D7000 and FX lenses
The primary disadvantages of FX lenses on a DX body are size, weight, expense, and nonoptimal FL ranges. Because of the larger image size, FX optics need to be proportionally larger.
However, the highest quality lenses are FX. Nikon's FX f2.8 trinity (14-24,24-70,70-200) is reknown (and should be, for $8K) but Nikon offers only a 17-55 f2.8 in the DX pro range.
Nikon is now moving strongly towards FX for its enthusiast and pro level camera bodies, which nicely resolves the pro-DX lens sparsity problem. DX will still be around, but it was originally created as a workaround for the unaffordability of FX sensors. Now that FX sensor production costs are dropping, DX may be relegated to entry-level duty which tends to be the domain of convenience zoom lenses.
I don't particularly like this apparent direction, but DX may have a tough road ahead as u4/3 products continue their improvement.
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