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Message: <blockquote data-quote="papa2jaja" data-source="post: 199336" data-attributes="member: 14651">Hi Geoff, I am not sure I understand what this is about, and let me say that I also am more interested in learning facts than putting up an argument which is the better camera. But there are a couple of issues with your comparison that seem to make it not meaningful to me.For one, AFAICS the D800's image comprises a much larger area, a much larger portion of the scene, while the 7100 shows a smaller area, which IMHO renders the two images uncomparable if you want to compare the resolving power of either the sensor or the camera.This to me seems like comparing apples and oranges, because in order to really compare the resolving power of two cameras, it would be necessary to make sure that either the two images show exactly the same content, and then crop from it, or to make sure that the cropped area occupied an identically large area on both sensors, and then crop from it (I am not sure exactly what you are trying to show - that the one camera shows more detail than the other, or that the one sensor shows finer detail than the other).Apologies if this comes down to crop factor, I'm not yet knowledgeable enough about these terms to use them proficiently, but purely logically, it seems that the comparison as you have uploaded it may compare differently large sensor areas, as you have not taken into account the physical dimension of the sensor area actually occupied by the cropped portion.Also, the D800  has more dynamic range than the 7100, so its unprocessed images look flatter and seem to have less contrast when cropped like this than the images of a camera with less DR. You can see this by looking at any website comparing for example almost equally good M4/3 or APS-C sensor cameras to FF sensor cameras (dpreview has such reviews, another one is at <a href="http://blog.mingthein.com/2013/09/11/the-2013-olympus-om-d-e-m1-review-2/" target="_blank">The 2013 Olympus OM-D E-M1 review, part two: some comparisons</a> (between the two test images in the 'Important testing notes' section) including the D600, where the detail images of the M4/3 look loads better than that of the D600 for this aforementioned reason).So the fact it may be that the 7100's crop looks more colourful and detailed just because it has less DR, and that it is not an indication of the better resolving power of this camera. AAMOF I had before purchasing the D600 and then the D800 always wondered why their images in those detail comparisons look relatively flat, although they are much more expensive and allegedly better, until I recently found the explanation in this comparison above.</blockquote>

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