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All the battery have a life time fixed working hours. Your battery is charged but he complete is working time. Thats why these msg will come. Dont warry use the battery when you see the power going down after a while of charging then change the battery and buy new 1. Good luck.
Thanks, i am waiting for your feed back & if you satisfied then thumps me please.
Check your focus modes to see if you are using one that is different to usual. When a DSLR has no focus lock it won't take a picture. Also verify that the focus motor in the lens is working ok. Google 'lens focus tests' and see what you can come up with.
I found this site to solve this problem. I got as far as tapping the lens, while turning it off. That worked but I still could not take pictures, so, I got the idea to put slight pressure on the lens when turning the camera on and was delighted to see that the error message was gone. Then, reluctantly, I snapped a picture...It worked. Hope this helps u 2..
On most lenses the way to test if your old lens works on a cannon digital to set the camera to AV then set the iris to the small setting ie F16/F22 then use the stopdown button.
Things that might happen
1 The lens will close down OK
2 The error 99 will show,will need are rechip if avaliable
3 Nothing happens, will need a rechip
Q.Why will it work inside but not outside.
A. Inside the camera needs light so the iris is full open, outside the lens needs to close down and if not compatible it is unable to close down. will need a rechip