>I'm currently using a D2x and D300s and plan to add a D600 >early next year. I'd like to know if the dx crop is good >enough to do away is dx bodies? Is the crop similar to the >D700's crop where the dx outline is a red rectangle displaying >the area? Do I keep one of my dx bodies? I like dx for the >extra reach, especially with the Sigma 150-500 OS but could >have it both ways in one body.
Honestly, it would make a LOT more sense do do one of the following:
1. Buy A D7000. Better low noise performance, better image quality, no loss of "reach".
2. Buy a D800. Better low noise performance, better image quality, slight increase in "reach" due to DX crop being over 15MP.
3. Buy a D600 and a 1.4x tele. Better low noise performance, better images quality, similar reach.
Doing a DX crop on a D600 makes very little sense to me.