วันพุธที่ 18 มกราคม พ.ศ. 2555

Canon EF 24-70mm f/2.8L USM Standard Zoom Lens

Product Description


Deals Can Ef 24 70mm F28l Usm Standard Zoom Lens, Looxcie Lx2 Wearable Video Cam , S Y Bloggie Touch Camera 4 Hour , Pelican 1620 Case , Think Tank Street Walker Hard Drive , Product Description The Canon EF 24-70mm standard zoom lens does what many pros thought couldn't be done--it replaces the L-series 28-70mm f/2.8 lens with something even better. The lens offers extended coverage to an ultra-wide-angle 24mm, making it ideal for digital as well as film shooters. The new processing unit, meanwhile, makes the autofocus (AF) faster than ever. And thanks to the two aspherical elements and a totally new UD glass element, the optics are far superior to the earlier lens. Sealed and gasketed against dust and moisture, the EF 24-70mm lens carries a one-year warranty.
  • Focal length: 24-70mm
  • Maximum aperture: 1:2.8
  • Lens construction: 16 elements in 13 groups
  • Diagonal angle of view: 74 to 29 degrees
  • Focus adjustment: Front-focusing method
  • Closest focusing distance: 1.25 feet
  • Zoom system: Rotating type
  • Filter size: 77mm
  • Dimensions: 3.3 inches in diameter, 4.9 inches long
  • Weight: 2.1 pounds



This review is from: Canon EF 24-70mm f/2.8L USM Standard Zoom Lens for Canon SLR Cameras (Camera)
In April of 2005 I bought the Canon 20D with the 18-55 kit lens, my first SLR camera. After getting used to properly taking pictures with the camera I bought the 24-70 as a lens upgrade - and what an upgrade it is. All the positive stuff you read about this lens is true ... the color, the contrast, the sharpness, it's unbelievable how well this lens performs compared to a consumer grade lens.

A lot of reviews complain that the 24-70 is too heavy, and it is heavy for a lens, but it's not "too" heavy to carry around all day. I also regularly use my Canon 70-200 f/2.8 IS - that's a lens that is maybe too heavy for regular use but it's also A LOT bigger than the 24-70.

A note about debates you'll find everywhere comparing the 24-70 to the new Canon 24-105 f/4 ... These lenses are not built to be an either-or, they are different lenses targeted at different uses. The main complaint I found online about the 24-70 is that it lacks Image Stabilization, a complaint I eventually dismissed as irrelevant. I've taken thousands of photographs with this lens and not once did I miss a shot because the lens didn't have IS. Simply put, this lens isn't long enough to require IS.

If you're new to SLR photography be careful when reading product reviews, especially those in discussion forums. Just like any other hobby (like computers), people who are in to photography have very strong opinions and tend to have to have the latest and greatest thing that just came out. If you're thinking of purchasing a lens this expensive and are unsure if you should get one or the other, try renting one for a few days.

Another reviewer on this page commented on using this lens with the built-in flash on a 10D. If you're buying an $1,100 lens you should know that Canon didn't design it specifically so you could use it with the built-in flash. They probably assumed that if you could spend a grand plus on a lens that you could also step-up and buy a real flash. This reviewer gave the lens a 3/5 rating because his camera body didn't have the right flash, something that has nothing to do with the lens at all.

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