>I would have assumed the D3 would be the best landscape >camera for now since it has a full frame sensor it would >allow for true 12.1 mp shots with the widest fov and lowest >noise. I also would have thought the D2x would be a good >camera to keep for sports BECAUSE of its 1.5X crop factor >and the 2X crop in HSC mode. > >I will likely get the D3x when it comes out since it will no >doubt be in the 24+ mp range and be optimized for >landscape/portrait work. >At that point the D3(s) would be able to back each other up >to some extent if one failed but clearly they couldn't >replace each other. > >However, I should keep a APS-C camera to take advantage of >the high pixel density in the small sensor size. This gives >me the 1.5X advantage with full resolution on the image. I >have a 200-400 that becomes a 300-600 or 400-800 f4 in HSC >mode. I have a 200 f2 that becomes a 300 f2. Not to >mention I have a 12-24 and 18-200VR that are great lenses. >So there is no doubt I want to keep an APS-C camera. The >question is in the role and line up described above, would >the D2x or D300 be a better choice.
If you had a 24MP D3x, you wouldn't need an APS-C camera. The DX crop would take it back to 10MP.