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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.
Featuring the same focal length as a popular model from Canon, the new Sigma 24-105mm lens looks as though it will be a fierce competitor to the old workhorse.
The new lens, part of Sigma's high-end "art" product line, will ship in November, but its true competitiveness won't be known until Sigma reveals its price.
With Photokina starting next week, a midrange camera important to the fate of Canon and its SLR customers appears imminent.
Pros and enthusiasts in the US can rejoice that many of Canon's SLR lenses are a notch less pricey now. Better exchange rates might deserve some of the credit.
Take the leap: There actually are occasions when using Manual can be easier than automatic.
Turn to the big A (or Av) on your camera's mode dial when you want to control background blur and don't care about much else. Here's some guidance on how to use Aperture-priority.
As full-frame SLRs spread, high-end but not top-end lenses become more important. Nikon just announced a promising new telephoto -- and it's got next-gen vibration reduction, too.
The 20-megapixel Canon EOS 6D dLSR camera boasts a full-frame sensor and Wi-Fi for sharing your snaps online.
Having trouble choosing among Canon's dSLRs? This guide can help you get started.