Luminous Landscape Forum

Equipment & Techniques => Cameras, Lenses and Shooting gear => Topic started by: jmac on January 27, 2009, 05:49:26 pm

Title: Problem with Canon Lens
Post by: jmac on January 27, 2009, 05:49:26 pm

I have been using the Canon 17-85 mm IS lens on a 30D for about three years.  Two weeks ago the camera seemed to be having a problem with autofocus in finding a focus point.  I was using it outdoors in about 20 degree weather for about 30 minutes.  I tried my other lenses on the same camera and they worked fine, so the issue appears to be in the lens.  When I push the shutter down, the lens moves in and out trying to focus but fails to do so.  Anyone else have a similar problem?  I am assuming this is in the electronics in the lens.  Solutions?  (Apart from buying a better lens, that is.)  Thanks for any suggestions.

Jmac

Title: Problem with Canon Lens
Post by: DarkPenguin on January 27, 2009, 05:55:16 pm

Did you try cleaning the contacts?

Title: Problem with Canon Lens
Post by: jmac on January 27, 2009, 10:57:07 pm

Quote from: DarkPenguin

Did you try cleaning the contacts?

Tried that, didn't help.

Title: Problem with Canon Lens
Post by: marcmccalmont on January 28, 2009, 07:04:22 pm

Have you tried another lens on your camera to isolate the problem to your lens?
If it is your lens (or camera) send it to a Canon repair center.
Marc

Title: Problem with Canon Lens
Post by: telyt on January 28, 2009, 09:28:42 pm

Quote from: marcmccalmont

Have you tried another lens on your camera to isolate the problem to your lens?

Quote from: jmac

....  I tried my other lenses on the same camera and they worked fine, so the issue appears to be in the lens.

Title: Problem with Canon Lens
Post by: marcmccalmont on January 29, 2009, 04:13:55 am

Opps egg on my face!
Marc