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Message: <blockquote data-quote="hollis_f" data-source="post: 1649276" data-attributes="member: 14566">Nope. You're ignoring the topic of this thread.Follow your point through and you're saying that a 1536x1024 FF sensor will give even better image quality than your 5D MkII. Yes, the noise performance would be phenomenal. Yes, 100% crops would be amazingly noise-free. But image quality would be totally crap because you wouldn't have enough pixels per bird to see any detail.There are two, mutually-exclusive, factors that are in play when designing sensors. First you want each photosite to be as big as possible to maximise signal:noise. Second you want each photosite to be as small as possible to maximise the amount of detail you can capture. Every sensor design has to be a compromise between those two factors.In the 5D they've gone towards the large-pixel, low-noise, low-detail end. The 7D is set at the small-pixel, high-noise, high-detail end. The 1D is set firmly between them.What's plain is that the 7D is just about at the limit for pixel density. From experience and reviews, it looks like you really do need a top-quality lens to take advantage of its resolving power. A substantially higher pixel density will just result in the blur (from imperfect lenses, diffraction, AF uncertainties) being spread over multiple pixels.</blockquote>