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Message: <blockquote data-quote="mikew_RIP" data-source="post: 495989" data-attributes="member: 14174">Something ime trying to get my head round,will 24mp on a DX resolve more fine detail than 24mp on FX,i understand the DR,noise, ect factors but not the actual resolving power.The reason i ask is i have this 150-600 Sigma contemporary lens on a FX and cannot get the detail i used to get with the Tamron on my D7100,we are not talking about a crop from the file as i would expect the DX to hold up better than if i start cropping the FX,ime comparing full file image,dont want to put examples up as i am more interested in the scientific aspect of 24mp on either sensor rather than getting involved in lighting ect on individual images.Or is it the Sigma lens is just not as good as the Tamron and the sensors should both be able to resolve the same detail,or am i going altogether in the wrong direction looking for a solution.</blockquote>