Question about Canon Digital Rebel / EOS-300D Digital Camera with EF-S 18-55mm Lens

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Error 99 with Canon

I have a Sigma 400mm 5.6 that registers Error 99 whenever I try to use it with my Canon 300D or my Canon 20D.  Oddly, the problem doesn't occur when I attach the lens to the 5D, but that's not the body I want to use it on.
I'm going to Costa Rica and would love to take this very lightweight lens with me, but can't it if won't work.
Please help!

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You need to have your Sigma lens rechipped. Contact your local Sigma representative, they should be aware of this, and will be able to tell where to take the lens to be rechipped.

Posted on Mar 21, 2008

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Canon D300 camera and 18-55 mm lens = when I click the camera not exposing the picture and massage display on LCD Error 99,

Posted on Mar 09, 2009

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I have the same lens and had the same issue to begin with. The problem is that the lens is fixed at 5.6, so when the camera tries to automatically change the aperture, it is unable to and this causes a crash.
If you set the camera to one of the manual aperture settings and adjust the aperture to the lowest possible whenever you change the zoom level, it works fine. It's only a slight inconvenience and once you get used to checking before taking a photo, it's no problem.

Posted on Apr 14, 2008

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1 Answer

What is error 99 in canon eos 20d


It's a frustrating catch all error and needs service.The camera may have any one of numerous issues or lens issues. If you have more than one lens, see if the error occurs with both lenses on. If not then it's a lens error. A camera repair facility can plug unit the camera and download a more accurate troubleshooting code. Royal Camera Service in Hanover Park, IL is good source for this problem. The replaced the shutter on my 20D when I got the error 99 code.

Feb 06, 2013 | Canon EOS-20D Digital Camera

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Canon EOS 300d will not close aperture on sigma lens


Hi
It is well known that some lenses made by Canon for the EOS film camera range do not work well with digital SLRs. Canon lenses work fine but it may be worth checking if the Sigma has a known problem with EOS digtal bodies.

Regards
Martin

Sep 14, 2009 | Canon Digital Rebel / EOS-300D Digital...

1 Answer

Cannon Eos 400D Err 99?


Error 99 is a NONSPECIFIC error message. It is almost always associated with the LENS. I first got this error on my EOS 20D whei I tried to use an older Sigma zoom lens (7 years older than the camera). I don't use off-brand lenses with my Canons. Try removing the main battery first followed by the time & date battery which is hidden in the battery compartment beside the main battery. This will reset your camera. Good Luck!

Nov 30, 2008 | Digital Cameras

1 Answer

Canon 300d gives error 99 and does not work


Try the following diagnosis steps: -

To isolate the cause of the issue, do the following: -
1. Turn off the camera.
2. Remove the lens, battery, and CF card.
3. Allow the camera to sit without power for approximately 20 minutes.
4. Insert only a fully charged battery, and turn on the camera.
5. Depress the shutter button as you would to take a picture.

Does the “ERR 99" message appear? If so, the camera may be faulty and requires a service. If it does not, then: -
1. Turn off the camera.
2. Insert the CF card.
3. Turn on the camera.
4. Format the CF card in the camera.
5. Depress the shutter button as you would to take a picture.

Does the “ERR 99" message appear? If so, then the CF card is faulty. Try a different card. If the message does not appear: -
1. Turn off the camera.
2. Clean the gold contacts on the lens by GENTLY rubbing them with a pencil eraser or soft cloth. Keeping the camera face pointing down, also clean the gold contacts on the camera, being careful that you do not let any debris fall into the camera body.
3. Reattach your lens.
4. Turn on the camera.
5. Depress the shutter button as you would to take a picture.

If the “ERR 99" message only appears when one particular lens is attached, then that lens should be examined by a service technician.
If you see the “ERR 99" with a different Canon lens attached, then the camera is faulty and should be serviced.

Nov 28, 2008 | Canon Digital Rebel / EOS-300D Digital...

1 Answer

Canon 20D err 99 and shutter going off continuously


its not the battery

its the exposure of the shutter speed of the camera

it might need to be set manually. set it to 2.8 or 4.5 speed

i had the same problem when i bought my sigma 20mm-80mm lens.

the lens wasnt talking to the camera properly, it didnt know what it was aying about exposure speed rate.

put the camera in AV mode and set the speed rate.

the lens might be compatible with your camera even though it is a canon, or it could be defective

return and replace

Apr 21, 2008 | Canon EOS 20Da Digital Camera

1 Answer

Error 99 in canon 400D


You will get that error when using some lenses other than Canon. A lot of the older Sigma lenses have that issue. Do you get this error when using newer Canon EOS lenses?

Apr 01, 2008 | Canon Digital Rebel / EOS-300D Digital...

1 Answer

Error report 99 on my Canon 20D


take out battery for a few mins and that resets the error, well it worked. or Before I reset it, take off the lens and put it back on.
i heard that some have problems with the lexar cards.
http://www.lexar.com/support/cust_advisory.html
in short, format the card every so offten in the camera and see if that fixes it.
also
try a firmware upgrade if your 20D has highest version get this at canon website

Feb 22, 2008 | Canon EOS 20Da Digital Camera

3 Answers

Error 99


I get error 99 sometimes on my 20 D but it?s usually to do with a lens that is attached. Sigma lens have been known to cause error's. If it's not that or dirty contact on the lens then it could be a more serious problem. I would at least check it out with a canon dealer/repair centre.

Sep 14, 2005 | Canon EOS-10D Digital Camera

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