Damaged af for the lens if camera?

[I_ask_questions]

 

I was taking photos today and usually i have clean not kinda out of focus photos but today was different. i was looking at my photos and realized one of my photos are kinda out of focus so i reaserch it and found out my lens af cpu could be damaged so i look at my lens and i find this big streak going through each one.and was wonder If this was normal.

[shadowsports · Accepted solution]

Greetings ,

As you can see we both started asking the same questions.  This condition is not a normal occurrence and this lens does appear to have seen some neglect or abuse.  

If returning the lens is an option I would pursue that.  If not, the lens can likely be repaired by Canon.  Start by registering the lens in your My Canon account.  From there, you can initiate a repair request.

[normadel · Accepted solution]

No, not ANY camera shop. Some have repair facilities, others could recommend repair services or ship it out for you. Parts availability is a question. You ought to find out if Sigma has a repair service, like Canon does for their products. They could quote you on cost. The lens may or may not be worth repairing, versus buying another one from a good used equipment dealer, like KEH.com, MPB.com, or UsedPhotoPro.com. They give warranties.

[I_ask_questions]

Thank you!

[ebiggs1]

You didn't mention if you had just recently bought the lens used so did you? Canon cameras have spring loaded contacts and it is not possible for a Canon camera to gouge out the contacts on the lens. Someone had to use an  adapter or tel-con most likely a cheap off brand unit that did not have the spring loaded contacts.

The real bad thing is, whether you did the damage or someone else did, they need to be replaced. Usually this means replacing the sub assembly that the contacts live in.

[I_ask_questions]

 could i get the contacts repaired at any camera store?

[normadel · Accepted solution]

No, not ANY camera shop. Some have repair facilities, others could recommend repair services or ship it out for you. Parts availability is a question. You ought to find out if Sigma has a repair service, like Canon does for their products. They could quote you on cost. The lens may or may not be worth repairing, versus buying another one from a good used equipment dealer, like KEH.com, MPB.com, or UsedPhotoPro.com. They give warranties.

[I_ask_questions]

Will do. Again thanks for your help!

[Ron888 · Accepted solution]

Well this is odd.No matter how close i look at those contacts,none seem to be bent.
Are you referring to the dark strips across the middle group of contacts?Because that's relatively normal.To be sure,clean them with a little alcohol

[I_ask_questions]

You are correct none are bent its just odd how there is a streak to me and seems worse than normal but i will be sure to clean witb alcohol 

[Ron888]

I've owned many lenses with these marks.I cant remember that last time i've had such a lens not work.
In any case if it gives any more problems it's best to contact sigma.It may need a firmware update perhaps

[normadel]

You are not seeing STREAKS on the contacts. You are seeing DEEP DENTS in the contacts.

[shadowsports]

So I see now this was a sigma lens based on your report and not Canon, so obviously you'll need to contact Sigma instead of Canon for repair options.  Ebiggs1 is correct. As far as the repair goes, the entire mount assembly that houses the contacts will have to be replaced if those are indeed dented.  If damaged, the lens will remain unreliable until it's addressed.