Another strange bug with D4, possibly D800!?!?

Started Feb 5, 2013 | Discussions thread
jdhill66 New Member • Posts: 9
Re: It is by design for matrix metering

I think there's another element that is confusing this discussion. It appears that holding the AF-ON button is not what "locks" the focus. It becomes locked when the AF-ON button is RELEASED. Holding it in means that focus can still be changing, as is obvious when in AF-C mode. And in Matrix mode, holding AF-ON in also lets the metering change to some degree. Releasing the AF-ON button lets the metereing adjust fully. On my D800 the only place I see the change in metering from holding to releaasing the AF button is the combination of AF-S and Matrix. All other combinations show no change in exposure between hold and release.

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