ezlyf Offline Upload & Sell: Off
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p.1 #18 · Very Frustrated with Canon Service!! | |
AGeoJO wrote:
ezlyf wrote:
Yes. The backfocus is pretty consistent on two other bodies I tested the lens with. from about 5-7 feet subject distance with the ceter focus point on the subject's eyes, it consistently focuses on their ears. I'm only able to consistently use this lens with the 5D2 because of microfocus adjust. Like I said before, -14 on the 5D2 and it's spot on and consistent.
Why should I have to send the body in when the lens has a consistent focus behavior. Other L lenses I have don't have this issue which bring me to the conclusion the lens is out of spec. Doesn't canon have much more specific tools to justify calibration spec than my own camera? Like I said, all bodies have querks, but that shouldn't mean such an extreme adjustment to the point to make the lens usable.
I'm starting to presume there may be an issue with the AF hardware itself. Really though, at this point, I just want it fixed right. Shipping each way is costing me $50 a pop for insured shipping.
Hm, it requires a micro focus adjustment of -14 but the AF is consistent and still within the tolerance range, right? It is not a super precision device, as you know . By all means, you could send that in and you already did anyway. I hope Canon will adjust it to your satisfaction the next time around.
Yes. At -14 on the 5D2, it's dead on. But translate that adjustment on a 5D mark I and you could be backfocusing 4-5 inches from subjects eyes from a distance of about 10 feet. Thank goodness for micro focus adust. It's allowed me to use this lens consistently with my 5D2 but I hate thinking that this is "just" a lens for the 5D2 because of focus issue. I'm not an extremely critical guy when it comes to focus. (i.e. viewing each strand of eyelash) But being completely out of focus is a total different issue.
I really do hope one day I can rave about my experiences with Canon Service, but for now, I'm just holding my breath.
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