I was getting a bit of inconsistent focus and really could not point a finger at one thing after a whole lot of testing. I was leaning towards my body and/or the 17-50. I said eh, screw it. I'll send everything in since I'm going on vacation in a couple of weeks. Tamron is a 15-20 minute drive for me and their wait was longer than Canon so that got dropped off first, then I sent my 30D and 70-200 f/4IS in to Canon. All I had left was a Canon 1.4 Extender all by itself so I sent that in for the hell of it too. All three Canon items went out to Irvine together. I just got them back today (1.5 weeks round trip) and was surprised at the repair comments considering all three Canon items are no older than six months.
1.) 30D:
"We have examined the product according to your request, and, it was found that the adjustment of the pcb assembly was incorrect the focus did not operate properly. Electrical adjustments were carried out on the pcb assembly. Other electrical adjustments and inspection and cleaning were carried out."
2.) 70-200 f/4IS:
"We have examined the product according to your request, and, it was found that the adjustment of the lens assembly was incorrect causing rear focus. Electrical adjustments were carried out on the lens assembly. Other electrical adjustments, inspection and cleaning and mechanical adjustments were carried out."
3.) 1.4x Extender:
"We have examined the product according to your request, and, it was found that the lens assembly was out of place causing rear focus. Other inspection and cleaning were carried out."
Well FFS. All of my stuff had a problem? I'm pretty surprised. Very surprised actually, unless Canon likes to make us feel as if there was something wrong and now it's right for some sort of false piece of mind, or maybe so we feel as if sending in for repair/calibration is worth it.
So are we to assume that every piece of Canon gear we buy must go in for repair?
"Honey, don't bother opening that box FedEx dropped off, it has to go straight to Canon.. it's gonna need to be focus calibrated and electrical adjustments carried out".
I can't wait to see what Tamron has to say.
I won't say for sure YET, but from some preliminary testing I'll be damned if my lens/body are front focused now.
Anyway...
...I don't quite know yet.






