Does Adobe plan to offer tethered shooting support for Nikon D800 & Canon 5d Mk 3 in PS Lightroom 4?
Tetherering in Lr is dependent on the camera vendors SDK, which at time of release wasn't avaialble for either of the two cameras you mention. Fortunately, Canon and Nikon have recently made their SDKs available, therefore, I suspect we'll see tethering for SDMk3 and D800 sometime in the coming few months.
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