Hi All, I have the venerable 40D. My longest lens is a 200 2.8L version 1. I sometimes shoot planes from a distance and often wish for more focal length and end up cropping fairly heavily. I've been considering the 70-300L for some time in order to get "closer" to my target. But now I'm thinking that the 70D with twice the megapixel count might allow me top crop more and therefore give me better IQ.
Which would be the better option:
70D with twice as many pix on target,
70-300L with greater focal length