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Message: <blockquote data-quote="Anaxopet" data-source="post: 349316" data-attributes="member: 30777">Hello everybody,In a couple of days my Tamron 150-600 will arrive and I really need your advise on what body I should buy (for wildlife - birds mainly, sometimes foxes, wild boars, e.t.c.). I don't think I can save enough money to buy d810, so I have to choose between D610 or D7100.Conditions and limitations: 1) we don't have much sun here which means constant high ISO settings, so level of noise has to be as low as possible2) I often have to crop and use for PP no more than 1/3 of my pics as most birds that we have here are really shy and small (average distance to the subject - 30 m/100 feet)3) I'd like my pics to be as sharp as possible as from this depends if I can identify the bird or not (that can be disappointing after chasing little thing for 3 hours in boggy forest)From what I've learned telephoto lenses seem to show lack of sharpness with DX bodies (due to smaller pixel size? ) DxOMark didn't test Tamron Nikon yet, but results for the new Nikkor AF-S 80-400G are: on D610 = sharpness 15, on D7100 = sharpness 9. I assume we'll get similar gap with Tamron?But I've found plenty of excellent photos of birds on flickr with D7100 + Tamron 150-600. So if you need acceptable crops (as sharp and as little noise as possible) what would you choose: DX or FX?Please tell me what you think, really appreciate your help!</blockquote>