20 Most Recent Canon 24-70mm f/2.8 Lens Questions & Answers

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I need to take sharp photos with my new 24-70mm,

Put it in Av mode and select f8
8/6/2014 7:59:13 PM • Canon 24-70mm... • Answered on Aug 06, 2014
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The aperture/ shutter speed knob

Return it for a repair under warranty
8/6/2014 7:33:43 PM • Canon 24-70mm... • Answered on Aug 06, 2014
manual
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Focus out problem in canon 50d while using 24-70mm lens?

If by a "normal" lens, you mean a 35mm or 50mm fixed focal length - often called "prime" lens, that is to be expected. The additional and internal rotating optical elements all contribute to loss of clarity, color loss, and increased chromatic aberration that starts to become noticeable when compared to use of a prime lens. It's a trade off; less number of lenses to carry and lower cost when using wide angle zoom lenses as opposed to a prime lens for even just a few of the focal lengths offered by the wide angle zoom types.You can minimize the unwanted effects by staying away from both the extreme wide angle and zoom focal lengths as well as the widest aperture settings. If you can stay 2 or 3 stops smaller from wide open, you can limit these destractions from your pictures. This is recommended advice for nearly every lens: Keep away from the extremes.Good luck!
1/12/2012 7:33:35 PM • Canon 24-70mm... • Answered on Jan 12, 2012
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Exposure

What exactly is it that you need?
12/17/2010 3:47:55 AM • Canon 24-70mm... • Answered on Dec 17, 2010
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What is the middle wheel (says macro) on my lens

If it says macro, that means focusing at a close-up range, maybe just a couple inches or centimeters- your lens specifications will tell you exact distances.
4/7/2010 6:38:42 AM • Canon 24-70mm... • Answered on Apr 07, 2010
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I need to take sharp photos with my new 24-70mm,

There's an old rule of thumb which says, the maximum usable exposure time for hand held shots (without IS) approximately equals 1 / focal length.
So let's say for 50mm, you should try to use no longer exposure time than 1/50s.
Of course its possible to bend the rule a little, so with proper technique you can easily get a high percentage of good shots at 50mm and 1/30s. However, it's very unlikely that you will get a sharp image at, let's say 50mm and 1/15s.
Hope that helps...
3/22/2010 2:37:53 PM • Canon 24-70mm... • Answered on Mar 22, 2010
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Sigma AF 24-70mm f/2.8 EX DG macro (Canon) or Canon EF 28-70mm f/

I have the Canon 24-70 f2.8 L lens, and there's no way you could ever get me to exchange it for a sigma lens. There's no question that this is a very excellent lens.

Why are you considering the sigma lens?
1/26/2009 7:03:28 PM • Canon 24-70mm... • Answered on Jan 26, 2009
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Reading the light meter on my camera

You didn't mention whether your Rebel was a film version or digital, but as best I can see from the manuals they are quite similar with regards to your question.

The camera does have a light metering function, but you won't see a needle like some of the older film cameras had. Instead, you will see in the viewfinder the shutter speed and the aperture settings. For example, 500 4.5 would indicate that the camera has determined that the shutter speed will be 1/500th of a second and the aperture f/4.5 to properly expose the shot. Depending on what mode you are in, you can control one or both of these numbers. If either number (or both) are flashing, it indicates that the shot will be overexposed or underexposed, and you must take some type of corrective action that the camera cannot do itself with the current mode settings.

Canon has manuals available online for all the digital Rebels and many of the film Rebels. See this link. Select EOS (SLR) Camera Systems in the top box, and choose the appropriate categories in the next two boxes, then click Go.
5/21/2008 12:47:43 PM • Canon 24-70mm... • Answered on May 21, 2008
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Fuzzy images

Hey jjbeanwink,
This is a very nice lens, and is unlikely that your blurry images are caused by the lens. The most common cause of blurry pictures is that the shutter speed is set to low. A general rule would be your shutter speed should be at least 1/60th of a second while handholding the camera. The bigger the lens, and the higher the magnification of the subject you are using the faster the shutter speed you should use. If camera shake is the cause of your blurry pictures you could also try using a tripod. Another common cause of blurry images is subject movement, and one solution would also be setting a faster shutter speed. Another solution is using the flash to stop the action instead of the shutter speed. Of course manufacturers do occasionally make a bad product and that is why there are manufacturers’ warranties. If you just purchased this lens you could have an authorized service technician look at the lens and see if there is anything wrong with it. I these suggestions help!

Sincerely,
Allan
Go Ahead. Use Us.

5/15/2008 4:04:06 PM • Canon 24-70mm... • Answered on May 15, 2008
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Auto focus

Hi Wendy,

You mostly have the camera set into shooting mode "C" instead "S".

Some of those Canon cameras may say, "Single Servo Autofocus" and "Continuous Servo Autofucus".

Set to "S" as in single.

For more help: [email protected]
2/15/2008 4:24:07 PM • Canon 24-70mm... • Answered on Feb 15, 2008
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Auto focus trouble

Most likely, you have changed the AF point, which only takes effect in the creative modes (Manual, Av, Tv, P, etc)

There should be a button on your camera that has a grid like pattern above it, like
-
- - - - -
-

or so. press that, look through the viewfinder, and move the shutter or rear wheel, you should see the different AF points like up in red, and as you turn different ones will light up, and eventually all of them. also, you can look on the screen on top (or back, if its a rebel) and it will show you which ones are selected while in that mode, instead of looking through the viewfinder.
12/7/2007 12:44:40 AM • Canon 24-70mm... • Answered on Dec 07, 2007
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My Canon PowerShot SX100IS will not keep the date/time. Every time it is turned off, it asks for the date/time to be set. What is causing this?

There is an internal battery that you cannot replace. IT has to be sent into service.
11/24/2021 6:31:13 PM • Canon Cameras • Answered on Nov 24, 2021
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How do i fix e31 on may canon

11/24/2021 6:30:51 PM • Canon Cameras • Answered on Nov 24, 2021
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Flash/Auto setting not working on Canon Rebel EOS 2000 35mm camera

remove the film and have it repaired and serviced by Canon. It is worth getting it fixed if you like using film. A number of companies are now making digital backs for cameras.
10/13/2021 10:08:06 PM • Canon Cameras • Answered on Oct 13, 2021
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When insert any sd card canon 70d says cannot creat folder

The part where the SD cards are inserted could be dirty and should be cleaned out with qutips and rubbing alcohol or it could also needs replaced as well.
6/1/2021 4:12:45 AM • Canon Cameras • Answered on Jun 01, 2021
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Cannon powershot A530 digital camera Camera

Try Formatting the card.
Someone could have locked it accidently.

2/25/2021 9:49:07 AM • Canon Cameras • Answered on Feb 25, 2021
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A590. Why does it indicate 'replace batteries' even after new ones installed?

Corroded contacts caused by "moistening"
1/9/2021 3:58:13 PM • Canon Cameras • Answered on Jan 09, 2021
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