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Sam Bennett
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FX vs. DX throwdown...


Okay, so to test (and hopefully validate) the conclusions I came up with a while back while I was a Canon guy, I decided to re-run the same test with the D700 to see if I was correct or not. This setup is not ideal, but I think it shows the point fairly well. Both of these shots are from the D700, one shot with a 50mm f/1.4 at f/1.4 with the camera in DX and the other with a 24-70/2.8 at f/2.8 to (roughly) equalize the DoF in the shot. Both are taken from the same place with the same lighting. Focusing was achieved using live view, dialing in across multiple shots and choosing the ones that seem best in focus, and closest in focus to each other. The 50mm shot is at a bit of a disadvantage because I couldn\'t set it to f/1.6, which would be a closer match DoF-wise to f/2.8 (it\'s an older MF 50mm that only has full-stops). Both images are resized to the same size. The resolution differences between the FX and DX shots are obvious, but they shouldn\'t come into much play here - it\'s not a demonstration of detail per se, more a demonstration of the (obvious) optical differences between shooting at f/1.4 and f/2.8.

So, which image do you think looks \"better\"?

A


B



Nov 08, 2008 at 12:18 PM





  Previous versions of Sam Bennett's message #6360484 « FX vs. DX throwdown... »