Re: Are the D4, D800 and D600 the same camera with different casing?
The D4 sensor is made by Renseas, the sensors of the D80 0and D600 by Sony.
Sony uses a massive column parallel read-out architecture, which gives it very low readnoise at base ISO levels. The D4 has a classic multipath sequential ADC circuits.
Even if the AF module might be identical between D800 and D4, the key difference is the significant shorter blackout time the D4 is capable to deliver (due to its faster fps a requirement).
According to chipworks the D800 and D600 sensors are made in 180 nanometer chip process, the D4 in 250 nanometer.
This is how the D800 pixel structure looks like (source:chipworks)
This is the respective D4 pixel.
regards,
Andy
Oct 29, 2012 at 09:47 AM
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