If an FX camera and a DX camera have similar 24 MP sensor (such as a D750 and a D7200, or maybe even the newer D500) would an image from FX camera have the same detail as DX camera if FX image were cropped down to same size as the DX image? I know these cameras didn't come out at the same time and don't have same sensor but I was wondering if I was to shoot distant subjects, such as small birds, would I get a better image (more detail) with an FX cropped down so subject fills the frame or with a DX image that has subject filling the frame without cropping? Assuming lens, exposure, etc... was the same for both cameras. I'm thinking the DX format would be better for distant bird photography. Hope wording wasn't to confusing. Thanks.