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The Zoom Lens EF24-70mm f/2.8L USM was developed as the successor to the EF28-70mm f/2.8L USM lens released in November 1993. Featuring a new optical system design, the new zoom lens delivers an expanded zoom range with a 24 mm wide-angle focal length, ideally suiting it to digital image sizes, while also maintaining or improving on the outstanding image quality of the superseded model.Moreover, the power of the focusing lens group has been increased to allow a minimum focusing distance of just 0.38 meters, the shortest in its class at the time, throughout the entire zoom range. The new EF24-70mm f/2.8L USM also features a circular diaphragm, to give better background blur, and utilizes only lead-free glass optics in consideration of the environment.
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Technical Details
- 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
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By Thomas W. Edwards
After reading the mixed reviews, I decided to purchase this lens. I needed the lens for a few upcoming events, so it went to work right away. After the events, I viewed the images on a computer and was very disappointed. Close images (under 10 feet) were sharp, while images between 10 feet and infinity were almost out of focus. I would get the focus confirmation in the viewfinder, so everything appeared to be fine.
After some test shooting, I realized that if I manually focused the lens, the pictures were tack sharp. Luckily, the Live View with the 40D really helped pinpoint this issue as you could enlarge the view and see the focus error. I contacted Canon and they sent me a mailing label so the unit could be calibrated. After 7 days, I have the lens back and it is right on the money now.
I am now very happy with this lens and thumbs up to Canon for great service.
By M. Keel
I'm going to put two sections, positive and negative and a description of both. Negatives will come first since everyone is always harping on how great it is-- I'm sure if your here you may want to know the bad things.
Negatives:
Weight: It is gigantic and weighs a lot. I'm a big lady and after using this lens on my 5D Mark II for 9 hours my hand and wrist had taken a beating. I also work with an attatched flash as well so that adds to the weight but on previous fixed focal length lenses I never had soreness. I use a wrist gaurd now to help support the weight of the camera when I am doing my wedding photography. While the weight is difficult, it is easily remedied by doing as I have done-- and I am grateful for the weight. The build quality in this lens is superior then any lens I have seen yet, and by the weight alone you can feel the quality in it. A heavier weight is a fair trade off, I think, to providing my clients better images.
Auto Focus: This is something that I have a honest complaint. I usually like to auto focus my work, but on some occassions I like to rely on the camera's ability to auto focus so that I can be sure to capture an image quickly-- this lens does not work that way. I have found, personally, that the auto focus is incredibly slow and often back focuses (focuses on the background and not the subject). It is absolutely vital for this function to work-- and it is practically useless in very low light. You will be standing there for 30 minutes waiting for the camera to lock focus-- this is not a problem I have with my other lenses and it disturbs me that after spending $1300 that I cannot have my cake and eat it too-- or that the auto focus in my camera could be so slow. I'll have to play with it some more to make my final decision but for now I'll be relying on my natural ability to manually focus (which in 95% of cases is better)
No IS: Everyone is harping on it, so I won't go far into it. It's really helpful to have the IS when you are trying to handhold your equipment. Just somethng that would have been nice.
Positives:
Image Sharpness: When focusing manually, looks absolutely STUNNING.... if you get it right. This is not something that you can just pick up and do-- you have to be very precise with your focussing otherwise you will have a soft picture or it will just be out of focus. I have had no luck with the Auto-focus aspect of this camera (unless it is in bright light) and to really achieve the beauty that this lens can create-- you have to be good yourself. This lens will not make you a good photographer-- it demands knowledge and expierence to back up the user while shooting.
Color Saturation: Although some people say that this lens is slightly less warm then other lens-- I have found that, when the lens hood is applied (I shoot with it 98% of the time) the color saturation is gorgeous as well. I find very minimal times, except in bright light, where contrast and saturation need to be editted, it is just that good.
Mechanics and Ease of Use: I love the larger focussing ring-- it is so wonderful when manually focusing.
And that is all the positives I am going to report on. There are so many great things to say about this lens that it's hard to write them all down. Just know that this lens requires skill to use it properly. Spending a ton of money on your lenses and bodies will only produce the same quality images that you are capable to produce. It does not make you better but it may make you work to BE better.
Hope that helps :-)
By Jack Blanke
I have not used another lens since I received the 24-70mm f/2.8. It is a permanent fixture on my 40D and I have not found it to be the over-bearing heavy weight that I read about in so many reviews. I have found it to be a great indoor low light lens that has freed me from my flash much of the time and an amazingly clear and sharp optical instrument that embraces and enhances outdoor colors and hues. I have not found the wide end of the lens (24mm) to be overly restrictive indoors, in spite of the fact that I use it with a crop camera. You'll get lots of "wow" responses from this lens......its build quality and attention to detail are readily evident. I'd recommend this lens without hesitation.
By Yu Gan (Berkeley, CA)
Very sharp even down to F/2.8.
Solid build
Very very attractive color.
By Beverly Christ (Ravenel, SC)
I had been looking for a fast lens in which to
use for photojournalism. I wanted a lens that
could handle low light situations. I rented
different lenses to see which would produce the
clarity, the color, etc. I was torn between
the Canon EF 24mm f 1.4L USM and the 24-70mm f2.8L.
I decided I could get better use of the 24-70mm
since it was zoom and it worked well in low lights.
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Buy Canon EF 24-70mm f/2.8L USM Standard Zoom Lens for Canon SLR Cameras Now
