There are various things this could be. Firstly we would need to
examine the lens to check that the zoom guides are not worn
then we would project the lens and see what results it produces
from there we would set the lens alignment and centering.
For this work and service of the lens would be £110 plus return
postage and VAT. We look forward to seeing your lens and please
quote this number when sending in F113
Regards
Ron

I recently acquired a 2nd hand 24-70 f2.8L lens, which looks immaculate on the exterior (August 2009 date code). However it looks to be very soft at the wider end at 2.8, and not improving much stopping down. It’s better towards the longer end however still far from perfect. Subject edges also appear “fuzzy” and not well defined. I’ve tried auto focus micro adjustment however this doesn’t seem like much help. Same story on both my 5Dii and 7D.

Do you have any idea what the problem might be? How much would an initial inspection/repair/calibration cost please? If you could also let me know the turnaround time I’d be grateful as I’m travelling in a couple of weeks!

Many thanks

Regards
Ron

All you need to do is forward the camera to us with
this reference F112 and your details.
We will carry out the repair of the light leak fitting a
light trapping inside the camera along with Canons
guidelines. Canon will cover all costs for this light
leak problem.

Spoke with Canon U.K and they indicated that you were one of their authorised repair centres. Canon U.K also verbally confirmed to me that they would honour the light leak repair on this camera and bear the related costs. I wanted to get this issue attended to and have 3 questions to ask.

1. Would I need to get an email from Canon U.K confirming that this repair would be free to me (to include return postage of camera), prior to making any provisions with you (for the sake of total clarity, so no surprises).

2. I understand that the light leak repair would entail opening up the A650IS and inserting a piece of black mylar covering inside of the back of the camera body. Is this what you would be doing?

3. What would be a fair estimate of turnaround time once you are in receipt of camera.

Also is there anything else that would be required?

I have a Canon 24-70 2.8L that has a problem.

When zooming in from 24mm to around 32mm it is jerky rather than smooth. Zooming out from 32mm to 24mm feels fine though. There is also lens creep between these focal lengths when the lens is at a high angle of around 80 degrees or so.

Any ideas on cost to repair?

Regards,
Connor.