops in the Pavilion and Envy and lines cover everything from basic schoolwork to 4K video.
The Microsoft Surface Pro will start at $899 (£560) in the US when it arrives in the new year. Expect a hefty markup for the UK.
Microsoft's upcoming full Windows 8 Pro tablet will cost more than the Windows RT Surface, but maybe not as much as we first expected.
CNET Labs puts four computers with Intel's much-hyped Core M processor to the test, including Apple's new 12-inch MacBook.
Some of our favorite TVs from last year were Vizio's M series, and now they're back with 4K resolution for inexpensive prices. The company also said its Reference series sets, first announced 15 months ago, would be released sometime in 2015.
A new bicycle helmet design aims to take the awkwardness out of carrying it around when you're not under pedal power.
Can a watch be the hub of your universe? Neptune Suite, which launched on Indiegogo, thinks so.