[sgotwr]

I have just been testing my Canon 70 - 300 is lens, that was sent to be repaired under the canon "special warranty", ( I think they mean re-call ), and returned yesterday, it is now as sharp in portrait orientation as in landscape orientation .
Anyone with this lens, within the serial No. recall range, contact canon and send it to be repaired asap.
This was a bit of a test as far as I as was concerned, as this is the second major issue with my canon gear, ( the other being the mirror problem on the 300d), if I was not happy with the repair or the service, I was ready to ebay my canon equipment and change brands, but it looks like I will be staying with canon.

sgotwr

[stepheno]

Nice to see a good result now and again Co-incidentally I've just returned from shooting soccer with my 70-300, I've never noticed the portrait focus issue with mine but, out of interest, where do you check the affected serial numbers?

[Sparhawk]

Originally Posted by stepheno

Nice to see a good result now and again Co-incidentally I've just returned from shooting soccer with my 70-300, I've never noticed the portrait focus issue with mine but, out of interest, where do you check the affected serial numbers?

Stepheno
Have checked on canon site serial no on lens is 8 digits if 3rd digit is 0 or 1 it needs repair if it is 2 it is ok
Regards
Sparhawk

[sgotwr]

info about the problem can be found here:- Support - Telephoto Zoom Lens - EF 70-300mm f/4-5.6 IS USM - Service Notices - Canon USA Consumer Products

The problem on mine was very noticeable when the image was viewed at 100%, I noticed it as soon as I started using the lens, but blamed it on a cheap polarizing filter .

The way I checked was, using a tripod, photograph a magazine about ten yards away at the 300mm setting, on the manual setting, with IS turned off, in lanscape and portrait mode. View both images at 100% to compare.
One thing I have noticed after the repair, is that there is no "zoom creep", the lens feels "tighter".

sgotwr

[stepheno]

Thanks for that info. I knew that Canon USA were dealing with the problem but does this mean that Canon UK have accepted there is a problem....and if so which Canon Service Centre did you send it to?

[sgotwr]

Yes, Canon Uk now accept that there is a problem.
I phoned the No. on their website, (08705 143 723) they then sent a email with a list of service centres I could send it to, for repair.
Turnaround was about two weeks, from Colchester Camera Repairs.

sgotwr

[stepheno]

Thanks for that, I'll have mine done anyway, just in case.