Shocking insight: AF is not a closed feedback loop!

Started Jul 18, 2003 | Discussions thread
AdamT Forum Pro • Posts: 58,967
Re: incompatibility with 10D?

distant scale. Guess what? It was jumping as much as on 10D when
pressing AF multiple times on the same subject. Focus lock - 10ft!

the 24-85 does this also at 24mm especially at infinity in fact you can see it in the viewfinder most of the time and unless you're careful and know what you're doing OOF shots can abound, this has been mentioned before, it would seem that the magic number here is "24", All lenses can Jitter around on ANY body from a 10 to a 10D, the wider they are, the worse it is depending on what you're aiming at and that includes the D60 and 1D also, the AF sensors are massive compared to the detail they're trying to focus on at infinity though that doesn't explain why they are OOF if ALL the detail under the sensor area is at infinity..

I'm just saying that it's not a "10D" thinng and not solely with the 24-70L

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