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<blockquote data-quote="ISOhappy" data-source="post: 642812" data-attributes="member: 44145">Fine.&nbsp; Crop factor is related to sensor size.&nbsp; It gives you a different FOV.&nbsp; I think everyone can agree on that.&nbsp; Maybe the OP will chime in, but I think he was asking about reach.&nbsp; That's where pixel density comes in.&nbsp; Pixel density is one huge reason why wildlife photogs use DX cameras.&nbsp; The end result is that I can get shots on my D500 with a 500mm lens that would require a 750mm lens on an FX camera (except in the case of the D850 because it nearly matches the pixel density).They say a picture says a thousand words, so here is a demo.&nbsp; I just took these shots through my back window (forgive the quality).&nbsp; First are the full-frame shots from a D750 (top) and a D500 (second from top). As you can see, the crop sensor on the D500 is simply giving me a cropped version of the D750 shot. Next are 100% crops.&nbsp; The D500 crop is surely giving me what I'd call more reach.&nbsp; Why is that?&nbsp; It's because the pixel density is much higher than that of the D750.&nbsp; If this isn't clear enough, then I'm afraid that's all the explaining I can do.&nbsp; In a wildlife situation where we can only get so close to the subject, the camera with the higher pixel density is king, and the extra &quot;reach&quot; it gives is a very real thing.[ATTACH]270152[/ATTACH][ATTACH]270154[/ATTACH][ATTACH]270155[/ATTACH][ATTACH]270153[/ATTACH]</blockquote>

[QUOTE="ISOhappy, post: 642812, member: 44145"] Fine. Crop factor is related to sensor size. It gives you a different FOV. I think everyone can agree on that. Maybe the OP will chime in, but I think he was asking about reach. That's where pixel density comes in. Pixel density is one huge reason why wildlife photogs use DX cameras. The end result is that I can get shots on my D500 with a 500mm lens that would require a 750mm lens on an FX camera (except in the case of the D850 because it nearly matches the pixel density). They say a picture says a thousand words, so here is a demo. I just took these shots through my back window (forgive the quality). First are the full-frame shots from a D750 (top) and a D500 (second from top). As you can see, the crop sensor on the D500 is simply giving me a cropped version of the D750 shot. Next are 100% crops. The D500 crop is surely giving me what I'd call more reach. Why is that? It's because the pixel density is much higher than that of the D750. If this isn't clear enough, then I'm afraid that's all the explaining I can do. In a wildlife situation where we can only get so close to the subject, the camera with the higher pixel density is king, and the extra "reach" it gives is a very real thing. [ATTACH=CONFIG]270152._xfImport[/ATTACH][ATTACH=CONFIG]270154._xfImport[/ATTACH][ATTACH=CONFIG]270155._xfImport[/ATTACH][ATTACH=CONFIG]270153._xfImport[/ATTACH] [/QUOTE]

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