Error 99 on EOS 400D

ArcticFox · 16th December 2008

This is like one of the worst errors you would ever get.

I was in Japan when it first showed this error, I was shooting then the aperture suddenly turns dark which I think is due to the aperture. Few shots later, it is back to normal. Roughly, 10 shots later, disaster.

When I shot, it gave me a ERR99 saying that I should change battery. Since the camera pointed out it was the battery, I thought it was probably the cold that causes the camera but, the camera doesn't show any problem when you shot from 24-55mm. After a couple of days, I found out that as long as your are at the widest aperture of a focal length, it works. (eg, f3.5 at 18mm is okay because f3.5 is the widest) So, basically, there's something wrong with the aperture control.

This sucks, especially when you are overseas.

Now, I am going to bring it to CSC soon.

Yappy · 18th April 2009

HI..

I have the same problem and it is happening more frequently now.. what has CSC got to say?

ProMushr00m · 19th April 2009

Originally Posted by Yappy

HI..

I have the same problem and it is happening more frequently now.. what has CSC got to say?

I also experienced this thingy last year... CSC told me its the problem with my 18-55mm.. the aperture blade stuck..
i Actually tried removing the battery and reinstall, press the DOF preview button to open and close the aperture blade, but its stuck, but pressing that button somehow release the aperture blade to open.. so using that lens i never use small than F3.5, haha.. So CSC actually replaced a new aperture diaphragm, cost is free coz under warranty -.-||| this happened 5 days after i bought my new camera...

+evenstar · 20th April 2009

Originally Posted by Yappy

HI..

I have the same problem and it is happening more frequently now.. what has CSC got to say?

if you don't bring it down for a look, what do you want CSC to say?

16th December 2008	#1
ArcticFox Member Join Date: Jun 2007 Location: 1°25'10.16"N 103°50'11.01"E Posts: 619	Error 99 on EOS 400D This is like one of the worst errors you would ever get. I was in Japan when it first showed this error, I was shooting then the aperture suddenly turns dark which I think is due to the aperture. Few shots later, it is back to normal. Roughly, 10 shots later, disaster. When I shot, it gave me a ERR99 saying that I should change battery. Since the camera pointed out it was the battery, I thought it was probably the cold that causes the camera but, the camera doesn't show any problem when you shot from 24-55mm. After a couple of days, I found out that as long as your are at the widest aperture of a focal length, it works. (eg, f3.5 at 18mm is okay because f3.5 is the widest) So, basically, there's something wrong with the aperture control. This sucks, especially when you are overseas. Now, I am going to bring it to CSC soon. __________________ 400D 18-55 50 430EX "Your first 10,000 photographs are your worst" -Henri Cartier-Bresson Last edited by ArcticFox; 16th December 2008 at 01:33 PM.

18th April 2009	#2
Yappy Member Join Date: May 2004 Posts: 546	Re: Error 99 on EOS 400D HI.. I have the same problem and it is happening more frequently now.. what has CSC got to say?