PHRubin wrote:
I'm surprised you are not keeping the 18-140, it covers the most common range of focal lengths.
There is little advantage to a FX over a DX. It is mostly low light performance.
The advantage of DX is lighter, smaller, less expensive, larger selection of lenses, greater reach and for wide angle, can use wide angle lenses that are not compatible with FX.
Keep in mind, if you consider using the D750 in "DX mode" unless there is some magic I don't know of, you will be cutting out more than 1/2 of the pixels; 1/(1.5*1.5) = 0.44.
Neither landscape nor portrait photography is usually done in lowlight.
It seems for your use the D500 is the better choice.
I'm surprised you are not keeping the 18-140, it c... (
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I was going to give my D7000 away. But I think I will keep it for a back up for now. Therefore, I will keep the DX Lenses.