Product Description

This new lens does what many pros thought couldn't be done - replace the previous L-series 28-70 f/2.8 lens with something even better. Extended coverage to an ultra-wide angle 24mm makes it ideal for digital as well as film shooters, and the optics are even better than before with two Aspherical elements and a totally new UD glass element. It's now sealed and gasketed against dust and moisture, and a new processing unit makes the AF faster than ever. Zoom System - Rotating type Filter Size - 77mm Max. Diameter x Length, Weight - 3.3 x 4.9, 2.1lbs. / 83.2 x 123.5mm, 950g

Product Details

• Brand: Canon
• Model: 8014A002
• Dimensions: 5.60" h x 5.60" w x 8.00" l, 4.00 pounds

Features

• EF mount; standard zoom lens; Comes with Lens Cap E77U, Rear Lens Cap, Lens Hood EW-83F, Soft Lens Case 1219.
• Ultra-low Dispersion glass with Fluorite elements; inner focusing ring; full-time manual focus; aspherical lens
• 24-70mm focal length
• f/2.8 constant maximum aperture
• UltraSonic Motor (USM) AF actuator

Amazon.com 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

Customer Reviews

If you could only have one Canon lens, this is it.
This is my favorite Canon lens. It is sharp at both 24 and 70, and its fast F/2.8 aperture makes for excellent shots in low light, and creamy Bokeh.

The zoom is smooth except for a tiny hitch in its linearity at 24MM. I understand this is due to the shape of the cam in the zoom mechanism. The positive is that the lens doesn't "creep" like the 24-105 F/4 IS USM. Also - when you are at 24MM, the lens is fully extended; at 70 it is retracted. This makes for a large lens hood, but it blocks flare effectively.

My only con is its heavy weight, but if you are shooting L glass, weight is secondary to picture quality.

If I could only have one Canon lens, this would be it!

top notch glass!
I have used this lens with my 1D for about 6 months now and I have to say the images are truly outstanding. When I first tried it out in a shop I was amazed at the fast focus and that was using a 30D! Of course I also was amazed at the weight but you have to have that weight with glass of this quality! Its aptly nicknamed "the brick" for a reason. It is not a lightweight set-up to carry around but its not impossible to deal with. The focus with my 1D is fast and accurate, its aperture is wide enough to shoot in available light, and the images are tack sharp and vivid! It is built like a tank, and I have taken it to the base of Niagara Falls (as wet as that is) with no issue whatsoever. This is about the best all around lens you could have, i think slightly better than the 24-105 due to faster autofocus on the 24-70. When you see the results you can get with this lens, you wont mind lugging it around!!!

took a lot of time deciding on which macro ..made the right choice
WONDERFULL forget the other macro just because it is red ring. this baby is good enough for forensics.