Cant change aperture anymore!

[song4themoon]

Ok, I have no clue what the heck I am doing wrong now but on manual setting I cant change the aperture anymore. It sais 00 right now and wont change. Anyone know what this is? The Shutterspeed changes fine.

[BigFatCat]

Try, turn off your camera, remove your lense and put it back on.

Hope this helps.

[Choderboy]

Take your lens off. Put it back on.
If no success , remove battery then replace.
Then try lens off , battery out (at that stage , my 20D with Sigma 24-70 started to work again)

The body is not getting signals from the lens (or thinks it's not)
Probably dirty contacts - lens to body.

[Choderboy]

Beaten to the post!

I noticed I could not take a pic when 00 displayed..

[song4themoon]

I got it to work again, thanks

[bolantej]

I got it to work again, thanks

how? Mine only shows that when I have a manual lens with no contacts. Glad yo ugot it working.

[stupot]

ive had that, i cleaned the contacts.

[Crashoran]

I was about to say, make sure the on switch is up fully if you use a 20D, but then you said it was 00..

[::John::]

Take your lens off. Put it back on.
If no success , remove battery then replace.
Then try lens off , battery out


This sounds like early versions of the Windows operating system :)

[lost]

That happens to me sometimes when switching my sigma lens in and out. Just "fully" power down and back on and it works fine.