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04/04/12(Wed)06:09 No. 1576704 File: 1333534187.png -(23 KB, 252x247, Picture 36.png ) >>1576578 So you're saying that in an 800 pixel facebook shot you can see the difference between wide open and f/4? >>1576196 Okay, how about this? Ever use a flash? Let's
look at it another way. Suppose you made a tiny picture frame, like the
one pictured, and glued it to your FF sensor, blocking light from
reaching the pixels near the edge, and turning your FX camera into a DX. What magical effect did this have on the remaining pixels' light sensitivity and dynamic range? That's right, none at all. All
other factors equal, no, full frame sensors are not faster, they're not
better in low light, and they're not going to give you better image
quality.>>1576528 has
hit on the only real benefit, although he's still somewhat in denial
about how his venerable D700's sensor ranks against four years of
technological progress. You have better lens options, particularly in
the wide angle arena. In terms of dynamic range and sensitivity, Bigger pixels are better. Newer sensors are better. But most importantly, any modern "serious" digital camera is going to perform excellently in low light.