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I have a Canon MV6 ic. The autofocus system often starts 'flicking', so that image jumps in and out of focus, a few times a second. my older anon mv100 does not do this.

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  • 7 Answers

SOURCE: Canon digital camera will not focus

Check your diopter adjustment. It should be a small wheel on the upper right of the viewfinder. It is designed so that people who normally wear eyeglasses can use the viewfinder without their glasses, but it can occasionally get bumped. If the diopter adjustment is way off, it is like looking through someone else's eyeglasses!

Posted on Mar 18, 2008

SOURCE: Canon 300d autofocus problem

Sound like the secondary autofocus mirror may be loose, gently move the main mirror up after removing the lens to have a look. If this is the case the camera needs to be repaired

Posted on Apr 05, 2008

MarkDay
  • 111 Answers

SOURCE: Canon 400d constant backfocus

Backfocus problems will be magnified when using wide aperture lens with shallow depth of field, nice lens btw. Camera's adjustments for manual and autofocus are inside mirror cage behind mirror, and you dont want to risk getting dust on sensor or damaging sensor. Qualified camera repair shop or sending to canon for adjustment would be my suggestion.

Posted on May 15, 2008

35361165
  • 1 Answer

SOURCE: Canon Rebel XSi seizing up?

u have lens problem is u see any error in display error 99

Posted on Jun 22, 2009

  • 12 Answers

SOURCE: Canon EOS 5D Autofocus will not work.

ho.....ho...
I have this prob in my canon EOS kiss SLR.
CHECK THAT>>>>>>>
Hold the camera vertically.Switch on the AF and let the camera to auto focus.!!!!!!!!!!!!!!!!
Don't wondering....Check ur camera's sub mirror in the in side of the sub mirror.The spring that push back sub mirror from the main mirror is broken.......!
How to repair this? Follow this link....
http://www.facebook.com/home.php?#/album.php?aid=2042115&id=1359757176
bye..ec262d7.jpeg

Posted on Nov 04, 2009

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Canon 7D -I have my setting on one shot - in any mode.- Lens: Canon 17-85mm. The autofocus jumps back and forth no matter where I focus at.


it means the lens is about to die.
i get same problem with my nikon 18-55 mm lens. the solution for my problem was that i shift from autofocus to manual focus on the llens and then back to autofucus. the lens works fine for me then :P
u can try the same thing.

Mar 02, 2011 | Canon EF-S 17-85MM F/4-5.6 IS USM Lens

1 Answer

Brand new Canon EOS Rebel XS. Suddenly, image in the view finder is blurry. Auto focus seems to be working, and pictures are coming out fine. But sometimes, the autofocus focuses on the wrong thing, and so...


Next to the viewfinder ther is a diopter adjustment so you can change the focus in the viewfinder. this is so if you need glasses the camera can be set for you. Start by focusing the camera on something, then slide to turn the diopter adjustment until it looks sharp and try not to bump it.

Jun 21, 2010 | Canon EOS Rebel XS 35mm SLR Camera

1 Answer

MY CAMERA (CANON 1000D) TAKES BEAUTIFUL DAYTIME PHOTO'S BUT CAN'T SEEM TO FOCUS ON A SUBJECT IN LOW LIGHT & AS A RESULT WONT TAKE THE SHOT. WHAT DO I HAVE TO DO TO TAKE LOW LIGHT / NIGHT TIME SHOTS ?...


Focusing in low light can be difficult for the autofocus system and sometimes you will need to use the manual focus, you can select the magnified image and see if that helps
See the online manual - page98 refers to how to magnify the image - using the magnify button - changes between 5X 10X and full screen
To help the camera autofocus there is an assist beam - this takes the form of flashes from flash to help the AF system focus - make sure it is ON - there is a custom function full details on Page 157 C.Fn III: Auto focus/Drive 6 AF-assist beam firing
FYIThe support site for this camera is here, including online manual http://software.canon-europe.com/products/0010629.asp
  • If this solutions solves you problem, please do not forget to rate my solution.
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Mar 31, 2010 | Canon Rebel XS / Eos 1000D Digital Camera...

1 Answer

Canon Rebel XSi seizing up?


u have lens problem is u see any error in display error 99

Jun 22, 2009 | Canon EOS Rebel XSi Digital Camera

1 Answer

Autofocus on my Canon 28-135mm f/3.5-5.6 EF IS fails


Hello. First, check the contacts on the lens mount--you're looking for bent pins, oxidized(odd-colored) metal, damaged contact points, etc. The camera must communicate reliably with the internal circuitry of the lens unit. If there is any dirt, moisture, intermittent contact going on, the sensitive focusing electronics will be effectively blinded. If all is fine with the contacts, then the problem lies with the circuits in the lens that provide critical focusing data to the camera. Movement of certain parts causes electrical changes to occur at a calibrated rate--if the camera loses connection, it can't tell if the lens is actually adjusting. You'll have to send the lens in for repair--http://www.usa.canon.com/consumer/controller?act=SupportIndexAct. This address should get you started.--Hope I helped!---Rick

Mar 19, 2009 | Canon 28-135mm f/3.5-5.6 EF IS USM AF Lens

1 Answer

Canon Rbl XT out of focus in viewfndr when shutter half way down


Hello,
It's possible that the reason the "pictures turn out fairly good" is that your f-stop is set high enough that even though the image isn't properly focused, you have enough depth-of-field to bring your subject into "near focus". Does your lens try to focus back and forth when you half-press the shutter? If not, double check that the lens is in autofocus and not manual focus. You can also try cleaning the contacts between the lens and camera. Take the lens off, and then one-at-a-time clean the contacts on both the lens and the camera, using a clean pencil eraser. Gently rub the contacts. Be sure to hold the item upside down so that the eraser debris falls on to the table, not into the camera body or lens!

If none of this helps the autofocus may have become damaged and you need to have the lens and camera looked at by Canon Repair.

Jan 10, 2009 | Canon Digital Rebel XT / EOS 350D Digital...

1 Answer

Cannot preview shots in lcd with new Canon Rebel xs 1000d


There are two modes to the XS's Live View system, selectable via Custom Function 7. Live View is disabled by default, by the way, so you'll need to find this menu item in Settings Menu 2 to turn it on. The two options are called Quick and Live modes. Quick mode works as most Live View modes do, dropping the mirror when you press the AE-Lock button (marked with an asterisk) to use the conventional phase-detect autofocus system. This temporarily blacks out the Live View image, which makes it impossible to know that you're still framing the subject and holding your AF point in the proper place.
That's why they added the second mode, which they call Live, but is better described as contrast-detect autofocus. This works just like a digicam, reading the image from the imaging sensor while adjusting the lens for the setting that produces the most contrast in the image. A small square appears in the center of the image area, and you can move it around with the cross keys. Just like Quick mode, unfortunately, you have to press the AE-Lock button first until you hear the focus confirmation beep, then press the shutter button to fire. It's a little slower at times than phase-detect mode, but it gets the job done. Live mode is really better for tripod work, where you can place the AF area right where you want it and confirm focus onscreen.
Both modes offer the ability to zoom in on your live view, excellent for confirming focus before capture. Using the Magnify button just right of the AE-Lock button, you can zoom in 5x or 10x, then press the AE-Lock button to focus if you like; but of course you can't confirm framing in that mode.

Jan 01, 2009 | Canon EOS 400D / Rebel XTi Digital Camera

1 Answer

Autofocus on 300mm 2.8 IS not working with 50D


Make sure the AF/MF mode button on the lens is set to AF.
What focusing mode do you have selected in the camera? Single Shot, AI focus or AI Servo? 
If Custom Function "C.Fn IV -1 Shutter button/AF-ON button" is set to option 2 or 3, the AF will start when you press the AF-ON button.
I hope this help you!
/Chris

Dec 28, 2008 | Canon Telephoto EF 300mm f/2.8L IS Image...

3 Answers

Autofocus jumps around and often will not settle on the correct setting


what i do is usually put it onto manual focus then back to auto focus, what it may be is that you are using the wrong lens for your subject :/

Feb 27, 2008 | Canon Rebel XT / EOS 350D Digital Camera

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