Blackmagic PYXIS 12K has a
98.8MP Full frame (35.6 x 23.3 mm ) sized CMOS sensor . On the other hand, Leica M9 has a
18.0MP Full frame (36 x 24 mm ) sized CCD sensor .
Blackmagic PYXIS 12K's sensor provides 80.8MP more than Leica M9's sensor, which gives a significant advantage in real life. You can print your images larger or crop more freely.
On the other hand, please keep in mind that Max sensor resolution is not the only determinant of resolving power. Factors such as the optical elements, low pass filter, pixel size and sensor technology also affects the final resolution of the captured image.
One other difference between these two cameras that is worth mentioning is that Leica M9's sensor doesn't have an anti-alias (Low-Pass) filter. Removing anti-alias filter increases the sharpness and level of detail but at the same time, it increases the chance of moiré occurring in certain scenes.
Below you can see the PYXIS 12K and M9 sensor size comparison.
Sensor Size and Resolution Comparison image of Blackmagic PYXIS 12K and Leica M9 Cameras
Blackmagic PYXIS 12K and Leica M9 have almost the same sensor size, so neither of them has any significant advantage over the other in terms of providing control over depth of field when used with the same focal length and aperture.
Sensor size sets the circle of confusion, so it drives how much depth of field each
of these bodies gives you at a given aperture. You can calculate it exactly for the
Blackmagic PYXIS 12K
or the
Leica M9 ,
including hyperfocal distance.
