Auto Focus on 18-55mm lens not working

[rca1992]

Up until today my 18-55mm lens has been working just fine while on AF; however, today when I took my camera out I found that the AF feature wasn't working. It works fine when on MF. The thing that I find wierd is that the AF does work [kind of] if the camera is on live view [using the screen to track a shot rather than the view finder], but that even that is limited. Any ideas on how I'm able to fix this?

Thanks in advance!

[Waddizzle]

---

@rca1992 wrote:

Up until today my 18-55mm lens has been working just fine while on AF; however, today when I took my camera out I found that the AF feature wasn't working. It works fine when on MF. The thing that I find wierd is that the AF does work [kind of] if the camera is on live view [using the screen to track a shot rather than the view finder], but that even that is limited. Any ideas on how I'm able to fix this?

Thanks in advance!

---

What camera, and what is the full model number of the lens?  Does the model number end with "STM"?

[rca1992]

The camera is a Canon T3i. The lens is an EFS 18-55mm with image stabalization.

[kvbarkley]

Please tell us all the numbers and letters in the model name.

[rca1992]

8936229483 -- I hope this is the right informaiton needed because it  is the only identifying number that I can find on it.

[kvbarkley]

No, around the inside of the filter ring it will say something like EF-S 18 - 55 F/3.5-5.6.... We need all those numbers

[Waddizzle]

---

@rca1992 wrote:

8936229483 -- I hope this is the right informaiton needed because it  is the only identifying number that I can find on it.

---

No, that isn't the model number.  Look at the art that says "EF-S 18-55mm".  There should be more stuff written after it.

[rca1992]

Okay, hopefully I've got it this time. Clearly you can tell I'm a rookie! I have a canon EFS 18-55mm image stabalizer macro 0.25/0.8ft lens. 

Thanks for your help!

[ebiggs1]

Did you by chance try to focus it while it was focusing? Even if you just accidentally touched the focus ring?

[rca1992]

That is a possiablity. Is there a quick fix that I can try?