Question about Canon EOS 400D / Rebel XTi Digital Camera

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My 400D have no autofocus

I have problem of autofocus in my 400D but because doing the cleaning of mirrors, a small spring jumped and it stopped the autofocus, need help to restore the spring in place, maybe a drawing or photograph because the country where I live has no technical service.

Thank you

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  • ToGomes Jun 10, 2008

    ok, tanks, but that it is to much time, and I'm accustomed to working with technology, but in this case just do not know where and how the spring cam be placed

    Thank you

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In that case my tipp don't mess with it further, pack it in (the body ) and send it to canon for a repair see www.canon.com and cntact them about this isue ask what the cost will be and send the camera in by secured and insured parcel service like tnt (www.tnt.com) describe on paper what ypi have done so that a expensive technician knows where to look.

Posted on Jun 10, 2008

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2 Answers

My canon eos 400d will not autofocus in creative settings.


Hey mate,

I've been having the same problem. It annoyed me during a day out once.

Set the camera in one of the Creative Modes.
-> Then go to Menu (the button on the left of the screen)
-> Setup 2 (thats the furthest menu on the right)
-> Custom Functions (3rd option down)
-> Go to function 4 and change it to "0: AF/AE LOCK"

Hope that helps mate :)

Cheers
Baghdad_boy

Feb 18, 2010 | Canon EOS 400D / Rebel XTi Digital Camera

Tip

Canon Digital Rebel autofocus problem (EOS 300 and 350)


Hi.

A number of complaints from Digital Rebel EOS owners reported that the auto focus feature suddenly stopped working. In some case the picture was showing a dark shadow on the lower side.

The problem is a factory defect caused by a factory defective autofocus sub mirror. The problem is known to most repairers ( and sadly to users ). Although the defect due to design problem, Canon never acknowledge that this is a factory defect, and never issued a recall and free repair notice for Digital Rebel defective autofocus.

THe repair is done replacing the mirror. The cost ranges between $120 and $180.

As first line of action, check any of the links below, and call Canon. Complain, and see if you can get discounted repair.

If that does not work, the alternatives are using the camera with no AF, or having the camera repaired at own expenses. Often the sub mirror may get even more stuck, and pictures start showing the black shadow from mirror on lower part of the picture.

This is the cause of your troubles:

2db6c0a.jpg


Here one of several repair websites dealing with the problem. I quote:

"Most autofocus repairs are related to problems with the small mirror under the main mirror (known as the sub-mirror). There is a plastic post that operated this mirror which sometimes breaks. We replace this post with a brass pin so that the problem will not recur. "

Here one of the many forums on the problem. Please read the testimonial from other users, it is quite instructive.

Other forum.

Here replacement pin.

Here how to do the repair.

Here Canon contact:Canon technical support phone number.

Good luck.


on Sep 07, 2010 | Digital Cameras

1 Answer

I have a Canon EOS 400D. Photographs are appearing with what looks like round marks or bubbles in the image. I've cleaned and changed the lenses but it still appears. I am wary about cleaning inside the...


There is a mode in which you can lock up the mirror and shutter blades so that the sensor is exposed. Use a appropriate cleaning kit and avoid touching the sensor.

Jan 01, 2010 | Canon EOS 400D Digital Camera

1 Answer

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

Nov 02, 2009 | Canon EOS-5D 12.8 Megapixel SLR Digital...

2 Answers

F stop


Sounds like your camera and your lens aren't communicating. Have you tried cleaning the contacts on the camera and the lens mount?

Sep 27, 2008 | Canon EOS 400D / Rebel XTi Digital Camera

1 Answer

Focusing problem


Hi everyone.

I had the same problem with my 400D. It refused to focus. On manual focus I could take pictures though, but not on Auto focus.
What happened was I cleaned the mirror with a piece of soft cloth, the spring hooked onto the cloth and came loose.

I took my lens off, checked the mirror, found that the little spring connecting the mirror and the little glass part above the mirror was loose. Took a lot of patience and hours to get it back in. I used a pair of tweezers 2 x toothpicks and a short piece of fishing line (thin line). Go have a look at another 400D how the spring should be clipped in. I used the fishing line to hook the " L " shape of the spring back in after I lined the back part of spring up, since there is no space next to the mirror and the body of the camera.

Like I said. This takes a lot of patience and be prepared to sit for 3 to 4 hours.

It worked though.

Hope this helps.

Where can I get a service manual for the 400D ?


Jul 16, 2008 | Canon EOS 400D / Rebel XTi Digital Camera

1 Answer

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.

Feb 27, 2008 | Canon EOS 400D / Rebel XTi Digital Camera

1 Answer

Canon 400D. Autofocus problem


(facing the LCD screen towards you, as if you're going to take a photo) there's a button in the upper right-hand corner that will allow
you to AF to a certain point (9-pts total) or the center, or all 9-points, maybe you have it set to one point and it's off center??
definitely sounds like a camera setting probelm
just a thought

Feb 17, 2008 | Canon EOS 400D / Rebel XTi Digital Camera

2 Answers

Canon Digital Rebel 300D


id recommend taking it to the canon dealers..this seems like a problem with the software

Nov 29, 2007 | Canon Rebel XT / EOS 350D Digital Camera

5 Answers

My Canon digital rebel will not autofocus correctly. My camera has 7 points autofocus, but it will only autofocus on the far right point. All other points are not used. I have had the camera for 14 months...


I had this problem awhile ago - you must have accidently adjusted the focal area - it is sooooo easy to do without realising it. Here is what I was told:
**************************

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.

Nov 07, 2007 | Canon Rebel XT / EOS 350D Digital Camera

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