7D AF spot problem

[neuroanatomist]

Hirosz is right.

I don't think we can conclude that yet. Hirosz has posted some pictures with no explanation, no EXIF data (what lens? what aperture?), we don't know if AF microadjust has been done, etc.

I shot also a single flower arrangement, I was close to the AF proxi limit of the 135, and the point is made 3 flowers aside the target flower.

Of course, with a close subject the DoF is thin, especially if you were shooting at f/2. This situation will reveal any focus issues, and is why your 7D offers an AF microadjustment feature (which it sounds like you haven't tried, but maybe you have?).

Canon never did things wrong ? Never ? I won't criticise Canon on this forum.

Criticize away. Canon has made mistakes in the past. They will in the future. But it's good to be sure of your facts, first.

I know that hammer thing, and on all forums there are always such arguments by people who "never had problems", or so it seems.

I've had problems. When I used a T1i/500D, I bought an EF 100mm f/2.8<span style="color: #ff0000;"]L Macro IS lens. Even though I shot the bulk of my macro images with manual focus, I used the lens for other types of shooting and noticed a distinct front-focusing issue with the lens. However, since the T1i lacks the AF microadjustment feature, my only option would have been to send the lens and body into Canon for calibration. That issue was one of the main reasons for my upgrade to a 7D, and going forward, especially with my current collection of fast lenses, I will not buy a body without AF microadjustment. For what it's worth, my EF 135mm f/2L needs a +5 adjustment on my 7D - that would lead to consistently out-of-focus shots had I not done the adjustment.

But MY camera has a problem. And not me.

That's certainly possible. There are defective Canon cameras, just like any manufacturing process can produce a defective product. That's why a warranty is useful. I'd say it's unusual that if there is a defect, after two trips to Canon Service, no problem was found. Unusual, but not impossible. Of course, user error is also a possibility. I appreciate - and respect - that you make a living from your photography. But just because a race car driver makes his living from driving, it doesn't mean that he knows exactly how every part of his racecar works. Understanding how your equipment functions, especially its limitations, is important. Looking back, we've already seen some evidence of user error:
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But ... maybe I make a mistake in using the spot AF for action/sport pictures ..

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