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Photography Q&A
Help me understand FX vs. DX
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<blockquote data-quote="Chris@sabor" data-source="post: 519235" data-attributes="member: 40915"><p>Doing lots of research on my next camera...</p><p></p><p>Most of what I read says that DX is better for wildlife do to extra reach (crop factor). Here is what is puzzling me...</p><p></p><p>If a full frame camera receives more light at the same f-stop because you have to apply the crop factor to that as well, wouldn't a full frame image taken at the same f-stop and cropped to DX size actually be able to be shot faster and at lower ISO?</p><p></p><p>or...</p><p></p><p>If you shoot a DX sensor camera at 600mm f-6.3 (effectively 900mm @ approx. F8) or shoot a FX sensor camera at 600mm f-6.3 and crop to 900mm still at f-6.3 yield better IQ?</p><p></p><p>I think I have stated the question correctly, please help me understand if I haven't.</p><p></p><p>Thank You!</p></blockquote><p></p>
[QUOTE="Chris@sabor, post: 519235, member: 40915"] Doing lots of research on my next camera... Most of what I read says that DX is better for wildlife do to extra reach (crop factor). Here is what is puzzling me... If a full frame camera receives more light at the same f-stop because you have to apply the crop factor to that as well, wouldn't a full frame image taken at the same f-stop and cropped to DX size actually be able to be shot faster and at lower ISO? or... If you shoot a DX sensor camera at 600mm f-6.3 (effectively 900mm @ approx. F8) or shoot a FX sensor camera at 600mm f-6.3 and crop to 900mm still at f-6.3 yield better IQ? I think I have stated the question correctly, please help me understand if I haven't. Thank You! [/QUOTE]
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Help me understand FX vs. DX
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